TDMS Study 05135-07 Pathology Tables
NTP Experiment-Test: 05135-07 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOPRENE Date: 09/24/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 10:01:23 2 YEAR CHRONIC Facility: Battelle Northwest Chemical CAS #: 78-79-5 Lock Date: 03/13/96 Cage Range: All Reasons For Removal: All Removal Date Range: All Treatment Groups: Include All Page 1 NTP Experiment-Test: 05135-07 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOPRENE Date: 09/24/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 10:01:23 _____________________________________________________________________________________________________________________ | 6| 6| 7| 7| 7| 7| 7| 5| 4| 7| 7| 7| 7| 7| 5| 7| 7| 7| 7| 7| 4| 3| 7| 7| 5| DAY ON TEST | 3| 8| 3| 3| 3| 3| 3| 9| 8| 3| 3| 3| 3| 3| 5| 3| 3| 3| 3| 3| 5| 9| 3| 3| 8| | 0| 4| 4| 5| 5| 5| 5| 6| 2| 4| 4| 4| 6| 5| 2| 6| 4| 5| 4| 4| 4| 8| 4| 5| 0| _____________________________________________________________________________________________________________________| | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| FISCHER 344 RATS FEMALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| ANIMAL ID | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| CONTROL | 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2| | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| _____________________________________________________________________________________________________________________| ALIMENTARY SYSTEM | | | | __________________________________________________________________________| Esophagus | + + + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Intestine Large, Colon | + + + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Intestine Large, Rectum | + + + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Intestine Large, Cecum | + A + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Intestine Small, Duodenum | + A + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Intestine Small, Jejunum | + A + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Intestine Small, Ileum | + A + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Liver | + + + + + + + + + + + + + + + + + + + + + + + + +| Angiectasis | | Basophilic Focus | X X X X X X X X X X X X X X X X X | Clear Cell Focus | X X X | Eosinophilic Focus | X | Fatty Change | 2 2 | Hepatodiaphragmatic Nodule | X | Mixed Cell Focus | X X X | Bile Duct, Cyst | | Bile Duct, Hyperplasia | | Centrilobular, Necrosis | | __________________________________________________________________________| Mesentery | + + + + | Fat, Necrosis | 2 3 2 2 | __________________________________________________________________________| Pancreas | + + + + + + + + + + + + + + + + + + + + + + + + +| Atrophy | 2 2 3 1 2 2 2 2 | Basophilic Focus | | __________________________________________________________________________| Salivary Glands | + + + + + + + + + + + + + + + + + + + + + + + + +| Atrophy | | __________________________________________________________________________| Stomach, Forestomach | + + + + + + + + + + + + + + + + + + + + + + + + +| Necrosis | 2 2 | __________________________________________________________________________| Stomach, Glandular | + + + + + + + + + + + + + + + + + + + + + + + + +| Necrosis | 2 | __________________________________________________________________________| Tongue | | _____________________________________________________________________________________________________________________| CARDIOVASCULAR SYSTEM | | | | __________________________________________________________________________| Heart | + + + + + + + + + + + + + + + + + + + + + + + + +| Cardiomyopathy | 2 1 2 1 1 1 2 1 1 2 1 2 1 2 2 1 1 2 1| _____________________________________________________________________________________________________________________| ENDOCRINE SYSTEM | | | | __________________________________________________________________________| Adrenal Cortex | + + + + + + + + + + + + + + + + + + + + + + + + +| Degeneration, Cystic | | Hyperplasia | 2 2 2 2 2 2 2 2 2 2 2| Hypertrophy | 2 2 2 2 1 | Necrosis | | Vacuolization Cytoplasmic | 2 2 2 2 | __________________________________________________________________________| Adrenal Medulla | + + + + + + + + + + + + + + + + + + + + + + + + +| Hyperplasia | 2 | _____________________________________________________________________________________________________________________| Page 2 NTP Experiment-Test: 05135-07 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOPRENE Date: 09/24/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 10:01:23 _____________________________________________________________________________________________________________________ | 6| 6| 7| 7| 7| 7| 7| 5| 4| 7| 7| 7| 7| 7| 5| 7| 7| 7| 7| 7| 4| 3| 7| 7| 5| DAY ON TEST | 3| 8| 3| 3| 3| 3| 3| 9| 8| 3| 3| 3| 3| 3| 5| 3| 3| 3| 3| 3| 5| 9| 3| 3| 8| | 0| 4| 4| 5| 5| 5| 5| 6| 2| 4| 4| 4| 6| 5| 2| 6| 4| 5| 4| 4| 4| 8| 4| 5| 0| _____________________________________________________________________________________________________________________| | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| FISCHER 344 RATS FEMALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| ANIMAL ID | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| CONTROL | 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2| | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| _____________________________________________________________________________________________________________________| ENDOCRINE SYSTEM - cont | | | | __________________________________________________________________________| Islets, Pancreatic | + + + + + + + + + + + + + + + + + + + + + + + + +| Hyperplasia | 2 | __________________________________________________________________________| Parathyroid Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Pituitary Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| Pars Distalis, Hyperplasia | 3 2 2 2 2 4 | __________________________________________________________________________| Thyroid Gland | A + + + + + + + + + + + + + + + + + + + + + + + +| C-Cell, Hyperplasia | 1 1 2 2 2 2 2 1 1 1 2 1 2 1 1 1 1 2 2 | Follicular Cell, Hyperplasia | | _____________________________________________________________________________________________________________________| GENERAL BODY SYSTEM | | | | None | | _____________________________________________________________________________________________________________________| GENITAL SYSTEM | | | | __________________________________________________________________________| Clitoral Gland | + + + + + M + + + + + + + + M M + + + + + + + + +| Hyperplasia | 3 | __________________________________________________________________________| Ovary | + + + + + + + + + + + + + + + + + + + + + + + + +| Cyst | 3 3 | __________________________________________________________________________| Uterus | + + + + + + + + + + + + + + + + + + + + + + + + +| Inflammation, Chronic Active | 4 | _____________________________________________________________________________________________________________________| HEMATOPOIETIC SYSTEM | | | | __________________________________________________________________________| Bone Marrow | + + + + + + + + + + + + + + + + + + + + + + + + A| Myelofibrosis | | __________________________________________________________________________| Lymph Node, Bronchial | + + + + + M + + + + + + + + M + + + + + M + + M +| __________________________________________________________________________| Lymph Node, Mandibular | + M + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Lymph Node, Mesenteric | + + + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Lymph Node, Mediastinal | + M + + + M + + + + + + + + + + + + + + + + + + M| __________________________________________________________________________| Spleen | + + + + + + + + + + + + + + + + + + + + + + + + +| Fibrosis | 2| Hematopoietic Cell Proliferation | 3 3 3 | Hemorrhage | | Necrosis | | __________________________________________________________________________| Thymus | + + + + + + + + + + + + + + + + + + + + + + + + +| _____________________________________________________________________________________________________________________| INTEGUMENTARY SYSTEM | | | | __________________________________________________________________________| Mammary Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| Galactocele | | Hyperplasia | 2 | __________________________________________________________________________| Skin | + + + + + + + + + + + + + + + + + + + + + + + + +| Cyst Epithelial Inclusion | X | Inflammation, Chronic Active | 1 | _____________________________________________________________________________________________________________________| MUSCULOSKELETAL SYSTEM | | | | __________________________________________________________________________| Bone | + + + + + + + + + + + + + + + + + + + + + + + + +| _____________________________________________________________________________________________________________________| Page 3 NTP Experiment-Test: 05135-07 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOPRENE Date: 09/24/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 10:01:23 _____________________________________________________________________________________________________________________ | 6| 6| 7| 7| 7| 7| 7| 5| 4| 7| 7| 7| 7| 7| 5| 7| 7| 7| 7| 7| 4| 3| 7| 7| 5| DAY ON TEST | 3| 8| 3| 3| 3| 3| 3| 9| 8| 3| 3| 3| 3| 3| 5| 3| 3| 3| 3| 3| 5| 9| 3| 3| 8| | 0| 4| 4| 5| 5| 5| 5| 6| 2| 4| 4| 4| 6| 5| 2| 6| 4| 5| 4| 4| 4| 8| 4| 5| 0| _____________________________________________________________________________________________________________________| | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| FISCHER 344 RATS FEMALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| ANIMAL ID | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| CONTROL | 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2| | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| _____________________________________________________________________________________________________________________| MUSCULOSKELETAL SYSTEM - cont | | | | Fibrous Osteodystrophy | | Hyperostosis | 3 2 | __________________________________________________________________________| Skeletal Muscle | + | _____________________________________________________________________________________________________________________| NERVOUS SYSTEM | | | | __________________________________________________________________________| Brain | + + + + + + + + + + + + + + + + + + + + + + + + +| Gliosis | | _____________________________________________________________________________________________________________________| RESPIRATORY SYSTEM | | | | __________________________________________________________________________| Larynx | + + + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Lung | + + + + + + + + + + + + + + + + + + + + + + + + +| Inflammation, Chronic Active | 2 3 3 2 1 2 2 2 2 2 2 3 3 2 2 2 2 | Alveolar Epithelium, Hyperplasia | 1 1 1 | __________________________________________________________________________| Nose | + + + + + + + + + + + + + + + + + + + + + + + + +| Foreign Body | | Inflammation, Suppurative | 2 1 2 | Thrombosis | 2| Olfactory Epithelium, Metaplasia | 1 | __________________________________________________________________________| Trachea | + + + + + + + + + + + + + + + + + + + + + + + + +| _____________________________________________________________________________________________________________________| SPECIAL SENSES SYSTEM | | | | __________________________________________________________________________| Eye | + + | Cataract | 2 4 | Retina, Atrophy | 3 3 | _____________________________________________________________________________________________________________________| URINARY SYSTEM | | | | __________________________________________________________________________| Kidney | + + + + + + + + + + + + + + + + + + + + + + + + +| Cyst | 1 | Nephropathy | 2 3 2 1 2 2 2 2 1 2 1 2 2 2 1 2 2 2 2 2 3 2 1| Renal Tubule, Hyperplasia | | __________________________________________________________________________| Urinary Bladder | + + + + + + + + + + + + + + + + + + + + + + + + +| Transitional Epithelium, Hyperplasia | | _____________________________________________________________________________________________________________________| Page 4 NTP Experiment-Test: 05135-07 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOPRENE Date: 09/24/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 10:01:23 __________________________________________________________________________________________________________________________________ | 6| 7| 7| 7| 7| 6| 6| 7| 6| 7| 5| 6| 7| 5| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 6| | DAY ON TEST | 2| 3| 2| 2| 3| 5| 7| 0| 5| 3| 8| 4| 3| 3| 3| 1| 2| 3| 3| 3| 3| 3| 3| 3| 7| | | 9| 6| 7| 8| 6| 7| 1| 5| 7| 4| 0| 8| 6| 9| 4| 4| 7| 4| 6| 5| 4| 5| 5| 6| 0| T (*) | _____________________________________________________________________________________________________________________| | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| O | FISCHER 344 RATS FEMALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| T | ANIMAL ID | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| A | CONTROL | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5| L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | __________________________________________________________________________________________________________________________________ ALIMENTARY SYSTEM | | | | | | __________________________________________________________________________|____________| Esophagus | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | __________________________________________________________________________|____________| Intestine Large, Colon | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | __________________________________________________________________________|____________| Intestine Large, Rectum | + + + + I + + + + + + + M + + + + + + + + + + + +| 48 | __________________________________________________________________________|____________| Intestine Large, Cecum | + + + + + + + + + + + + + + + + + + + + + + + + +| 49 | __________________________________________________________________________|____________| Intestine Small, Duodenum | + + + + + + + + + + + + + + + + + + + + + + + + +| 49 | __________________________________________________________________________|____________| Intestine Small, Jejunum | + + + + + + + + + + + A + + + + + + + + + + + + +| 48 | __________________________________________________________________________|____________| Intestine Small, Ileum | + + + + + + + + + + + + + + + + + + + + + + + + +| 49 | __________________________________________________________________________|____________| Liver | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Angiectasis | 1 3 | 2 2.0| Basophilic Focus | X X X X X X X X X X X X X X X X X X X | 36 | Clear Cell Focus | X X X X X X | 9 | Eosinophilic Focus | X | 2 | Fatty Change | 3 1 2 3 1 3| 8 2.1| Hepatodiaphragmatic Nodule | X | 2 | Mixed Cell Focus | X | 4 | Bile Duct, Cyst | 2 | 1 2.0| Bile Duct, Hyperplasia | 2 1 1 | 3 1.3| Centrilobular, Necrosis | 1 1 3 1 1| 5 1.4| __________________________________________________________________________|____________| Mesentery | + + + + + | 9 | Fat, Necrosis | 2 2 2 2 2 | 9 2.1| __________________________________________________________________________|____________| Pancreas | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Atrophy | 1 2 3 1 4 1 2 1 1 1| 18 1.8| Basophilic Focus | X | 1 | __________________________________________________________________________|____________| Salivary Glands | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Atrophy | 2 | 1 2.0| __________________________________________________________________________|____________| Stomach, Forestomach | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Necrosis | 3 3 3| 5 2.6| __________________________________________________________________________|____________| Stomach, Glandular | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Necrosis | 2 2 | 3 2.0| __________________________________________________________________________|____________| Tongue | + | 1 | _____________________________________________________________________________________________________________________| | CARDIOVASCULAR SYSTEM | | | | | | __________________________________________________________________________|____________| Heart | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Cardiomyopathy | 1 2 2 1 2 1 2 2 2 1 2 1 2 1 1 2 | 35 1.5| _____________________________________________________________________________________________________________________| | ENDOCRINE SYSTEM | | | | | | __________________________________________________________________________|____________| Adrenal Cortex | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Degeneration, Cystic | 3 | 1 3.0| Hyperplasia | 2 2 2 2 1 2 1 2 2 2 2 2 2 2 | 25 1.9| __________________________________________________________________________________________________________________________________ * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade + : Tissue examined microscopically M : Missing tissue 1-4 : Lesion qualified as: X : Lesion present but not qualified A : Autolysis precludes examination 1) Minimal 3) Moderate I : Insufficient tissue BLANK : Not examined 2) Mild 4) Marked Page 5 NTP Experiment-Test: 05135-07 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOPRENE Date: 09/24/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 10:01:23 __________________________________________________________________________________________________________________________________ | 6| 7| 7| 7| 7| 6| 6| 7| 6| 7| 5| 6| 7| 5| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 6| | DAY ON TEST | 2| 3| 2| 2| 3| 5| 7| 0| 5| 3| 8| 4| 3| 3| 3| 1| 2| 3| 3| 3| 3| 3| 3| 3| 7| | | 9| 6| 7| 8| 6| 7| 1| 5| 7| 4| 0| 8| 6| 9| 4| 4| 7| 4| 6| 5| 4| 5| 5| 6| 0| T (*) | _____________________________________________________________________________________________________________________| | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| O | FISCHER 344 RATS FEMALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| T | ANIMAL ID | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| A | CONTROL | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5| L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | __________________________________________________________________________________________________________________________________ ENDOCRINE SYSTEM - cont | | | | | | Hypertrophy | 1 1 3 2 | 9 1.8| Necrosis | 2 3 | 2 2.5| Vacuolization Cytoplasmic | | 4 2.0| __________________________________________________________________________|____________| Adrenal Medulla | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Hyperplasia | 2 2 1 2 3 2 2 3 2 2 | 11 2.1| __________________________________________________________________________|____________| Islets, Pancreatic | + + + + + + + + + + + A + + + + + + + + + + + + +| 49 | Hyperplasia | 3 | 2 2.5| __________________________________________________________________________|____________| Parathyroid Gland | + + + + + + M + M + + + + + + + + + + + + + + + +| 48 | __________________________________________________________________________|____________| Pituitary Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Pars Distalis, Hyperplasia | 2 2 2 2 3 2 | 12 2.3| __________________________________________________________________________|____________| Thyroid Gland | + + + + + + + + + + + A + + + + + + + + + + + + +| 48 | C-Cell, Hyperplasia | 1 1 1 2 3 1 1 1 1 1 1 2 3 2 2 1 1 2 2 2 4| 40 1.6| Follicular Cell, Hyperplasia | 1 | 1 1.0| _____________________________________________________________________________________________________________________| | GENERAL BODY SYSTEM | | | | | | None | | | _____________________________________________________________________________________________________________________| | GENITAL SYSTEM | | | | | | __________________________________________________________________________|____________| Clitoral Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| 47 | Hyperplasia | 2 | 2 2.5| __________________________________________________________________________|____________| Ovary | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Cyst | 2 3 2 | 5 2.6| __________________________________________________________________________|____________| Uterus | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Inflammation, Chronic Active | | 1 4.0| _____________________________________________________________________________________________________________________| | HEMATOPOIETIC SYSTEM | | | | | | __________________________________________________________________________|____________| Bone Marrow | + + + + + + + + + + + + + + + + + + + + + + + + +| 49 | Myelofibrosis | 4 | 1 4.0| __________________________________________________________________________|____________| Lymph Node, Bronchial | + + + + + + + M + + + + + M + M M + + + + + + + +| 42 | __________________________________________________________________________|____________| Lymph Node, Mandibular | + + + + M + + + + + + M + + + + M + + + M + + + +| 45 | __________________________________________________________________________|____________| Lymph Node, Mesenteric | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | __________________________________________________________________________|____________| Lymph Node, Mediastinal | + + + + M + + + + + + + M + + M + + + + + + + + +| 44 | __________________________________________________________________________|____________| Spleen | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Fibrosis | 2 1 2 | 4 1.8| Hematopoietic Cell Proliferation | 3 | 4 3.0| Hemorrhage | 2 | 1 2.0| Necrosis | 4 | 1 4.0| __________________________________________________________________________|____________| Thymus | + + + + + + + + M M + + + + + + + + + + + + + + +| 48 | _____________________________________________________________________________________________________________________| | INTEGUMENTARY SYSTEM | | | __________________________________________________________________________________________________________________________________ * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade + : Tissue examined microscopically M : Missing tissue 1-4 : Lesion qualified as: X : Lesion present but not qualified A : Autolysis precludes examination 1) Minimal 3) Moderate I : Insufficient tissue BLANK : Not examined 2) Mild 4) Marked Page 6 NTP Experiment-Test: 05135-07 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOPRENE Date: 09/24/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 10:01:23 __________________________________________________________________________________________________________________________________ | 6| 7| 7| 7| 7| 6| 6| 7| 6| 7| 5| 6| 7| 5| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 6| | DAY ON TEST | 2| 3| 2| 2| 3| 5| 7| 0| 5| 3| 8| 4| 3| 3| 3| 1| 2| 3| 3| 3| 3| 3| 3| 3| 7| | | 9| 6| 7| 8| 6| 7| 1| 5| 7| 4| 0| 8| 6| 9| 4| 4| 7| 4| 6| 5| 4| 5| 5| 6| 0| T (*) | _____________________________________________________________________________________________________________________| | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| O | FISCHER 344 RATS FEMALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| T | ANIMAL ID | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| A | CONTROL | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5| L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | __________________________________________________________________________________________________________________________________ INTEGUMENTARY SYSTEM - cont | | | | | | | | | __________________________________________________________________________|____________| Mammary Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Galactocele | 4 | 1 4.0| Hyperplasia | | 1 2.0| __________________________________________________________________________|____________| Skin | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Cyst Epithelial Inclusion | | 1 | Inflammation, Chronic Active | | 1 1.0| _____________________________________________________________________________________________________________________| | MUSCULOSKELETAL SYSTEM | | | | | | __________________________________________________________________________|____________| Bone | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Fibrous Osteodystrophy | 1 | 1 1.0| Hyperostosis | 3 4 3 3 | 6 3.0| __________________________________________________________________________|____________| Skeletal Muscle | | 1 | _____________________________________________________________________________________________________________________| | NERVOUS SYSTEM | | | | | | __________________________________________________________________________|____________| Brain | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Gliosis | 2 | 1 2.0| _____________________________________________________________________________________________________________________| | RESPIRATORY SYSTEM | | | | | | __________________________________________________________________________|____________| Larynx | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | __________________________________________________________________________|____________| Lung | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Inflammation, Chronic Active | 2 1 1 1 2 1 2 1 2 2 1 1 2 1 | 31 1.8| Alveolar Epithelium, Hyperplasia | 1 1 | 5 1.0| __________________________________________________________________________|____________| Nose | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Foreign Body | X | 1 | Inflammation, Suppurative | 1 2 | 5 1.6| Thrombosis | 3 | 2 2.5| Olfactory Epithelium, Metaplasia | | 1 1.0| __________________________________________________________________________|____________| Trachea | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | _____________________________________________________________________________________________________________________| | SPECIAL SENSES SYSTEM | | | | | | __________________________________________________________________________|____________| Eye | + + + | 5 | Cataract | 3 3 3 | 5 3.0| Retina, Atrophy | 3 4 4 | 5 3.4| _____________________________________________________________________________________________________________________| | URINARY SYSTEM | | | | | | __________________________________________________________________________|____________| Kidney | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Cyst | | 1 1.0| Nephropathy | 2 1 4 1 2 2 1 3 3 1 2 1 2 1 2 3 1 2 2 4 2 3 1| 46 1.9| __________________________________________________________________________________________________________________________________ * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade + : Tissue examined microscopically M : Missing tissue 1-4 : Lesion qualified as: X : Lesion present but not qualified A : Autolysis precludes examination 1) Minimal 3) Moderate I : Insufficient tissue BLANK : Not examined 2) Mild 4) Marked Page 7 NTP Experiment-Test: 05135-07 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOPRENE Date: 09/24/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 10:01:23 __________________________________________________________________________________________________________________________________ | 6| 7| 7| 7| 7| 6| 6| 7| 6| 7| 5| 6| 7| 5| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 6| | DAY ON TEST | 2| 3| 2| 2| 3| 5| 7| 0| 5| 3| 8| 4| 3| 3| 3| 1| 2| 3| 3| 3| 3| 3| 3| 3| 7| | | 9| 6| 7| 8| 6| 7| 1| 5| 7| 4| 0| 8| 6| 9| 4| 4| 7| 4| 6| 5| 4| 5| 5| 6| 0| T (*) | _____________________________________________________________________________________________________________________| | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| O | FISCHER 344 RATS FEMALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| T | ANIMAL ID | 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| A | CONTROL | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5| L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | __________________________________________________________________________________________________________________________________ URINARY SYSTEM - cont | | | | | | Renal Tubule, Hyperplasia | 3 2 1 2 | 4 2.0| __________________________________________________________________________|____________| Urinary Bladder | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Transitional Epithelium, Hyperplasia | 3 | 1 3.0| __________________________________________________________________________________________________________________________________ * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade + : Tissue examined microscopically M : Missing tissue 1-4 : Lesion qualified as: X : Lesion present but not qualified A : Autolysis precludes examination 1) Minimal 3) Moderate I : Insufficient tissue BLANK : Not examined 2) Mild 4) Marked Page 8 NTP Experiment-Test: 05135-07 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOPRENE Date: 09/24/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 10:01:23 _____________________________________________________________________________________________________________________ | 6| 7| 7| 6| 6| 7| 7| 5| 6| 7| 7| 7| 7| 6| 7| 6| 7| 7| 7| 7| 7| 7| 7| 6| 7| DAY ON TEST | 0| 3| 3| 7| 0| 3| 3| 8| 8| 3| 3| 3| 3| 2| 3| 9| 3| 3| 3| 3| 3| 3| 3| 9| 2| | 1| 6| 6| 0| 2| 4| 6| 7| 5| 4| 5| 5| 6| 2| 5| 5| 5| 5| 6| 5| 4| 6| 6| 4| 7| _____________________________________________________________________________________________________________________| | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| FISCHER 344 RATS FEMALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| ANIMAL ID | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 220 PPM | 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2| | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| _____________________________________________________________________________________________________________________| ALIMENTARY SYSTEM | | | | __________________________________________________________________________| Esophagus | + + + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Intestine Large, Colon | A + + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Intestine Large, Rectum | A + + + + + + + + + + + + + + + + + + + + + + I +| __________________________________________________________________________| Intestine Large, Cecum | A + + + + + + + A + + + + + + + + + + + + + + + +| __________________________________________________________________________| Intestine Small, Duodenum | A + + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Intestine Small, Jejunum | A + + + + + + + A + + + + + + + + + + + + + + + +| __________________________________________________________________________| Intestine Small, Ileum | A + + + + + + + A + + + + + + + + + + + + + + + +| __________________________________________________________________________| Liver | + + + + + + + + + + + + + + + + + + + + + + + + +| Angiectasis | 4 1 | Basophilic Focus | X X X X X X X X X X X X X X X X X X X| Clear Cell Focus | X X X X X | Degeneration, Cystic | 2 | Degeneration, Fatty | | Eosinophilic Focus | | Fatty Change | 2 2 3 | Hepatodiaphragmatic Nodule | X X X | Mixed Cell Focus | X X X | Regeneration | | Bile Duct, Cyst | | Bile Duct, Hyperplasia | 1 1 2 1 2 2 1 | Centrilobular, Necrosis | 2 1 2 1 | __________________________________________________________________________| Mesentery | + + + | Fat, Necrosis | 2 2 2 | __________________________________________________________________________| Oral Mucosa | | __________________________________________________________________________| Pancreas | + + + + + + + + + + + + + + + + + + + + + + + + +| Atrophy | 2 2 1 1 1 2 | Hyperplasia | 3| Metaplasia, Hepatocyte | 2 | __________________________________________________________________________| Salivary Glands | + + + + + + + + + + + + + + + + + + + + + + + + +| Atrophy | 2 | __________________________________________________________________________| Stomach, Forestomach | + + + + + + + + + + + + + + + + + + + + + + + + +| Diverticulum | | Necrosis | 2 | __________________________________________________________________________| Stomach, Glandular | + + + + + + + + + + + + + + + + + + + + + + + + +| Necrosis | 2 2 | _____________________________________________________________________________________________________________________| CARDIOVASCULAR SYSTEM | | | | __________________________________________________________________________| Heart | + + + + + + + + + + + + + + + + + + + + + + + + +| Cardiomyopathy | 1 1 1 1 2 2 2 1 1 2 2 1 2 1 2| _____________________________________________________________________________________________________________________| ENDOCRINE SYSTEM | | | | __________________________________________________________________________| Adrenal Cortex | + + + + + + + + + + + + + + + + + + + + + + + + +| Ectopic Tissue | 1 | Hyperplasia | 2 2 3 1 2 2 2 2 2 2 | _____________________________________________________________________________________________________________________| Page 9 NTP Experiment-Test: 05135-07 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOPRENE Date: 09/24/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 10:01:23 _____________________________________________________________________________________________________________________ | 6| 7| 7| 6| 6| 7| 7| 5| 6| 7| 7| 7| 7| 6| 7| 6| 7| 7| 7| 7| 7| 7| 7| 6| 7| DAY ON TEST | 0| 3| 3| 7| 0| 3| 3| 8| 8| 3| 3| 3| 3| 2| 3| 9| 3| 3| 3| 3| 3| 3| 3| 9| 2| | 1| 6| 6| 0| 2| 4| 6| 7| 5| 4| 5| 5| 6| 2| 5| 5| 5| 5| 6| 5| 4| 6| 6| 4| 7| _____________________________________________________________________________________________________________________| | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| FISCHER 344 RATS FEMALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| ANIMAL ID | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 220 PPM | 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2| | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| _____________________________________________________________________________________________________________________| ENDOCRINE SYSTEM - cont | | | | Hypertrophy | 2 1 2 2 1 1 | Inflammation, Granulomatous | 2 | Vacuolization Cytoplasmic | 2 2 | __________________________________________________________________________| Adrenal Medulla | + + + + + + + + + + + + + + + + + + + + + + + + +| Hyperplasia | 2 2 3 | __________________________________________________________________________| Islets, Pancreatic | + + + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Parathyroid Gland | + + + + + + + + + I + + + + + + + + + + + + + + +| __________________________________________________________________________| Pituitary Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| Pars Distalis, Hyperplasia | 3 3 2 3 1 3 2 3| __________________________________________________________________________| Thyroid Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| C-Cell, Hyperplasia | 1 1 2 1 4 4 2 1 1 2 2 4 1 1 2 2 1| Follicular Cell, Hyperplasia | 1 | _____________________________________________________________________________________________________________________| GENERAL BODY SYSTEM | | | | None | | _____________________________________________________________________________________________________________________| GENITAL SYSTEM | | | | __________________________________________________________________________| Clitoral Gland | + + + + + + + + + + + + + + + M + + + + M + + + +| Hyperplasia | 2 | Inflammation, Chronic Active | 3 | __________________________________________________________________________| Ovary | + + + + + + + + + + + + + + + + + + + + + + + + +| Cyst | 1 2 | Inflammation, Granulomatous | 3 | __________________________________________________________________________| Uterus | + + + + + + + + + + + + + + + + + + + + + + + + +| _____________________________________________________________________________________________________________________| HEMATOPOIETIC SYSTEM | | | | __________________________________________________________________________| Bone Marrow | + + + + + + + + + + + + + + + + + + + + + + + + +| Hyperplasia, Histiocytic | | Hyperplasia, Reticulum Cell | | __________________________________________________________________________| Lymph Node | + + + | __________________________________________________________________________| Lymph Node, Bronchial | M + + M + M + + + + + + + + + + + + + M + M M + +| __________________________________________________________________________| Lymph Node, Mandibular | + + + + + + + + + + + + + + + + + + + + M + + + +| __________________________________________________________________________| Lymph Node, Mesenteric | + + + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Lymph Node, Mediastinal | + + + + + + + + + + + M + + + + + + + M + M M + +| __________________________________________________________________________| Spleen | + + + + + + + + + + + + + + + + + + + + + + + + +| Fibrosis | 2 1 | Hematopoietic Cell Proliferation | 3 3 3| Hemorrhage | | Metaplasia, Osseous | 2 | __________________________________________________________________________| Thymus | + + + M + + M + + + + + + + + + + + M + + + + + +| _____________________________________________________________________________________________________________________| INTEGUMENTARY SYSTEM | | | | __________________________________________________________________________| Mammary Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| Galactocele | | _____________________________________________________________________________________________________________________| Page 10 NTP Experiment-Test: 05135-07 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOPRENE Date: 09/24/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 10:01:23 _____________________________________________________________________________________________________________________ | 6| 7| 7| 6| 6| 7| 7| 5| 6| 7| 7| 7| 7| 6| 7| 6| 7| 7| 7| 7| 7| 7| 7| 6| 7| DAY ON TEST | 0| 3| 3| 7| 0| 3| 3| 8| 8| 3| 3| 3| 3| 2| 3| 9| 3| 3| 3| 3| 3| 3| 3| 9| 2| | 1| 6| 6| 0| 2| 4| 6| 7| 5| 4| 5| 5| 6| 2| 5| 5| 5| 5| 6| 5| 4| 6| 6| 4| 7| _____________________________________________________________________________________________________________________| | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| FISCHER 344 RATS FEMALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| ANIMAL ID | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 220 PPM | 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2| | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| _____________________________________________________________________________________________________________________| INTEGUMENTARY SYSTEM - cont | | | | __________________________________________________________________________| Skin | + + + + + + + + + + + + + + + + + + + + + + + + +| Inflammation, Chronic Active | 2 | _____________________________________________________________________________________________________________________| MUSCULOSKELETAL SYSTEM | | | | __________________________________________________________________________| Bone | + + + + + + + + + + + + + + + + + + + + + + + + +| Hyperostosis | 2 3 3 3 | _____________________________________________________________________________________________________________________| NERVOUS SYSTEM | | | | __________________________________________________________________________| Brain | + + + + + + + + + + + + + + + + + + + + + + + + +| Degeneration, Focal | | _____________________________________________________________________________________________________________________| RESPIRATORY SYSTEM | | | | __________________________________________________________________________| Larynx | + + + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Lung | + + + + + + + + + + + + + + + + + + + + + + + + +| Inflammation, Chronic Active | 2 1 1 1 1 1 1 1 1 2 1 1 1 1 | Alveolar Epithelium, Hyperplasia | 1 1 | __________________________________________________________________________| Nose | + + + + + + + + + + + + + + + + + + + + + + + + +| Foreign Body | X | Inflammation, Suppurative | 2 2 1 1 | Thrombosis | 1 | Olfactory Epithelium, Atrophy | 1 | Olfactory Epithelium, Metaplasia | 2 | Respiratory Epithelium, Hyperplasia | | Respiratory Epithelium, Metaplasia, | | Squamous | 1 | __________________________________________________________________________| Trachea | + + + + + + + + + + + + + + + + + + + + + + + + +| _____________________________________________________________________________________________________________________| SPECIAL SENSES SYSTEM | | | | __________________________________________________________________________| Eye | + + | Cataract | 2 3 | Degeneration | | Retina, Atrophy | 3 3 | _____________________________________________________________________________________________________________________| URINARY SYSTEM | | | | __________________________________________________________________________| Kidney | + + + + + + + + + + + + + + + + + + + + + + + + +| Hydronephrosis | | Infarct | 3 | Nephropathy | 1 1 1 1 1 2 2 1 2 2 2 1 1 2 2 2 3 2 2 1 1 2 2 2| Papilla, Necrosis | | __________________________________________________________________________| Urinary Bladder | + + + + + + + + + + + + + + + + + + + + + + + + +| _____________________________________________________________________________________________________________________| Page 11 NTP Experiment-Test: 05135-07 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOPRENE Date: 09/24/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 10:01:23 __________________________________________________________________________________________________________________________________ | 6| 6| 7| 6| 6| 7| 7| 7| 7| 6| 3| 6| 7| 7| 6| 7| 7| 7| 7| 7| 7| 7| 7| 4| 7| | DAY ON TEST | 2| 9| 3| 7| 6| 3| 3| 3| 3| 8| 7| 3| 2| 3| 4| 3| 3| 3| 3| 3| 1| 3| 3| 8| 3| | | 6| 3| 5| 0| 4| 4| 6| 6| 6| 6| 0| 8| 7| 5| 3| 6| 6| 5| 5| 4| 4| 6| 4| 2| 6| T (*) | _____________________________________________________________________________________________________________________| | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| O | FISCHER 344 RATS FEMALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| T | ANIMAL ID | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| A | 220 PPM | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5| L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | __________________________________________________________________________________________________________________________________ ALIMENTARY SYSTEM | | | | | | __________________________________________________________________________|____________| Esophagus | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | __________________________________________________________________________|____________| Intestine Large, Colon | A + + + + + + + + + + + + + + + + + + + + + + + +| 48 | __________________________________________________________________________|____________| Intestine Large, Rectum | A + + + + + + + + + + + + + + + + + + + + + + + +| 47 | __________________________________________________________________________|____________| Intestine Large, Cecum | A + + + + + + + + + + + + + + + + + + + + + + + +| 47 | __________________________________________________________________________|____________| Intestine Small, Duodenum | A + + + + + + + + + + + + + + + + + + + + + + + +| 48 | __________________________________________________________________________|____________| Intestine Small, Jejunum | A + + + + + + + + + + + + + + + + + + + + + + + +| 47 | __________________________________________________________________________|____________| Intestine Small, Ileum | A + + + + + + + + + + + + + + + + + + + + + + + +| 47 | __________________________________________________________________________|____________| Liver | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Angiectasis | | 2 2.5| Basophilic Focus | X X X X X X X X X X X X X X X X X X X| 38 | Clear Cell Focus | X X X X X X| 11 | Degeneration, Cystic | | 1 2.0| Degeneration, Fatty | 3 | 1 3.0| Eosinophilic Focus | X X X | 3 | Fatty Change | 3 2 2 | 6 2.3| Hepatodiaphragmatic Nodule | X | 4 | Mixed Cell Focus | X X X X X X X | 10 | Regeneration | 2 | 1 2.0| Bile Duct, Cyst | 2 | 1 2.0| Bile Duct, Hyperplasia | 1 2 | 9 1.4| Centrilobular, Necrosis | 1 | 5 1.4| __________________________________________________________________________|____________| Mesentery | + + + + + + + | 10 | Fat, Necrosis | 2 2 2 2 2 2 2 | 10 2.0| __________________________________________________________________________|____________| Oral Mucosa | + | 1 | __________________________________________________________________________|____________| Pancreas | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Atrophy | 2 2 1 1 1 1 1 | 13 1.4| Hyperplasia | 2 | 2 2.5| Metaplasia, Hepatocyte | 1 | 2 1.5| __________________________________________________________________________|____________| Salivary Glands | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Atrophy | | 1 2.0| __________________________________________________________________________|____________| Stomach, Forestomach | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Diverticulum | X | 1 | Necrosis | 4 | 2 3.0| __________________________________________________________________________|____________| Stomach, Glandular | A + + + + + + + + + + + + + + + + + + + + + + + +| 49 | Necrosis | 2 | 3 2.0| _____________________________________________________________________________________________________________________| | CARDIOVASCULAR SYSTEM | | | | | | __________________________________________________________________________|____________| Heart | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Cardiomyopathy | 2 2 1 1 1 2 2 1 2 1 1 2 1 1 1 1 1 2| 33 1.4| __________________________________________________________________________________________________________________________________ * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade + : Tissue examined microscopically M : Missing tissue 1-4 : Lesion qualified as: X : Lesion present but not qualified A : Autolysis precludes examination 1) Minimal 3) Moderate I : Insufficient tissue BLANK : Not examined 2) Mild 4) Marked Page 12 NTP Experiment-Test: 05135-07 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOPRENE Date: 09/24/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 10:01:23 __________________________________________________________________________________________________________________________________ | 6| 6| 7| 6| 6| 7| 7| 7| 7| 6| 3| 6| 7| 7| 6| 7| 7| 7| 7| 7| 7| 7| 7| 4| 7| | DAY ON TEST | 2| 9| 3| 7| 6| 3| 3| 3| 3| 8| 7| 3| 2| 3| 4| 3| 3| 3| 3| 3| 1| 3| 3| 8| 3| | | 6| 3| 5| 0| 4| 4| 6| 6| 6| 6| 0| 8| 7| 5| 3| 6| 6| 5| 5| 4| 4| 6| 4| 2| 6| T (*) | _____________________________________________________________________________________________________________________| | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| O | FISCHER 344 RATS FEMALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| T | ANIMAL ID | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| A | 220 PPM | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5| L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | __________________________________________________________________________________________________________________________________ CARDIOVASCULAR SYSTEM - cont | | | | | | _____________________________________________________________________________________________________________________| | ENDOCRINE SYSTEM | | | | | | __________________________________________________________________________|____________| Adrenal Cortex | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Ectopic Tissue | | 1 1.0| Hyperplasia | 2 2 2 2 2 2 2 | 17 2.0| Hypertrophy | 2 2 2 3 1 2 1 3| 14 1.8| Inflammation, Granulomatous | | 1 2.0| Vacuolization Cytoplasmic | 2 2 2 2 | 6 2.0| __________________________________________________________________________|____________| Adrenal Medulla | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Hyperplasia | 2 1 1 | 6 1.8| __________________________________________________________________________|____________| Islets, Pancreatic | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | __________________________________________________________________________|____________| Parathyroid Gland | M + + + + + + + M + + + M + + M + + + + + + M + M| 43 | __________________________________________________________________________|____________| Pituitary Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Pars Distalis, Hyperplasia | 3 3 2 3 1 2 3 4 | 16 2.6| __________________________________________________________________________|____________| Thyroid Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | C-Cell, Hyperplasia | 1 1 4 1 2 1 2 1 2 1 2 1 1 1 1 | 32 1.7| Follicular Cell, Hyperplasia | | 1 1.0| _____________________________________________________________________________________________________________________| | GENERAL BODY SYSTEM | | | | | | None | | | _____________________________________________________________________________________________________________________| | GENITAL SYSTEM | | | | | | __________________________________________________________________________|____________| Clitoral Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| 48 | Hyperplasia | 3 2 3 | 4 2.5| Inflammation, Chronic Active | | 1 3.0| __________________________________________________________________________|____________| Ovary | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Cyst | 2 | 3 1.7| Inflammation, Granulomatous | | 1 3.0| __________________________________________________________________________|____________| Uterus | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | _____________________________________________________________________________________________________________________| | HEMATOPOIETIC SYSTEM | | | | | | __________________________________________________________________________|____________| Bone Marrow | A + + + + + + + + + + + + + + + + + + + + + + + +| 49 | Hyperplasia, Histiocytic | 2 | 1 2.0| Hyperplasia, Reticulum Cell | 1 | 1 1.0| __________________________________________________________________________|____________| Lymph Node | + + + | 6 | __________________________________________________________________________|____________| Lymph Node, Bronchial | + M + + + + + + M + M + + + + + + M + M + + M + M| 37 | __________________________________________________________________________|____________| Lymph Node, Mandibular | + + + + + + + + M M + + + + + + + + + + + + + + +| 47 | __________________________________________________________________________|____________| Lymph Node, Mesenteric | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | __________________________________________________________________________|____________| Lymph Node, Mediastinal | + + + + + + + + + + + M + + + + + + + + + + + M +| 44 | __________________________________________________________________________________________________________________________________ * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade + : Tissue examined microscopically M : Missing tissue 1-4 : Lesion qualified as: X : Lesion present but not qualified A : Autolysis precludes examination 1) Minimal 3) Moderate I : Insufficient tissue BLANK : Not examined 2) Mild 4) Marked Page 13 NTP Experiment-Test: 05135-07 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOPRENE Date: 09/24/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 10:01:23 __________________________________________________________________________________________________________________________________ | 6| 6| 7| 6| 6| 7| 7| 7| 7| 6| 3| 6| 7| 7| 6| 7| 7| 7| 7| 7| 7| 7| 7| 4| 7| | DAY ON TEST | 2| 9| 3| 7| 6| 3| 3| 3| 3| 8| 7| 3| 2| 3| 4| 3| 3| 3| 3| 3| 1| 3| 3| 8| 3| | | 6| 3| 5| 0| 4| 4| 6| 6| 6| 6| 0| 8| 7| 5| 3| 6| 6| 5| 5| 4| 4| 6| 4| 2| 6| T (*) | _____________________________________________________________________________________________________________________| | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| O | FISCHER 344 RATS FEMALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| T | ANIMAL ID | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| A | 220 PPM | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5| L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | __________________________________________________________________________________________________________________________________ HEMATOPOIETIC SYSTEM - cont | | | | | | __________________________________________________________________________|____________| Spleen | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Fibrosis | 2 1 2 2 | 6 1.7| Hematopoietic Cell Proliferation | 3 3 | 5 3.0| Hemorrhage | 2 2 | 2 2.0| Metaplasia, Osseous | | 1 2.0| __________________________________________________________________________|____________| Thymus | + + + + + + + + + + M + + + + + + + + + M + + + +| 45 | _____________________________________________________________________________________________________________________| | INTEGUMENTARY SYSTEM | | | | | | __________________________________________________________________________|____________| Mammary Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Galactocele | 3 | 1 3.0| __________________________________________________________________________|____________| Skin | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Inflammation, Chronic Active | 4 | 2 3.0| _____________________________________________________________________________________________________________________| | MUSCULOSKELETAL SYSTEM | | | | | | __________________________________________________________________________|____________| Bone | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Hyperostosis | 2 1 1 3 | 8 2.3| _____________________________________________________________________________________________________________________| | NERVOUS SYSTEM | | | | | | __________________________________________________________________________|____________| Brain | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Degeneration, Focal | 3 | 1 3.0| _____________________________________________________________________________________________________________________| | RESPIRATORY SYSTEM | | | | | | __________________________________________________________________________|____________| Larynx | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | __________________________________________________________________________|____________| Lung | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Inflammation, Chronic Active | 1 1 1 1 2 1 1 1 1 1 1 1 1 1 1| 29 1.1| Alveolar Epithelium, Hyperplasia | 3 2 1 | 5 1.6| __________________________________________________________________________|____________| Nose | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Foreign Body | | 1 | Inflammation, Suppurative | 3 2 1 1| 8 1.6| Thrombosis | 2 | 2 1.5| Olfactory Epithelium, Atrophy | | 1 1.0| Olfactory Epithelium, Metaplasia | 3 | 2 2.5| Respiratory Epithelium, Hyperplasia | 1| 1 1.0| Respiratory Epithelium, Metaplasia, | | | Squamous | | 1 1.0| __________________________________________________________________________|____________| Trachea | A + + + + + + + + + + + + + + + + + + + + + + + +| 49 | _____________________________________________________________________________________________________________________| | SPECIAL SENSES SYSTEM | | | | | | __________________________________________________________________________|____________| Eye | + + | 4 | __________________________________________________________________________________________________________________________________ * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade + : Tissue examined microscopically M : Missing tissue 1-4 : Lesion qualified as: X : Lesion present but not qualified A : Autolysis precludes examination 1) Minimal 3) Moderate I : Insufficient tissue BLANK : Not examined 2) Mild 4) Marked Page 14 NTP Experiment-Test: 05135-07 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOPRENE Date: 09/24/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 10:01:23 __________________________________________________________________________________________________________________________________ | 6| 6| 7| 6| 6| 7| 7| 7| 7| 6| 3| 6| 7| 7| 6| 7| 7| 7| 7| 7| 7| 7| 7| 4| 7| | DAY ON TEST | 2| 9| 3| 7| 6| 3| 3| 3| 3| 8| 7| 3| 2| 3| 4| 3| 3| 3| 3| 3| 1| 3| 3| 8| 3| | | 6| 3| 5| 0| 4| 4| 6| 6| 6| 6| 0| 8| 7| 5| 3| 6| 6| 5| 5| 4| 4| 6| 4| 2| 6| T (*) | _____________________________________________________________________________________________________________________| | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| O | FISCHER 344 RATS FEMALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| T | ANIMAL ID | 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| A | 220 PPM | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5| L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | __________________________________________________________________________________________________________________________________ SPECIAL SENSES SYSTEM - cont | | | | | | Cataract | 1 | 3 2.0| Degeneration | 3 | 1 3.0| Retina, Atrophy | | 2 3.0| _____________________________________________________________________________________________________________________| | URINARY SYSTEM | | | | | | __________________________________________________________________________|____________| Kidney | A + + + + + + + + + + + + + + + + + + + + + + + +| 49 | Hydronephrosis | 3 | 1 3.0| Infarct | | 1 3.0| Nephropathy | 2 2 2 2 2 2 2 1 2 1 2 3 1 2 1 2 1 1 2 2 3 1 2| 47 1.7| Papilla, Necrosis | 2 | 1 2.0| __________________________________________________________________________|____________| Urinary Bladder | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | __________________________________________________________________________________________________________________________________ * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade + : Tissue examined microscopically M : Missing tissue 1-4 : Lesion qualified as: X : Lesion present but not qualified A : Autolysis precludes examination 1) Minimal 3) Moderate I : Insufficient tissue BLANK : Not examined 2) Mild 4) Marked Page 15 NTP Experiment-Test: 05135-07 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOPRENE Date: 09/24/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 10:01:23 _____________________________________________________________________________________________________________________ | 5| 5| 7| 7| 7| 1| 7| 7| 6| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 5| 7| 6| 5| 5| DAY ON TEST | 6| 0| 3| 3| 3| 1| 3| 3| 1| 1| 3| 1| 3| 2| 3| 3| 3| 3| 3| 3| 1| 3| 9| 8| 4| | 6| 8| 5| 5| 5| 1| 5| 5| 7| 3| 5| 0| 4| 7| 6| 4| 4| 5| 6| 5| 0| 6| 9| 0| 7| _____________________________________________________________________________________________________________________| | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| FISCHER 344 RATS FEMALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| ANIMAL ID | 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 700 PPM | 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2| | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| _____________________________________________________________________________________________________________________| ALIMENTARY SYSTEM | | | | __________________________________________________________________________| Esophagus | + + + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Intestine Large, Colon | + + + + + + + + + + + + + + + + + + + + + + A + +| __________________________________________________________________________| Intestine Large, Rectum | + + + + + + + + + + + A + + + + + + + + + + + + +| __________________________________________________________________________| Intestine Large, Cecum | + + + + + + + + + + + A + + + + + + + + + + A A +| __________________________________________________________________________| Intestine Small, Duodenum | + + + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Intestine Small, Jejunum | + + + + + + + + + + + A + + + + + + + + + + + A +| __________________________________________________________________________| Intestine Small, Ileum | + + + + + + + + + + + A + + + + + + + + + + A A +| Inflammation, Chronic Active | | __________________________________________________________________________| Liver | + + + + + + + + + + + + + + + + + + + + + + + + +| Angiectasis | 1 2 | Basophilic Focus | X X X X X X X X X X X X X X X X X | Clear Cell Focus | X X X X X | Eosinophilic Focus | X | Fatty Change | 3 3| Hepatodiaphragmatic Nodule | X X X | Mixed Cell Focus | X X X X X X | Regeneration | | Bile Duct, Hyperplasia | 2 1 2 1 | Centrilobular, Necrosis | 1 1 1 | Periportal, Infiltration Cellular, | | Lymphocyte | | __________________________________________________________________________| Mesentery | + + + | Fat, Necrosis | 2 2 3 | __________________________________________________________________________| Oral Mucosa | | Pharyngeal, Hyperplasia, Squamous | | __________________________________________________________________________| Pancreas | + + + + + + + + + + + + + + + + + + + + + + + + +| Atrophy | 2 2 1 1 2 | Basophilic Focus | X | __________________________________________________________________________| Salivary Glands | + + + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Stomach, Forestomach | + + + + + + + + + + + + + + + + + + + + + + + + +| Hyperplasia, Squamous | | Necrosis | 4 2| __________________________________________________________________________| Stomach, Glandular | + + + + + + + + + + + + + + + + + + + + + + + + +| Mineralization | 1 | Necrosis | 2 | __________________________________________________________________________| Tongue | + | Hyperplasia | 1 | __________________________________________________________________________| Tooth | + | Developmental Malformation | X | _____________________________________________________________________________________________________________________| CARDIOVASCULAR SYSTEM | | | | __________________________________________________________________________| Heart | + + + + + + + + + + + + + + + + + + + + + + + + +| Cardiomyopathy | 2 2 2 2 2 1 1 2 1 1 1 2 2 2 | _____________________________________________________________________________________________________________________| ENDOCRINE SYSTEM | | _____________________________________________________________________________________________________________________| Page 16 NTP Experiment-Test: 05135-07 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOPRENE Date: 09/24/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 10:01:23 _____________________________________________________________________________________________________________________ | 5| 5| 7| 7| 7| 1| 7| 7| 6| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 5| 7| 6| 5| 5| DAY ON TEST | 6| 0| 3| 3| 3| 1| 3| 3| 1| 1| 3| 1| 3| 2| 3| 3| 3| 3| 3| 3| 1| 3| 9| 8| 4| | 6| 8| 5| 5| 5| 1| 5| 5| 7| 3| 5| 0| 4| 7| 6| 4| 4| 5| 6| 5| 0| 6| 9| 0| 7| _____________________________________________________________________________________________________________________| | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| FISCHER 344 RATS FEMALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| ANIMAL ID | 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 700 PPM | 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2| | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| _____________________________________________________________________________________________________________________| ENDOCRINE SYSTEM - cont | | | | | | __________________________________________________________________________| Adrenal Cortex | + + + + + + + + + + + + + + + + + + + + + + + + +| Degeneration, Cystic | 3 | Hyperplasia | 2 1 4 1 1 2 1 2 | Hypertrophy | 3 3 1 1 2| Vacuolization Cytoplasmic | 1 2 | __________________________________________________________________________| Adrenal Medulla | + + + + + + + + + + + + + + + + + + + + + + + + +| Hyperplasia | 2 2 2 | __________________________________________________________________________| Islets, Pancreatic | + + + + + + + + + + + + + + + + + + + + + + + + +| Hyperplasia | | __________________________________________________________________________| Parathyroid Gland | M + + + + + + + M + + + + + M + + + + + M + M + +| Hyperplasia | | __________________________________________________________________________| Pituitary Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| Pars Distalis, Hyperplasia | 2 3 2 3 | __________________________________________________________________________| Thyroid Gland | + + + + + + + + + + + + + + + + + + + + + + A + +| C-Cell, Hyperplasia | 1 1 1 1 1 1 1 3 2 1 2 1 1 4 2 1 2 | Follicular Cell, Hyperplasia | | _____________________________________________________________________________________________________________________| GENERAL BODY SYSTEM | | | | None | | _____________________________________________________________________________________________________________________| GENITAL SYSTEM | | | | __________________________________________________________________________| Clitoral Gland | + + M + + + + + + + + + + M + + + + + + + + + + +| Hyperplasia | | __________________________________________________________________________| Ovary | + + + + + + + + + + + + + + + + + + + + + + + + +| Cyst | 2 2 | __________________________________________________________________________| Uterus | + + + + + + + + + + + + + + + + + + + + + + + + +| _____________________________________________________________________________________________________________________| HEMATOPOIETIC SYSTEM | | | | __________________________________________________________________________| Bone Marrow | + + + + + + + + + + + + + + + + + + + + + + + + +| Myelofibrosis | | __________________________________________________________________________| Lymph Node | + + +| __________________________________________________________________________| Lymph Node, Bronchial | + + + M + M + M + M M + + + M + + + + + + + + + +| __________________________________________________________________________| Lymph Node, Mandibular | + + + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Lymph Node, Mesenteric | + + + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Lymph Node, Mediastinal | + + + + + M + + + + + M + + + + + + + + + + + + +| __________________________________________________________________________| Spleen | + + + + + + + + + + + + + + + + + + + + + + + + +| Fibrosis | 2 2 1 2 2 | Hemorrhage | 2 2| __________________________________________________________________________| Thymus | + + + M + + + M M + + + + + + + + + + + + M + + +| _____________________________________________________________________________________________________________________| INTEGUMENTARY SYSTEM | | | | __________________________________________________________________________| Mammary Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| Galactocele | 4 | _____________________________________________________________________________________________________________________| Page 17 NTP Experiment-Test: 05135-07 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOPRENE Date: 09/24/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 10:01:23 _____________________________________________________________________________________________________________________ | 5| 5| 7| 7| 7| 1| 7| 7| 6| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 5| 7| 6| 5| 5| DAY ON TEST | 6| 0| 3| 3| 3| 1| 3| 3| 1| 1| 3| 1| 3| 2| 3| 3| 3| 3| 3| 3| 1| 3| 9| 8| 4| | 6| 8| 5| 5| 5| 1| 5| 5| 7| 3| 5| 0| 4| 7| 6| 4| 4| 5| 6| 5| 0| 6| 9| 0| 7| _____________________________________________________________________________________________________________________| | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| FISCHER 344 RATS FEMALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| ANIMAL ID | 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 700 PPM | 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2| | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| _____________________________________________________________________________________________________________________| INTEGUMENTARY SYSTEM - cont | | | | __________________________________________________________________________| Skin | + + + + + + + + + + + + + + + + + + + + + + + + +| _____________________________________________________________________________________________________________________| MUSCULOSKELETAL SYSTEM | | | | __________________________________________________________________________| Bone | + + + + + + + + + + + + + + + + + + + + + + + + +| Hyperostosis | 1 3 4 2 3 3 | _____________________________________________________________________________________________________________________| NERVOUS SYSTEM | | | | __________________________________________________________________________| Brain | + + + + + + + + + + + + + + + + + + + + + + + + +| _____________________________________________________________________________________________________________________| RESPIRATORY SYSTEM | | | | __________________________________________________________________________| Larynx | + + + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Lung | + + + + + + + + + + + + + + + + + + + + + + + + +| Inflammation, Chronic Active | 4 1 1 1 1 1 1 1 1 1 1 1 | Alveolar Epithelium, Hyperplasia | 1 1 1 4 | __________________________________________________________________________| Nose | + + + + + + + + + + + + + + + + + + + + + + + + +| Foreign Body | X | Inflammation, Suppurative | 3 1 1 1 | Thrombosis | | Olfactory Epithelium, Atrophy | | Olfactory Epithelium, Hyperplasia | 3 | Olfactory Epithelium, Metaplasia | | Respiratory Epithelium, Metaplasia, | | Squamous | | __________________________________________________________________________| Trachea | + + + + + + + + + + + + + + + + + + + + + + + + +| _____________________________________________________________________________________________________________________| SPECIAL SENSES SYSTEM | | | | __________________________________________________________________________| Eye | + + | Cataract | 2 4 | Retina, Atrophy | 4 4 | __________________________________________________________________________| Zymbal's Gland | | _____________________________________________________________________________________________________________________| URINARY SYSTEM | | | | __________________________________________________________________________| Kidney | + + + + + + + + + + + + + + + + + + + + + + + + +| Infarct | | Nephropathy | 1 2 1 2 2 2 2 1 2 3 2 2 1 1 2 2 2 2 1 2 2 2 2 | __________________________________________________________________________| Urinary Bladder | + + + + + + + + + + + + + + + + + + + + + + + + +| Transitional Epithelium, Hyperplasia | | _____________________________________________________________________________________________________________________| Page 18 NTP Experiment-Test: 05135-07 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOPRENE Date: 09/24/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 10:01:23 __________________________________________________________________________________________________________________________________ | 7| 7| 5| 7| 4| 7| 7| 7| 7| 7| 7| 5| 7| 6| 6| 7| 7| 7| 7| 6| 7| 7| 6| 7| 7| | DAY ON TEST | 3| 3| 8| 3| 2| 2| 3| 3| 3| 3| 3| 3| 2| 1| 3| 3| 3| 1| 3| 0| 3| 0| 7| 3| 3| | | 5| 6| 1| 6| 7| 1| 4| 6| 5| 5| 4| 9| 3| 1| 8| 5| 6| 0| 6| 4| 5| 8| 2| 6| 5| T (*) | _____________________________________________________________________________________________________________________| | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| O | FISCHER 344 RATS FEMALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| T | ANIMAL ID | 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| A | 700 PPM | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5| L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | __________________________________________________________________________________________________________________________________ ALIMENTARY SYSTEM | | | | | | __________________________________________________________________________|____________| Esophagus | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | __________________________________________________________________________|____________| Intestine Large, Colon | + + + + + + + + + + + + + + + + + + + + + + + + +| 49 | __________________________________________________________________________|____________| Intestine Large, Rectum | + + + + + + + + + I + + + + + + + + + + + + + + +| 48 | __________________________________________________________________________|____________| Intestine Large, Cecum | + + + + + + + + + + + + + + + + + + + + + + + + +| 47 | __________________________________________________________________________|____________| Intestine Small, Duodenum | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | __________________________________________________________________________|____________| Intestine Small, Jejunum | + + + + + + + + + + + + + + + + + + + A + + + + +| 47 | __________________________________________________________________________|____________| Intestine Small, Ileum | + + + + + + + + + + + + + + + + + + + A + + + + +| 46 | Inflammation, Chronic Active | 3 | 1 3.0| __________________________________________________________________________|____________| Liver | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Angiectasis | 2 | 3 1.7| Basophilic Focus | X X X X X X X X X X X X X X X X| 33 | Clear Cell Focus | X X X X X | 10 | Eosinophilic Focus | | 1 | Fatty Change | 3 2 2 3 3 2 1 1 1 | 11 2.2| Hepatodiaphragmatic Nodule | X X | 5 | Mixed Cell Focus | X X X X | 10 | Regeneration | 2 2 | 2 2.0| Bile Duct, Hyperplasia | 2 2 2 2 2 | 9 1.8| Centrilobular, Necrosis | 3 1 1 1 1 | 8 1.3| Periportal, Infiltration Cellular, | | | Lymphocyte | 3 | 1 3.0| __________________________________________________________________________|____________| Mesentery | + + + + + | 8 | Fat, Necrosis | 2 2 2 2 2 | 8 2.1| __________________________________________________________________________|____________| Oral Mucosa | +| 1 | Pharyngeal, Hyperplasia, Squamous | 4| 1 4.0| __________________________________________________________________________|____________| Pancreas | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Atrophy | 2 2 2 2 3 1 | 11 1.8| Basophilic Focus | X X | 3 | __________________________________________________________________________|____________| Salivary Glands | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | __________________________________________________________________________|____________| Stomach, Forestomach | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Hyperplasia, Squamous | 2 | 1 2.0| Necrosis | 3 3 3 3 1 | 7 2.7| __________________________________________________________________________|____________| Stomach, Glandular | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Mineralization | | 1 1.0| Necrosis | 3 2 1 | 4 2.0| __________________________________________________________________________|____________| Tongue | + | 2 | Hyperplasia | | 1 1.0| __________________________________________________________________________|____________| Tooth | | 1 | Developmental Malformation | | 1 | __________________________________________________________________________________________________________________________________ * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade + : Tissue examined microscopically M : Missing tissue 1-4 : Lesion qualified as: X : Lesion present but not qualified A : Autolysis precludes examination 1) Minimal 3) Moderate I : Insufficient tissue BLANK : Not examined 2) Mild 4) Marked Page 19 NTP Experiment-Test: 05135-07 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOPRENE Date: 09/24/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 10:01:23 __________________________________________________________________________________________________________________________________ | 7| 7| 5| 7| 4| 7| 7| 7| 7| 7| 7| 5| 7| 6| 6| 7| 7| 7| 7| 6| 7| 7| 6| 7| 7| | DAY ON TEST | 3| 3| 8| 3| 2| 2| 3| 3| 3| 3| 3| 3| 2| 1| 3| 3| 3| 1| 3| 0| 3| 0| 7| 3| 3| | | 5| 6| 1| 6| 7| 1| 4| 6| 5| 5| 4| 9| 3| 1| 8| 5| 6| 0| 6| 4| 5| 8| 2| 6| 5| T (*) | _____________________________________________________________________________________________________________________| | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| O | FISCHER 344 RATS FEMALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| T | ANIMAL ID | 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| A | 700 PPM | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5| L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | __________________________________________________________________________________________________________________________________ ALIMENTARY SYSTEM - cont | | | | | | _____________________________________________________________________________________________________________________| | CARDIOVASCULAR SYSTEM | | | | | | __________________________________________________________________________|____________| Heart | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Cardiomyopathy | 1 2 2 2 2 2 1 2 1 2 1 3 1 1| 28 1.6| _____________________________________________________________________________________________________________________| | ENDOCRINE SYSTEM | | | | | | __________________________________________________________________________|____________| Adrenal Cortex | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Degeneration, Cystic | | 1 3.0| Hyperplasia | 2 2 2 2 3 2 2 2 2 2 1 2| 20 1.9| Hypertrophy | 2 2 2 | 8 2.0| Vacuolization Cytoplasmic | 2 2 | 4 1.8| __________________________________________________________________________|____________| Adrenal Medulla | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Hyperplasia | 2 2 2 2 2 1 | 9 1.9| __________________________________________________________________________|____________| Islets, Pancreatic | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Hyperplasia | 3 | 1 3.0| __________________________________________________________________________|____________| Parathyroid Gland | + + + + + + + + + + + + + + + + + + M + + + + + M| 43 | Hyperplasia | 2 | 1 2.0| __________________________________________________________________________|____________| Pituitary Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Pars Distalis, Hyperplasia | 2 3 3 | 7 2.6| __________________________________________________________________________|____________| Thyroid Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| 49 | C-Cell, Hyperplasia | 1 1 2 2 2 2 2 1 2 1 1 2 1 1 1 2 2 1 1 1 1| 38 1.5| Follicular Cell, Hyperplasia | 1 | 1 1.0| _____________________________________________________________________________________________________________________| | GENERAL BODY SYSTEM | | | | | | None | | | _____________________________________________________________________________________________________________________| | GENITAL SYSTEM | | | | | | __________________________________________________________________________|____________| Clitoral Gland | + + + + + + + + + + + + + + M + M + + + + + + + +| 46 | Hyperplasia | 2 2 | 2 2.0| __________________________________________________________________________|____________| Ovary | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Cyst | 2 2 3 | 5 2.2| __________________________________________________________________________|____________| Uterus | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | _____________________________________________________________________________________________________________________| | HEMATOPOIETIC SYSTEM | | | | | | __________________________________________________________________________|____________| Bone Marrow | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Myelofibrosis | 2 | 1 2.0| __________________________________________________________________________|____________| Lymph Node | + | 4 | __________________________________________________________________________|____________| Lymph Node, Bronchial | M + + + + + + M M M M M + + + M + M + M M + + + +| 34 | __________________________________________________________________________|____________| Lymph Node, Mandibular | + + + + + + + M + + + + + + + + + + + + + + + + +| 49 | __________________________________________________________________________________________________________________________________ * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade + : Tissue examined microscopically M : Missing tissue 1-4 : Lesion qualified as: X : Lesion present but not qualified A : Autolysis precludes examination 1) Minimal 3) Moderate I : Insufficient tissue BLANK : Not examined 2) Mild 4) Marked Page 20 NTP Experiment-Test: 05135-07 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOPRENE Date: 09/24/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 10:01:23 __________________________________________________________________________________________________________________________________ | 7| 7| 5| 7| 4| 7| 7| 7| 7| 7| 7| 5| 7| 6| 6| 7| 7| 7| 7| 6| 7| 7| 6| 7| 7| | DAY ON TEST | 3| 3| 8| 3| 2| 2| 3| 3| 3| 3| 3| 3| 2| 1| 3| 3| 3| 1| 3| 0| 3| 0| 7| 3| 3| | | 5| 6| 1| 6| 7| 1| 4| 6| 5| 5| 4| 9| 3| 1| 8| 5| 6| 0| 6| 4| 5| 8| 2| 6| 5| T (*) | _____________________________________________________________________________________________________________________| | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| O | FISCHER 344 RATS FEMALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| T | ANIMAL ID | 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| A | 700 PPM | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5| L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | __________________________________________________________________________________________________________________________________ HEMATOPOIETIC SYSTEM - cont | | | | | | __________________________________________________________________________|____________| Lymph Node, Mesenteric | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | __________________________________________________________________________|____________| Lymph Node, Mediastinal | + + + M + + + + + + M + + M + M M + + + M + + + +| 42 | __________________________________________________________________________|____________| Spleen | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Fibrosis | 1 3 1 2 2 | 10 1.8| Hemorrhage | 3 2 | 4 2.3| __________________________________________________________________________|____________| Thymus | + + M + + + M + M M M M + + + + + + + + + + + + M| 39 | _____________________________________________________________________________________________________________________| | INTEGUMENTARY SYSTEM | | | | | | __________________________________________________________________________|____________| Mammary Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Galactocele | | 1 4.0| __________________________________________________________________________|____________| Skin | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | _____________________________________________________________________________________________________________________| | MUSCULOSKELETAL SYSTEM | | | | | | __________________________________________________________________________|____________| Bone | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Hyperostosis | 2 3 2 2 4 | 11 2.6| _____________________________________________________________________________________________________________________| | NERVOUS SYSTEM | | | | | | __________________________________________________________________________|____________| Brain | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | _____________________________________________________________________________________________________________________| | RESPIRATORY SYSTEM | | | | | | __________________________________________________________________________|____________| Larynx | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | __________________________________________________________________________|____________| Lung | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Inflammation, Chronic Active | 1 1 1 1 1 1 1 1 1 1 1 1 1 | 25 1.1| Alveolar Epithelium, Hyperplasia | 1 2 1 1 1 2 | 10 1.5| __________________________________________________________________________|____________| Nose | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Foreign Body | | 1 | Inflammation, Suppurative | 1 1 2 1 | 8 1.4| Thrombosis | 2 3 3 | 3 2.7| Olfactory Epithelium, Atrophy | 1 2 | 2 1.5| Olfactory Epithelium, Hyperplasia | | 1 3.0| Olfactory Epithelium, Metaplasia | 2 | 1 2.0| Respiratory Epithelium, Metaplasia, | | | Squamous | 1 | 1 1.0| __________________________________________________________________________|____________| Trachea | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | _____________________________________________________________________________________________________________________| | SPECIAL SENSES SYSTEM | | | | | | __________________________________________________________________________|____________| Eye | + | 3 | Cataract | 3 | 3 3.0| Retina, Atrophy | 4 | 3 4.0| __________________________________________________________________________________________________________________________________ * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade + : Tissue examined microscopically M : Missing tissue 1-4 : Lesion qualified as: X : Lesion present but not qualified A : Autolysis precludes examination 1) Minimal 3) Moderate I : Insufficient tissue BLANK : Not examined 2) Mild 4) Marked Page 21 NTP Experiment-Test: 05135-07 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOPRENE Date: 09/24/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 10:01:23 __________________________________________________________________________________________________________________________________ | 7| 7| 5| 7| 4| 7| 7| 7| 7| 7| 7| 5| 7| 6| 6| 7| 7| 7| 7| 6| 7| 7| 6| 7| 7| | DAY ON TEST | 3| 3| 8| 3| 2| 2| 3| 3| 3| 3| 3| 3| 2| 1| 3| 3| 3| 1| 3| 0| 3| 0| 7| 3| 3| | | 5| 6| 1| 6| 7| 1| 4| 6| 5| 5| 4| 9| 3| 1| 8| 5| 6| 0| 6| 4| 5| 8| 2| 6| 5| T (*) | _____________________________________________________________________________________________________________________| | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| O | FISCHER 344 RATS FEMALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| T | ANIMAL ID | 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| A | 700 PPM | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5| L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | __________________________________________________________________________________________________________________________________ SPECIAL SENSES SYSTEM - cont | | | | | | __________________________________________________________________________|____________| Zymbal's Gland | + | 1 | _____________________________________________________________________________________________________________________| | URINARY SYSTEM | | | | | | __________________________________________________________________________|____________| Kidney | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Infarct | 2 | 1 2.0| Nephropathy | 3 2 1 2 1 2 2 2 2 2 3 1 1 3 1 2 1 2 4 2 2 2 3 2 2| 48 1.9| __________________________________________________________________________|____________| Urinary Bladder | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Transitional Epithelium, Hyperplasia | 3 | 1 3.0| __________________________________________________________________________________________________________________________________ * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade + : Tissue examined microscopically M : Missing tissue 1-4 : Lesion qualified as: X : Lesion present but not qualified A : Autolysis precludes examination 1) Minimal 3) Moderate I : Insufficient tissue BLANK : Not examined 2) Mild 4) Marked Page 22 NTP Experiment-Test: 05135-07 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOPRENE Date: 09/24/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 10:01:23 _____________________________________________________________________________________________________________________ | 7| 6| 7| 7| 4| 7| 4| 7| 6| 6| 6| 7| 7| 7| 7| 4| 7| 7| 4| 7| 7| 7| 7| 5| 7| DAY ON TEST | 1| 6| 3| 3| 3| 3| 1| 3| 2| 6| 2| 3| 3| 3| 3| 9| 3| 3| 8| 3| 3| 3| 3| 9| 3| | 4| 4| 6| 5| 2| 6| 5| 4| 1| 4| 5| 5| 5| 5| 5| 7| 5| 6| 2| 4| 5| 4| 5| 4| 4| _____________________________________________________________________________________________________________________| | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| FISCHER 344 RATS FEMALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| ANIMAL ID | 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7000 PPM | 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2| | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| _____________________________________________________________________________________________________________________| ALIMENTARY SYSTEM | | | | __________________________________________________________________________| Esophagus | + + + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Intestine Large, Colon | + + + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Intestine Large, Rectum | + + + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Intestine Large, Cecum | + + + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Intestine Small, Duodenum | + + + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Intestine Small, Jejunum | + + + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Intestine Small, Ileum | + + + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Liver | + + + + + + + + + + + + + + + + + + + + + + + + +| Angiectasis | 1 | Basophilic Focus | X X X X X X X X X X X X X X X X X X X X| Clear Cell Focus | X X X X X X | Degeneration, Cystic | 1 | Eosinophilic Focus | X X X | Fatty Change | 2 | Fibrosis | | Hepatodiaphragmatic Nodule | X X | Inflammation, Granulomatous | 2 | Mixed Cell Focus | X X X | Necrosis | 1 | Regeneration | 2 4 | Bile Duct, Hyperplasia | 1 2 1 2 | Centrilobular, Necrosis | | __________________________________________________________________________| Mesentery | + + + + + + | Fat, Necrosis | 2 2 2 3 2 2 | __________________________________________________________________________| Pancreas | + + + + + + + + + + + + + + + + + + + + + + + + +| Atrophy | 2 2 2 1 1 2 2 | Basophilic Focus | X X | Metaplasia, Hepatocyte | | __________________________________________________________________________| Salivary Glands | + + + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Stomach, Forestomach | + + + + + + + + + + + + + + + + + + + + + + + + +| Necrosis | 3 | __________________________________________________________________________| Stomach, Glandular | + + + + + + + + + + + + + + + + + + + + + + + + +| Necrosis | 2 | __________________________________________________________________________| Tooth | | Developmental Malformation | | _____________________________________________________________________________________________________________________| CARDIOVASCULAR SYSTEM | | | | __________________________________________________________________________| Heart | + + + + + + + + + + + + + + + + + + + + + + + + +| Cardiomyopathy | 1 1 1 2 1 1 1 1 1 1 1 2 2 2 1 1 2 1 2| Mineralization | | _____________________________________________________________________________________________________________________| ENDOCRINE SYSTEM | | | | __________________________________________________________________________| Adrenal Cortex | + + + + + + + + + + + + + + + + + + + + + + + + +| Atrophy | | _____________________________________________________________________________________________________________________| Page 23 NTP Experiment-Test: 05135-07 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOPRENE Date: 09/24/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 10:01:23 _____________________________________________________________________________________________________________________ | 7| 6| 7| 7| 4| 7| 4| 7| 6| 6| 6| 7| 7| 7| 7| 4| 7| 7| 4| 7| 7| 7| 7| 5| 7| DAY ON TEST | 1| 6| 3| 3| 3| 3| 1| 3| 2| 6| 2| 3| 3| 3| 3| 9| 3| 3| 8| 3| 3| 3| 3| 9| 3| | 4| 4| 6| 5| 2| 6| 5| 4| 1| 4| 5| 5| 5| 5| 5| 7| 5| 6| 2| 4| 5| 4| 5| 4| 4| _____________________________________________________________________________________________________________________| | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| FISCHER 344 RATS FEMALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| ANIMAL ID | 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7000 PPM | 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2| | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| _____________________________________________________________________________________________________________________| ENDOCRINE SYSTEM - cont | | | | Degeneration, Cystic | | Hyperplasia | 2 2 2 1 1 2 | Hypertrophy | 2 1 2 2 3 2 2| Necrosis | | Thrombosis | 1 | Vacuolization Cytoplasmic | 2 2 1 2 1 | __________________________________________________________________________| Adrenal Medulla | + + + + + + + + + + + + + + + + + + + + + + + + +| Hyperplasia | 1 1 2 2 | __________________________________________________________________________| Islets, Pancreatic | + + + + + + + + + + + + + + + + + + + + + + + + +| Hyperplasia | | __________________________________________________________________________| Parathyroid Gland | + + + M + + + + + + + M + + + + + + + + + + + + +| __________________________________________________________________________| Pituitary Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| Pars Distalis, Hyperplasia | 3 2 3 2 3 | __________________________________________________________________________| Thyroid Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| C-Cell, Hyperplasia | 2 1 1 1 2 1 1 1 1 1 1 1 2 2 1 1 1 2| _____________________________________________________________________________________________________________________| GENERAL BODY SYSTEM | | | | None | | _____________________________________________________________________________________________________________________| GENITAL SYSTEM | | | | __________________________________________________________________________| Clitoral Gland | + + + + + + + M + + + + + + + + + + + + + + + + +| Hyperplasia | 2 | __________________________________________________________________________| Ovary | + + + + + + + + + + + + + + + + + + + + + + + + +| Cyst | 2 2 2 | Inflammation, Granulomatous | 2 | __________________________________________________________________________| Uterus | + + + + + + + + + + + + + + + + + + + + + + + + +| _____________________________________________________________________________________________________________________| HEMATOPOIETIC SYSTEM | | | | __________________________________________________________________________| Bone Marrow | + + + + + + + + + + + + + + + + + + + + + + + + +| Atrophy | 2 | __________________________________________________________________________| Lymph Node | + | __________________________________________________________________________| Lymph Node, Bronchial | M + + M + M + + + + M + + + M M + + + + + + + + +| __________________________________________________________________________| Lymph Node, Mandibular | M + + + + + + + + + + M + + + M + + + M + + + + +| __________________________________________________________________________| Lymph Node, Mesenteric | + + + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Lymph Node, Mediastinal | + + + + M + + + + + M M + + + + + + + + + + + + +| __________________________________________________________________________| Spleen | + + + + + + + + + + + + + + + + + + + + + + + + +| Fibrosis | 2 2 | Hematopoietic Cell Proliferation | 3 | Necrosis | | __________________________________________________________________________| Thymus | + + + + + + + + + + + + + + + + + + + + + + M + +| _____________________________________________________________________________________________________________________| INTEGUMENTARY SYSTEM | | | | __________________________________________________________________________| Mammary Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| Hyperplasia | 2| _____________________________________________________________________________________________________________________| Page 24 NTP Experiment-Test: 05135-07 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOPRENE Date: 09/24/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 10:01:23 _____________________________________________________________________________________________________________________ | 7| 6| 7| 7| 4| 7| 4| 7| 6| 6| 6| 7| 7| 7| 7| 4| 7| 7| 4| 7| 7| 7| 7| 5| 7| DAY ON TEST | 1| 6| 3| 3| 3| 3| 1| 3| 2| 6| 2| 3| 3| 3| 3| 9| 3| 3| 8| 3| 3| 3| 3| 9| 3| | 4| 4| 6| 5| 2| 6| 5| 4| 1| 4| 5| 5| 5| 5| 5| 7| 5| 6| 2| 4| 5| 4| 5| 4| 4| _____________________________________________________________________________________________________________________| | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| FISCHER 344 RATS FEMALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| ANIMAL ID | 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7000 PPM | 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2| | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| _____________________________________________________________________________________________________________________| INTEGUMENTARY SYSTEM - cont | | | | __________________________________________________________________________| Skin | + + + + + + + + + + + + + + + + + + + + + + + + +| Inflammation, Chronic Active | 2 4 | _____________________________________________________________________________________________________________________| MUSCULOSKELETAL SYSTEM | | | | __________________________________________________________________________| Bone | + + + + + + + + + + + + + + + + + + + + + + + + +| Hyperostosis | 4 2 4 | _____________________________________________________________________________________________________________________| NERVOUS SYSTEM | | | | __________________________________________________________________________| Brain | + + + + + + + + + + + + + + + + + + + + + + + + +| Degeneration, Focal | | Gliosis | 2 | __________________________________________________________________________| Spinal Cord | | _____________________________________________________________________________________________________________________| RESPIRATORY SYSTEM | | | | __________________________________________________________________________| Larynx | + + + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Lung | + + + + + + + + + + + + + + + + + + + + + + + + +| Inflammation, Chronic Active | 1 1 2 1 1 2 1 1 1 4 3| Alveolar Epithelium, Hyperplasia | 1 1 1 1 2 | __________________________________________________________________________| Nose | + + + + + + + + + + + + + + + + + + + + + + + + +| Foreign Body | X X X | Inflammation, Suppurative | 1 1 2 1 2 2 | Thrombosis | | Olfactory Epithelium, Atrophy | 2 | Olfactory Epithelium, Metaplasia | 2 | Respiratory Epithelium, Hyperplasia | 1 | Respiratory Epithelium, Metaplasia, | | Squamous | 1 | __________________________________________________________________________| Pleura | + | __________________________________________________________________________| Trachea | + + + + + + + + + + + + + + + + + + + + + + + + +| _____________________________________________________________________________________________________________________| SPECIAL SENSES SYSTEM | | | | __________________________________________________________________________| Eye | + + | Cataract | 4 2 | Degeneration | | Hemorrhage | | Retina, Atrophy | 4 3 | _____________________________________________________________________________________________________________________| URINARY SYSTEM | | | | __________________________________________________________________________| Kidney | + + + + + + + + + + + + + + + + + + + + + + + + +| Cyst | | Nephropathy | 2 2 2 3 1 2 1 2 1 1 2 2 3 2 1 2 2 2 3 3 2 1 2| Renal Tubule, Necrosis | | Transitional Epithelium, Hyperplasia | | __________________________________________________________________________| Urinary Bladder | + + + + + + + + + + + + + + + + + + + + + + + + +| _____________________________________________________________________________________________________________________| Page 25 NTP Experiment-Test: 05135-07 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOPRENE Date: 09/24/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 10:01:23 __________________________________________________________________________________________________________________________________ | 6| 7| 7| 6| 7| 7| 7| 7| 7| 7| 7| 7| 5| 6| 6| 1| 7| 7| 7| 7| 6| 4| 7| 7| 4| | DAY ON TEST | 5| 3| 3| 8| 3| 3| 1| 3| 2| 3| 3| 0| 9| 3| 5| 1| 1| 3| 3| 3| 8| 6| 3| 3| 9| | | 2| 6| 6| 1| 6| 5| 3| 5| 7| 4| 4| 9| 4| 0| 3| 4| 3| 5| 6| 5| 1| 4| 4| 5| 0| T (*) | _____________________________________________________________________________________________________________________| | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| O | FISCHER 344 RATS FEMALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| T | ANIMAL ID | 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| A | 7000 PPM | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5| L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | __________________________________________________________________________________________________________________________________ ALIMENTARY SYSTEM | | | | | | __________________________________________________________________________|____________| Esophagus | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | __________________________________________________________________________|____________| Intestine Large, Colon | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | __________________________________________________________________________|____________| Intestine Large, Rectum | + + + + + + + I + + + + + + + + + + + + + + + + +| 49 | __________________________________________________________________________|____________| Intestine Large, Cecum | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | __________________________________________________________________________|____________| Intestine Small, Duodenum | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | __________________________________________________________________________|____________| Intestine Small, Jejunum | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | __________________________________________________________________________|____________| Intestine Small, Ileum | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | __________________________________________________________________________|____________| Liver | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Angiectasis | 2 2 2 | 4 1.8| Basophilic Focus | X X X X X X X X X X X X X | 33 | Clear Cell Focus | X X X X X | 11 | Degeneration, Cystic | | 1 1.0| Eosinophilic Focus | X | 4 | Fatty Change | 2 2 2 3 1 2 2 2| 9 2.0| Fibrosis | 1 | 1 1.0| Hepatodiaphragmatic Nodule | X X X X| 6 | Inflammation, Granulomatous | | 1 2.0| Mixed Cell Focus | X X | 5 | Necrosis | | 1 1.0| Regeneration | 2| 3 2.7| Bile Duct, Hyperplasia | 2 2 1 2 1 2| 10 1.6| Centrilobular, Necrosis | 1 1 1 | 3 1.0| __________________________________________________________________________|____________| Mesentery | + + + + + | 11 | Fat, Necrosis | 2 3 2 2 2 | 11 2.2| __________________________________________________________________________|____________| Pancreas | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Atrophy | 1 2 1 2 1 2 3 1 2 1 2 2 1| 20 1.7| Basophilic Focus | X | 3 | Metaplasia, Hepatocyte | 2 | 1 2.0| __________________________________________________________________________|____________| Salivary Glands | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | __________________________________________________________________________|____________| Stomach, Forestomach | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Necrosis | 4 2 | 3 3.0| __________________________________________________________________________|____________| Stomach, Glandular | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Necrosis | 2 4 2 3 3| 6 2.7| __________________________________________________________________________|____________| Tooth | + | 1 | Developmental Malformation | X | 1 | _____________________________________________________________________________________________________________________| | CARDIOVASCULAR SYSTEM | | | | | | __________________________________________________________________________|____________| Heart | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Cardiomyopathy | 2 2 1 3 2 2 2 2 1 1 2 2 2 1 2 1 1 1 | 37 1.5| __________________________________________________________________________________________________________________________________ * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade + : Tissue examined microscopically M : Missing tissue 1-4 : Lesion qualified as: X : Lesion present but not qualified A : Autolysis precludes examination 1) Minimal 3) Moderate I : Insufficient tissue BLANK : Not examined 2) Mild 4) Marked Page 26 NTP Experiment-Test: 05135-07 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOPRENE Date: 09/24/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 10:01:23 __________________________________________________________________________________________________________________________________ | 6| 7| 7| 6| 7| 7| 7| 7| 7| 7| 7| 7| 5| 6| 6| 1| 7| 7| 7| 7| 6| 4| 7| 7| 4| | DAY ON TEST | 5| 3| 3| 8| 3| 3| 1| 3| 2| 3| 3| 0| 9| 3| 5| 1| 1| 3| 3| 3| 8| 6| 3| 3| 9| | | 2| 6| 6| 1| 6| 5| 3| 5| 7| 4| 4| 9| 4| 0| 3| 4| 3| 5| 6| 5| 1| 4| 4| 5| 0| T (*) | _____________________________________________________________________________________________________________________| | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| O | FISCHER 344 RATS FEMALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| T | ANIMAL ID | 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| A | 7000 PPM | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5| L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | __________________________________________________________________________________________________________________________________ CARDIOVASCULAR SYSTEM - cont | | | | | | Mineralization | 2 | 1 2.0| _____________________________________________________________________________________________________________________| | ENDOCRINE SYSTEM | | | | | | __________________________________________________________________________|____________| Adrenal Cortex | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Atrophy | 2 | 1 2.0| Degeneration, Cystic | 2 2 2| 3 2.0| Hyperplasia | 2 2 2 2 2 2 2 | 13 1.8| Hypertrophy | 2 2 2 2 2 2 3 | 14 2.1| Necrosis | 3| 1 3.0| Thrombosis | | 1 1.0| Vacuolization Cytoplasmic | 2 | 6 1.7| __________________________________________________________________________|____________| Adrenal Medulla | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Hyperplasia | 2 1 2 2 1 | 9 1.6| __________________________________________________________________________|____________| Islets, Pancreatic | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Hyperplasia | 4 2 | 2 3.0| __________________________________________________________________________|____________| Parathyroid Gland | + + + + M + + + + + + + + + + + + + + + M M + + +| 45 | __________________________________________________________________________|____________| Pituitary Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Pars Distalis, Hyperplasia | 3 2 3 2 2 3 1| 12 2.4| __________________________________________________________________________|____________| Thyroid Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | C-Cell, Hyperplasia | 1 1 2 1 1 1 4 2 1 1 2 3 1 2 1 1 1 2 1 2 3 1| 40 1.5| _____________________________________________________________________________________________________________________| | GENERAL BODY SYSTEM | | | | | | None | | | _____________________________________________________________________________________________________________________| | GENITAL SYSTEM | | | | | | __________________________________________________________________________|____________| Clitoral Gland | + + + M + + + + + + + + + + + + + + + + + + + + +| 48 | Hyperplasia | 2 2 | 3 2.0| __________________________________________________________________________|____________| Ovary | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Cyst | 2 1 3| 6 2.0| Inflammation, Granulomatous | 3 | 2 2.5| __________________________________________________________________________|____________| Uterus | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | _____________________________________________________________________________________________________________________| | HEMATOPOIETIC SYSTEM | | | | | | __________________________________________________________________________|____________| Bone Marrow | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Atrophy | | 1 2.0| __________________________________________________________________________|____________| Lymph Node | + | 2 | __________________________________________________________________________|____________| Lymph Node, Bronchial | + M + M + + + + M + + + + + + M + M + M M M M + +| 35 | __________________________________________________________________________|____________| Lymph Node, Mandibular | + + + + + + + + + + + + + + + + + + + + + + + + +| 46 | __________________________________________________________________________|____________| Lymph Node, Mesenteric | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | __________________________________________________________________________________________________________________________________ * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade + : Tissue examined microscopically M : Missing tissue 1-4 : Lesion qualified as: X : Lesion present but not qualified A : Autolysis precludes examination 1) Minimal 3) Moderate I : Insufficient tissue BLANK : Not examined 2) Mild 4) Marked Page 27 NTP Experiment-Test: 05135-07 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOPRENE Date: 09/24/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 10:01:23 __________________________________________________________________________________________________________________________________ | 6| 7| 7| 6| 7| 7| 7| 7| 7| 7| 7| 7| 5| 6| 6| 1| 7| 7| 7| 7| 6| 4| 7| 7| 4| | DAY ON TEST | 5| 3| 3| 8| 3| 3| 1| 3| 2| 3| 3| 0| 9| 3| 5| 1| 1| 3| 3| 3| 8| 6| 3| 3| 9| | | 2| 6| 6| 1| 6| 5| 3| 5| 7| 4| 4| 9| 4| 0| 3| 4| 3| 5| 6| 5| 1| 4| 4| 5| 0| T (*) | _____________________________________________________________________________________________________________________| | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| O | FISCHER 344 RATS FEMALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| T | ANIMAL ID | 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| A | 7000 PPM | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5| L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | __________________________________________________________________________________________________________________________________ HEMATOPOIETIC SYSTEM - cont | | | | | | __________________________________________________________________________|____________| Lymph Node, Mediastinal | + + + + + + + + + + + + + + M + + M + M + + + + +| 44 | __________________________________________________________________________|____________| Spleen | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Fibrosis | 2 2 | 4 2.0| Hematopoietic Cell Proliferation | | 1 3.0| Necrosis | 2| 1 2.0| __________________________________________________________________________|____________| Thymus | + + + + + + + + + + + + + M + + + + + M + M + + +| 46 | _____________________________________________________________________________________________________________________| | INTEGUMENTARY SYSTEM | | | | | | __________________________________________________________________________|____________| Mammary Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Hyperplasia | 2 | 2 2.0| __________________________________________________________________________|____________| Skin | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Inflammation, Chronic Active | | 2 3.0| _____________________________________________________________________________________________________________________| | MUSCULOSKELETAL SYSTEM | | | | | | __________________________________________________________________________|____________| Bone | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Hyperostosis | 2 2 3 2 2| 8 2.6| _____________________________________________________________________________________________________________________| | NERVOUS SYSTEM | | | | | | __________________________________________________________________________|____________| Brain | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Degeneration, Focal | 2| 1 2.0| Gliosis | | 1 2.0| __________________________________________________________________________|____________| Spinal Cord | +| 1 | _____________________________________________________________________________________________________________________| | RESPIRATORY SYSTEM | | | | | | __________________________________________________________________________|____________| Larynx | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | __________________________________________________________________________|____________| Lung | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Inflammation, Chronic Active | 1 1 1 1 4 1 1 1 | 19 1.5| Alveolar Epithelium, Hyperplasia | 1 2 1 | 8 1.3| __________________________________________________________________________|____________| Nose | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Foreign Body | X | 4 | Inflammation, Suppurative | 2 1 2 2 2 2 | 12 1.7| Thrombosis | 3 | 1 3.0| Olfactory Epithelium, Atrophy | 2 | 2 2.0| Olfactory Epithelium, Metaplasia | | 1 2.0| Respiratory Epithelium, Hyperplasia | | 1 1.0| Respiratory Epithelium, Metaplasia, | | | Squamous | | 1 1.0| __________________________________________________________________________|____________| Pleura | | 1 | __________________________________________________________________________|____________| Trachea | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | __________________________________________________________________________________________________________________________________ * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade + : Tissue examined microscopically M : Missing tissue 1-4 : Lesion qualified as: X : Lesion present but not qualified A : Autolysis precludes examination 1) Minimal 3) Moderate I : Insufficient tissue BLANK : Not examined 2) Mild 4) Marked Page 28 NTP Experiment-Test: 05135-07 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOPRENE Date: 09/24/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 10:01:23 __________________________________________________________________________________________________________________________________ | 6| 7| 7| 6| 7| 7| 7| 7| 7| 7| 7| 7| 5| 6| 6| 1| 7| 7| 7| 7| 6| 4| 7| 7| 4| | DAY ON TEST | 5| 3| 3| 8| 3| 3| 1| 3| 2| 3| 3| 0| 9| 3| 5| 1| 1| 3| 3| 3| 8| 6| 3| 3| 9| | | 2| 6| 6| 1| 6| 5| 3| 5| 7| 4| 4| 9| 4| 0| 3| 4| 3| 5| 6| 5| 1| 4| 4| 5| 0| T (*) | _____________________________________________________________________________________________________________________| | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| O | FISCHER 344 RATS FEMALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| T | ANIMAL ID | 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| A | 7000 PPM | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5| L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | __________________________________________________________________________________________________________________________________ RESPIRATORY SYSTEM - cont | | | | | | _____________________________________________________________________________________________________________________| | SPECIAL SENSES SYSTEM | | | | | | __________________________________________________________________________|____________| Eye | + + + + | 6 | Cataract | 2 2 | 4 2.5| Degeneration | 3 | 1 3.0| Hemorrhage | 3 | 1 3.0| Retina, Atrophy | 3 3 | 4 3.3| _____________________________________________________________________________________________________________________| | URINARY SYSTEM | | | | | | __________________________________________________________________________|____________| Kidney | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Cyst | 2 | 1 2.0| Nephropathy | 2 2 2 3 2 2 2 2 3 2 3 2 1 2 4 3 2 2 2 1 1 2 2 2| 47 2.0| Renal Tubule, Necrosis | 2 | 1 2.0| Transitional Epithelium, Hyperplasia | 2 | 1 2.0| __________________________________________________________________________|____________| Urinary Bladder | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | __________________________________________________________________________________________________________________________________ * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade + : Tissue examined microscopically M : Missing tissue 1-4 : Lesion qualified as: X : Lesion present but not qualified A : Autolysis precludes examination 1) Minimal 3) Moderate I : Insufficient tissue BLANK : Not examined 2) Mild 4) Marked Page 29 NTP Experiment-Test: 05135-07 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOPRENE Date: 09/24/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 10:01:23 _____________________________________________________________________________________________________________________ | 6| 3| 4| 7| 7| 7| 6| 5| 6| 7| 7| 2| 7| 7| 6| 7| 4| 4| 5| 6| 4| 7| 5| 7| 5| DAY ON TEST | 5| 4| 5| 3| 3| 3| 7| 1| 5| 3| 2| 3| 3| 0| 0| 2| 6| 8| 9| 8| 4| 3| 4| 3| 3| | 2| 2| 4| 3| 3| 4| 2| 8| 2| 3| 3| 5| 3| 4| 0| 8| 8| 2| 2| 6| 0| 3| 7| 3| 9| _____________________________________________________________________________________________________________________| | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| FISCHER 344 RATS MALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| ANIMAL ID | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| CONTROL | 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2| | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| _____________________________________________________________________________________________________________________| ALIMENTARY SYSTEM | | | | __________________________________________________________________________| Esophagus | + + + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Intestine Large, Colon | + + + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Intestine Large, Rectum | + + + + + + + + + + + + + A + + + + + + + + + + +| __________________________________________________________________________| Intestine Large, Cecum | + + + + + + + + + + + + + A + + + + + + + + + + +| Inflammation, Acute | | __________________________________________________________________________| Intestine Small, Duodenum | + + + + + + + + + + + + + + + + + + + + + + + + +| Inflammation, Acute | | Necrosis | 2 | __________________________________________________________________________| Intestine Small, Jejunum | + + + + + + + + + + + + + A + + + + + + + + + + +| __________________________________________________________________________| Intestine Small, Ileum | + + + + + + + + + + + + + A + + + + + + + + + + +| __________________________________________________________________________| Liver | + + + + + + + + + + + + + + + + + + + + + + + + +| Angiectasis | 2 | Basophilic Focus | X X X X X X X X X X| Clear Cell Focus | X X | Degeneration, Cystic | 2 2 1 4 | Eosinophilic Focus | X | Fatty Change | 2 2 2 3 1 1 1 2 1 3| Hematopoietic Cell Proliferation | 2 | Hepatodiaphragmatic Nodule | | Mineralization | | Regeneration | | Bile Duct, Hyperplasia | 2 2 2 2 1 1 3 2 2 2 1 1 | Centrilobular, Necrosis | 3 2 | __________________________________________________________________________| Mesentery | + + + | Fat, Hemorrhage | | Fat, Necrosis | 2 2 2 | __________________________________________________________________________| Oral Mucosa | + | __________________________________________________________________________| Pancreas | + + + + + + + + + + + + + + + + + + + + + + + + +| Atrophy | 2 2 3 2 3 2 2 1 3 | Basophilic Focus | | Hyperplasia | 3 2 | __________________________________________________________________________| Salivary Glands | + + + + + + + + + + + + + + + + + + + + + + + + +| Atrophy | | __________________________________________________________________________| Stomach, Forestomach | + + + + + + + + + + + + + + + + + + + + + + + + +| Inflammation, Acute | 1 | Necrosis | 2 3 3 3 2 3 3 | __________________________________________________________________________| Stomach, Glandular | + + + + + + + + + + + + + + + + + + + + + + + + +| Mineralization | 1 3| Necrosis | 1 3| _____________________________________________________________________________________________________________________| CARDIOVASCULAR SYSTEM | | | | __________________________________________________________________________| Blood Vessel | | Inflammation | | Endothelium, Hyperplasia | | _____________________________________________________________________________________________________________________| Page 30 NTP Experiment-Test: 05135-07 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOPRENE Date: 09/24/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 10:01:23 _____________________________________________________________________________________________________________________ | 6| 3| 4| 7| 7| 7| 6| 5| 6| 7| 7| 2| 7| 7| 6| 7| 4| 4| 5| 6| 4| 7| 5| 7| 5| DAY ON TEST | 5| 4| 5| 3| 3| 3| 7| 1| 5| 3| 2| 3| 3| 0| 0| 2| 6| 8| 9| 8| 4| 3| 4| 3| 3| | 2| 2| 4| 3| 3| 4| 2| 8| 2| 3| 3| 5| 3| 4| 0| 8| 8| 2| 2| 6| 0| 3| 7| 3| 9| _____________________________________________________________________________________________________________________| | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| FISCHER 344 RATS MALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| ANIMAL ID | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| CONTROL | 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2| | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| _____________________________________________________________________________________________________________________| CARDIOVASCULAR SYSTEM - cont | | | | __________________________________________________________________________| Heart | + + + + + + + + + + + + + + + + + + + + + + + + +| Cardiomyopathy | 2 1 1 3 2 2 1 1 2 2 1 3 2 3 1 1 2 2 1 2 2| Artery, Mineralization | | Atrium, Thrombosis | 4 2 | _____________________________________________________________________________________________________________________| ENDOCRINE SYSTEM | | | | __________________________________________________________________________| Adrenal Cortex | + + + + + + + + + + + + + + + + + + + + + + + + +| Atrophy | | Hyperplasia | 2 1 2 2 2 2 1 2 1 2 2| Hypertrophy | 2 2 2 2 | Vacuolization Cytoplasmic | 2 | __________________________________________________________________________| Adrenal Medulla | + + + + + + + + + + + + + + + + + + + + + + + + +| Hyperplasia | 4 2 2 1 2 2 1 3 2 | __________________________________________________________________________| Islets, Pancreatic | + + + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Parathyroid Gland | + + + + + + + + + + + M + + + + + + + + + + + + +| Hyperplasia | 2 2| __________________________________________________________________________| Pituitary Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| Pars Distalis, Hyperplasia | 3 3 2 | __________________________________________________________________________| Thyroid Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| C-Cell, Hyperplasia | 1 1 1 2 1 2 1 3 1 1 1 1 | Follicular Cell, Hyperplasia | | _____________________________________________________________________________________________________________________| GENERAL BODY SYSTEM | | | | __________________________________________________________________________| Peritoneum | + | __________________________________________________________________________| Tissue NOS | + | _____________________________________________________________________________________________________________________| GENITAL SYSTEM | | | | __________________________________________________________________________| Epididymis | + + + + + + + + + + + + + + + + + + + + + + + + +| Granuloma Sperm | | __________________________________________________________________________| Preputial Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| Inflammation, Chronic Active | 2 4 | __________________________________________________________________________| Prostate | + + + + + + + + + + + + + + + + + + + + + + + + +| Hyperplasia | 2 2 2 | Inflammation, Chronic Active | 4 4 | __________________________________________________________________________| Seminal Vesicle | + + + + + + + + + + + + + A + + + + + + + + + + +| Inflammation, Chronic Active | 2 | __________________________________________________________________________| Testes | + + + + + + + + + + + + + + + + + + + + + + + + +| Atrophy | 3 | Artery, Inflammation, Chronic Active | 3 3 2 | Interstitial Cell, Hyperplasia | 2 4 2 2 4 1 2 | _____________________________________________________________________________________________________________________| HEMATOPOIETIC SYSTEM | | | | __________________________________________________________________________| Bone Marrow | + + + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Lymph Node | + + + | _____________________________________________________________________________________________________________________| Page 31 NTP Experiment-Test: 05135-07 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOPRENE Date: 09/24/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 10:01:23 _____________________________________________________________________________________________________________________ | 6| 3| 4| 7| 7| 7| 6| 5| 6| 7| 7| 2| 7| 7| 6| 7| 4| 4| 5| 6| 4| 7| 5| 7| 5| DAY ON TEST | 5| 4| 5| 3| 3| 3| 7| 1| 5| 3| 2| 3| 3| 0| 0| 2| 6| 8| 9| 8| 4| 3| 4| 3| 3| | 2| 2| 4| 3| 3| 4| 2| 8| 2| 3| 3| 5| 3| 4| 0| 8| 8| 2| 2| 6| 0| 3| 7| 3| 9| _____________________________________________________________________________________________________________________| | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| FISCHER 344 RATS MALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| ANIMAL ID | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| CONTROL | 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2| | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| _____________________________________________________________________________________________________________________| HEMATOPOIETIC SYSTEM - cont | | | | Iliac, Ectasia | 3 | __________________________________________________________________________| Lymph Node, Bronchial | + M M + + + + + + + + + + + + + + + + + M + + + +| __________________________________________________________________________| Lymph Node, Mandibular | + + + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Lymph Node, Mesenteric | + + + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Lymph Node, Mediastinal | + + + + + + + + M + + + + + + + + + + + + + + + +| __________________________________________________________________________| Spleen | + + + + + + + + + + + + + + + + + + + + + + + + +| Fibrosis | 2 1 2 1 | Hematopoietic Cell Proliferation | 2 2 | Hemorrhage | | Necrosis | 2 | __________________________________________________________________________| Thymus | + + + + + + + + M + + + + + + + + + + + + + + + +| Cyst | | _____________________________________________________________________________________________________________________| INTEGUMENTARY SYSTEM | | | | __________________________________________________________________________| Mammary Gland | + M + + M + M + + + + + + M + + + M + + + + + + +| Galactocele | 3 | Inflammation, Chronic | | __________________________________________________________________________| Skin | + + + + + + + + + + + + + + + + + + + + + + + + +| Cyst Epithelial Inclusion | | _____________________________________________________________________________________________________________________| MUSCULOSKELETAL SYSTEM | | | | __________________________________________________________________________| Bone | + + + + + + + + + + + + + + + + + + + + + + + + +| Fibrous Osteodystrophy | 1| _____________________________________________________________________________________________________________________| NERVOUS SYSTEM | | | | __________________________________________________________________________| Brain | + + + + + + + + + + + + + + + + + + + + + + + + +| Degeneration, Focal | | _____________________________________________________________________________________________________________________| RESPIRATORY SYSTEM | | | | __________________________________________________________________________| Larynx | + + + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Lung | + + + + + + + + + + + + + + + + + + + + + + + +| Inflammation, Chronic Active | 1 1 2 1 2 2 2 4 3 1 | Alveolar Epithelium, Hyperplasia | 1 1 1 1 | __________________________________________________________________________| Nose | + + + + + + + + + + + + + + + + + + + + + + + + +| Foreign Body | | Inflammation, Suppurative | 1 1 | Thrombosis | 1 | Olfactory Epithelium, Atrophy | | Olfactory Epithelium, Metaplasia | 1 | Olfactory Epithelium, Metaplasia, | | Squamous | | __________________________________________________________________________| Trachea | + + + + + + + + + + + + + + + + + + + + + + + + +| _____________________________________________________________________________________________________________________| SPECIAL SENSES SYSTEM | | | | _____________________________________________________________________________________________________________________| Page 32 NTP Experiment-Test: 05135-07 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOPRENE Date: 09/24/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 10:01:23 _____________________________________________________________________________________________________________________ | 6| 3| 4| 7| 7| 7| 6| 5| 6| 7| 7| 2| 7| 7| 6| 7| 4| 4| 5| 6| 4| 7| 5| 7| 5| DAY ON TEST | 5| 4| 5| 3| 3| 3| 7| 1| 5| 3| 2| 3| 3| 0| 0| 2| 6| 8| 9| 8| 4| 3| 4| 3| 3| | 2| 2| 4| 3| 3| 4| 2| 8| 2| 3| 3| 5| 3| 4| 0| 8| 8| 2| 2| 6| 0| 3| 7| 3| 9| _____________________________________________________________________________________________________________________| | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| FISCHER 344 RATS MALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| ANIMAL ID | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| CONTROL | 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2| | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| _____________________________________________________________________________________________________________________| SPECIAL SENSES SYSTEM - cont | | | | __________________________________________________________________________| Eye | | Cataract | | Retina, Atrophy | | _____________________________________________________________________________________________________________________| URINARY SYSTEM | | | | __________________________________________________________________________| Kidney | + + + + + + + + + + + + + + + + + + + + + + + + +| Cyst | | Infarct | | Nephropathy | 3 1 1 3 3 3 3 3 3 2 4 1 2 4 2 3 2 2 2 4 2 3 3 3 4| __________________________________________________________________________| Urinary Bladder | + + + + + + + + + + + + + + + + + + + + + + + + +| Inflammation, Chronic Active | | Transitional Epithelium, Hyperplasia | 1 | _____________________________________________________________________________________________________________________| Page 33 NTP Experiment-Test: 05135-07 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOPRENE Date: 09/24/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 10:01:23 __________________________________________________________________________________________________________________________________ | 5| 6| 7| 6| 5| 7| 7| 7| 7| 7| 5| 6| 7| 7| 5| 7| 7| 7| 6| 7| 5| 6| 7| 7| 6| | DAY ON TEST | 5| 7| 3| 5| 9| 3| 3| 3| 3| 2| 5| 9| 3| 3| 6| 2| 3| 3| 0| 2| 0| 7| 3| 3| 6| | | 5| 5| 3| 9| 7| 4| 3| 3| 4| 1| 1| 4| 4| 4| 4| 3| 4| 3| 4| 4| 2| 1| 3| 3| 4| T (*) | _____________________________________________________________________________________________________________________| | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| O | FISCHER 344 RATS MALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| T | ANIMAL ID | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| A | CONTROL | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5| L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | __________________________________________________________________________________________________________________________________ ALIMENTARY SYSTEM | | | | | | __________________________________________________________________________|____________| Esophagus | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | __________________________________________________________________________|____________| Intestine Large, Colon | + + + A + + + + + + + + + + + + + + + + + + + + +| 49 | __________________________________________________________________________|____________| Intestine Large, Rectum | + A + A + + + + + + + + + + + + + + + + + + + + +| 47 | __________________________________________________________________________|____________| Intestine Large, Cecum | + A + + + + + + + + + + + + + + + + + + + + + + +| 48 | Inflammation, Acute | 2 | 1 2.0| __________________________________________________________________________|____________| Intestine Small, Duodenum | + A + + + + + + + + + + + + + + + + + + + + + + +| 49 | Inflammation, Acute | 2 | 1 2.0| Necrosis | | 1 2.0| __________________________________________________________________________|____________| Intestine Small, Jejunum | + A + A + + + + + + + A + + + + + + + + + + + + +| 46 | __________________________________________________________________________|____________| Intestine Small, Ileum | + A + A + + + + + + + A + + + + + + + + + + + + +| 46 | __________________________________________________________________________|____________| Liver | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Angiectasis | 2 | 2 2.0| Basophilic Focus | X X X X X X X | 17 | Clear Cell Focus | X X X X | 6 | Degeneration, Cystic | 2 1 2 2 1 | 9 1.9| Eosinophilic Focus | X | 2 | Fatty Change | 2 1 1 2 3| 15 1.8| Hematopoietic Cell Proliferation | | 1 2.0| Hepatodiaphragmatic Nodule | X | 1 | Mineralization | 2 | 1 2.0| Regeneration | 2 2 | 2 2.0| Bile Duct, Hyperplasia | 1 1 2 3 2 3 1 2 3 1 1 1 2 | 25 1.8| Centrilobular, Necrosis | 2 1 2 4 1 | 7 2.1| __________________________________________________________________________|____________| Mesentery | + + + + +| 8 | Fat, Hemorrhage | 2| 1 2.0| Fat, Necrosis | 2 2 2 | 6 2.0| __________________________________________________________________________|____________| Oral Mucosa | | 1 | __________________________________________________________________________|____________| Pancreas | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Atrophy | 2 1 2 3 2 2 2 3 1 | 18 2.1| Basophilic Focus | X | 1 | Hyperplasia | 2 3 | 4 2.5| __________________________________________________________________________|____________| Salivary Glands | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Atrophy | 2 | 1 2.0| __________________________________________________________________________|____________| Stomach, Forestomach | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Inflammation, Acute | | 1 1.0| Necrosis | 3 1 2 4 1 4 3| 14 2.6| __________________________________________________________________________|____________| Stomach, Glandular | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Mineralization | 1 1 1| 5 1.4| Necrosis | 1 2 2 3| 6 2.0| __________________________________________________________________________________________________________________________________ * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade + : Tissue examined microscopically M : Missing tissue 1-4 : Lesion qualified as: X : Lesion present but not qualified A : Autolysis precludes examination 1) Minimal 3) Moderate I : Insufficient tissue BLANK : Not examined 2) Mild 4) Marked Page 34 NTP Experiment-Test: 05135-07 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOPRENE Date: 09/24/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 10:01:23 __________________________________________________________________________________________________________________________________ | 5| 6| 7| 6| 5| 7| 7| 7| 7| 7| 5| 6| 7| 7| 5| 7| 7| 7| 6| 7| 5| 6| 7| 7| 6| | DAY ON TEST | 5| 7| 3| 5| 9| 3| 3| 3| 3| 2| 5| 9| 3| 3| 6| 2| 3| 3| 0| 2| 0| 7| 3| 3| 6| | | 5| 5| 3| 9| 7| 4| 3| 3| 4| 1| 1| 4| 4| 4| 4| 3| 4| 3| 4| 4| 2| 1| 3| 3| 4| T (*) | _____________________________________________________________________________________________________________________| | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| O | FISCHER 344 RATS MALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| T | ANIMAL ID | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| A | CONTROL | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5| L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | __________________________________________________________________________________________________________________________________ ALIMENTARY SYSTEM - cont | | | | | | _____________________________________________________________________________________________________________________| | CARDIOVASCULAR SYSTEM | | | | | | __________________________________________________________________________|____________| Blood Vessel | + | 1 | Inflammation | 3 | 1 3.0| Endothelium, Hyperplasia | 4 | 1 4.0| __________________________________________________________________________|____________| Heart | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Cardiomyopathy | 1 3 3 1 2 3 2 2 1 2 2 3 2 2 2 2 1 2 2 3| 41 1.9| Artery, Mineralization | 1 | 1 1.0| Atrium, Thrombosis | 4 4 | 4 3.5| _____________________________________________________________________________________________________________________| | ENDOCRINE SYSTEM | | | | | | __________________________________________________________________________|____________| Adrenal Cortex | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Atrophy | 4 | 1 4.0| Hyperplasia | 2 2 2 2 2 3 3 2 2 2 2 2 | 23 2.0| Hypertrophy | 2 2 2 2 | 8 2.0| Vacuolization Cytoplasmic | 2 | 2 2.0| __________________________________________________________________________|____________| Adrenal Medulla | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Hyperplasia | 4 2 3 2 2 2 3 2 1 2 | 19 2.2| __________________________________________________________________________|____________| Islets, Pancreatic | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | __________________________________________________________________________|____________| Parathyroid Gland | + + + + + + + + + + + + + + + + + + + + + + + M +| 48 | Hyperplasia | 3 2 1| 5 2.0| __________________________________________________________________________|____________| Pituitary Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Pars Distalis, Hyperplasia | 2 1 | 5 2.2| __________________________________________________________________________|____________| Thyroid Gland | + + + + + + + + + + + A + + + + + + + + + + + + +| 49 | C-Cell, Hyperplasia | 1 1 1 1 1 1 2 2 1 2 2 1 1 1 2 1 1 1| 30 1.3| Follicular Cell, Hyperplasia | 2 | 1 2.0| _____________________________________________________________________________________________________________________| | GENERAL BODY SYSTEM | | | | | | __________________________________________________________________________|____________| Peritoneum | + | 2 | __________________________________________________________________________|____________| Tissue NOS | | 1 | _____________________________________________________________________________________________________________________| | GENITAL SYSTEM | | | | | | __________________________________________________________________________|____________| Epididymis | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Granuloma Sperm | 3 | 1 3.0| __________________________________________________________________________|____________| Preputial Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Inflammation, Chronic Active | 4 | 3 3.3| __________________________________________________________________________|____________| Prostate | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Hyperplasia | 2 1 2 2 2 2 2 2 | 11 1.9| Inflammation, Chronic Active | 4 2 2 | 5 3.2| __________________________________________________________________________________________________________________________________ * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade + : Tissue examined microscopically M : Missing tissue 1-4 : Lesion qualified as: X : Lesion present but not qualified A : Autolysis precludes examination 1) Minimal 3) Moderate I : Insufficient tissue BLANK : Not examined 2) Mild 4) Marked Page 35 NTP Experiment-Test: 05135-07 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOPRENE Date: 09/24/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 10:01:23 __________________________________________________________________________________________________________________________________ | 5| 6| 7| 6| 5| 7| 7| 7| 7| 7| 5| 6| 7| 7| 5| 7| 7| 7| 6| 7| 5| 6| 7| 7| 6| | DAY ON TEST | 5| 7| 3| 5| 9| 3| 3| 3| 3| 2| 5| 9| 3| 3| 6| 2| 3| 3| 0| 2| 0| 7| 3| 3| 6| | | 5| 5| 3| 9| 7| 4| 3| 3| 4| 1| 1| 4| 4| 4| 4| 3| 4| 3| 4| 4| 2| 1| 3| 3| 4| T (*) | _____________________________________________________________________________________________________________________| | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| O | FISCHER 344 RATS MALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| T | ANIMAL ID | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| A | CONTROL | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5| L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | __________________________________________________________________________________________________________________________________ GENITAL SYSTEM - cont | | | | | | __________________________________________________________________________|____________| Seminal Vesicle | + + + A + + + + + + + A + + + + + + + + + + + + +| 47 | Inflammation, Chronic Active | | 1 2.0| __________________________________________________________________________|____________| Testes | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Atrophy | | 1 3.0| Artery, Inflammation, Chronic Active | 3 3 2| 6 2.7| Interstitial Cell, Hyperplasia | 2 2 2 4 2 2 2 3| 15 2.4| _____________________________________________________________________________________________________________________| | HEMATOPOIETIC SYSTEM | | | | | | __________________________________________________________________________|____________| Bone Marrow | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | __________________________________________________________________________|____________| Lymph Node | + + + | 6 | Iliac, Ectasia | | 1 3.0| __________________________________________________________________________|____________| Lymph Node, Bronchial | + + + + + + + + + + + + + + + + + + + M M M + + +| 44 | __________________________________________________________________________|____________| Lymph Node, Mandibular | + + + + + + + + + + + + + + + + + + + M + + + + +| 49 | __________________________________________________________________________|____________| Lymph Node, Mesenteric | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | __________________________________________________________________________|____________| Lymph Node, Mediastinal | + + + + M + + + + + + M + + + + + + + + + M + + +| 46 | __________________________________________________________________________|____________| Spleen | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Fibrosis | 2 2 2 2 3 2 2 | 11 1.9| Hematopoietic Cell Proliferation | 3 | 3 2.3| Hemorrhage | 2 | 1 2.0| Necrosis | 4 2 | 3 2.7| __________________________________________________________________________|____________| Thymus | + + + + + + + + + + + + + + + + + + + + + + M M +| 47 | Cyst | 2 | 1 2.0| _____________________________________________________________________________________________________________________| | INTEGUMENTARY SYSTEM | | | | | | __________________________________________________________________________|____________| Mammary Gland | + + + + + M + + + + + M + + + + + + + + M + + + +| 42 | Galactocele | 3 | 2 3.0| Inflammation, Chronic | 3 | 1 3.0| __________________________________________________________________________|____________| Skin | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Cyst Epithelial Inclusion | X X | 2 | _____________________________________________________________________________________________________________________| | MUSCULOSKELETAL SYSTEM | | | | | | __________________________________________________________________________|____________| Bone | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Fibrous Osteodystrophy | 3 | 2 2.0| _____________________________________________________________________________________________________________________| | NERVOUS SYSTEM | | | | | | __________________________________________________________________________|____________| Brain | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Degeneration, Focal | 2 | 1 2.0| _____________________________________________________________________________________________________________________| | RESPIRATORY SYSTEM | | | | | | __________________________________________________________________________________________________________________________________ * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade + : Tissue examined microscopically M : Missing tissue 1-4 : Lesion qualified as: X : Lesion present but not qualified A : Autolysis precludes examination 1) Minimal 3) Moderate I : Insufficient tissue BLANK : Not examined 2) Mild 4) Marked Page 36 NTP Experiment-Test: 05135-07 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOPRENE Date: 09/24/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 10:01:23 __________________________________________________________________________________________________________________________________ | 5| 6| 7| 6| 5| 7| 7| 7| 7| 7| 5| 6| 7| 7| 5| 7| 7| 7| 6| 7| 5| 6| 7| 7| 6| | DAY ON TEST | 5| 7| 3| 5| 9| 3| 3| 3| 3| 2| 5| 9| 3| 3| 6| 2| 3| 3| 0| 2| 0| 7| 3| 3| 6| | | 5| 5| 3| 9| 7| 4| 3| 3| 4| 1| 1| 4| 4| 4| 4| 3| 4| 3| 4| 4| 2| 1| 3| 3| 4| T (*) | _____________________________________________________________________________________________________________________| | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| O | FISCHER 344 RATS MALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| T | ANIMAL ID | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| A | CONTROL | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5| L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | __________________________________________________________________________________________________________________________________ RESPIRATORY SYSTEM - cont | | | | | | __________________________________________________________________________|____________| Larynx | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | __________________________________________________________________________|____________| Lung | + + + + + + + + + + + + + + + + + + + + + + + + +| 49 | Inflammation, Chronic Active | 1 2 3 1 1 1 1 1 1 2 1 | 21 1.6| Alveolar Epithelium, Hyperplasia | 2 1 1| 7 1.1| __________________________________________________________________________|____________| Nose | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Foreign Body | X X X X| 4 | Inflammation, Suppurative | 1 1 2 1 2 2 1 1 3| 11 1.5| Thrombosis | 3 | 2 2.0| Olfactory Epithelium, Atrophy | 1| 1 1.0| Olfactory Epithelium, Metaplasia | 2 1 2 2 2 2| 7 1.7| Olfactory Epithelium, Metaplasia, | | | Squamous | 1 | 1 1.0| __________________________________________________________________________|____________| Trachea | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | _____________________________________________________________________________________________________________________| | SPECIAL SENSES SYSTEM | | | | | | __________________________________________________________________________|____________| Eye | + | 1 | Cataract | 3 | 1 3.0| Retina, Atrophy | 3 | 1 3.0| _____________________________________________________________________________________________________________________| | URINARY SYSTEM | | | | | | __________________________________________________________________________|____________| Kidney | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Cyst | 4 3| 2 3.5| Infarct | 3 | 1 3.0| Nephropathy | 3 2 4 3 2 3 3 3 3 3 3 2 3 4 2 3 3 3 2 3 2 2 3 4 4| 50 2.8| __________________________________________________________________________|____________| Urinary Bladder | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Inflammation, Chronic Active | 2 | 1 2.0| Transitional Epithelium, Hyperplasia | | 1 1.0| __________________________________________________________________________________________________________________________________ * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade + : Tissue examined microscopically M : Missing tissue 1-4 : Lesion qualified as: X : Lesion present but not qualified A : Autolysis precludes examination 1) Minimal 3) Moderate I : Insufficient tissue BLANK : Not examined 2) Mild 4) Marked Page 37 NTP Experiment-Test: 05135-07 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOPRENE Date: 09/24/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 10:01:23 _____________________________________________________________________________________________________________________ | 7| 5| 5| 7| 5| 7| 7| 6| 6| 7| 7| 6| 5| 7| 7| 7| 7| 3| 5| 7| 5| 6| 7| 6| 5| DAY ON TEST | 3| 3| 5| 1| 9| 3| 3| 0| 9| 3| 2| 5| 9| 1| 3| 3| 3| 9| 1| 0| 4| 9| 3| 0| 3| | 3| 8| 9| 4| 2| 4| 3| 4| 8| 4| 3| 7| 7| 9| 3| 3| 4| 8| 0| 2| 9| 3| 3| 2| 5| _____________________________________________________________________________________________________________________| | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| FISCHER 344 RATS MALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| ANIMAL ID | 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 220 PPM | 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2| | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| _____________________________________________________________________________________________________________________| ALIMENTARY SYSTEM | | | | __________________________________________________________________________| Esophagus | + + + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Intestine Large, Colon | + + + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Intestine Large, Rectum | + + + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Intestine Large, Cecum | + + + + A + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Intestine Small, Duodenum | + + + + A + + + + + + + + + + + + + + + + + + + +| Necrosis | 1 | __________________________________________________________________________| Intestine Small, Jejunum | + + + + A + + + + + + + + + + + + + + + + + + + A| __________________________________________________________________________| Intestine Small, Ileum | + + + + A + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Liver | + + + + + + + + + + + + + + + + + + + + + + + + +| Basophilic Focus | X X X X | Clear Cell Focus | X X X X X | Degeneration, Cystic | 2 1 2 | Eosinophilic Focus | X | Fatty Change | 1 2 1 2 3 | Hepatodiaphragmatic Nodule | | Inflammation, Chronic Active | | Inflammation, Granulomatous | 1 | Necrosis | | Bile Duct, Hyperplasia | 2 2 2 1 1 2 2 1 1 1 2 2 2 2 2 | Centrilobular, Necrosis | 2 1 2 2 2 1 2| __________________________________________________________________________| Mesentery | + + + + | Fat, Hemorrhage | | Fat, Necrosis | 2 2 2 | __________________________________________________________________________| Oral Mucosa | + | Pharyngeal, Hyperplasia, Squamous | 4 | __________________________________________________________________________| Pancreas | + + + + + + + + + + + + + + + + + + + + + + + + +| Atrophy | 1 2 2 1 2 1 2 1 2 2 1 | Basophilic Focus | X X | Hyperplasia | 2 3 3 | __________________________________________________________________________| Salivary Glands | + + + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Stomach, Forestomach | + + + + + + + + + + + + + + + + + + + + + + + + +| Hyperplasia, Squamous | 3 | Necrosis | 2 3 3 2 3 3| __________________________________________________________________________| Stomach, Glandular | + + + + + + + + + + + + + + + + + + + + + + + + +| Mineralization | | Necrosis | 3 2 2 | __________________________________________________________________________| Tooth | + | Developmental Malformation | X | _____________________________________________________________________________________________________________________| CARDIOVASCULAR SYSTEM | | | | __________________________________________________________________________| Heart | + + + + + + + + + + + + + + + + + + + + + + + + +| Cardiomyopathy | 2 2 1 2 1 3 2 2 2 2 1 2 2 2 2 3 2 2 2 2 2 1 2 2| Atrium, Thrombosis | 1 3 | _____________________________________________________________________________________________________________________| ENDOCRINE SYSTEM | | _____________________________________________________________________________________________________________________| Page 38 NTP Experiment-Test: 05135-07 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOPRENE Date: 09/24/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 10:01:23 _____________________________________________________________________________________________________________________ | 7| 5| 5| 7| 5| 7| 7| 6| 6| 7| 7| 6| 5| 7| 7| 7| 7| 3| 5| 7| 5| 6| 7| 6| 5| DAY ON TEST | 3| 3| 5| 1| 9| 3| 3| 0| 9| 3| 2| 5| 9| 1| 3| 3| 3| 9| 1| 0| 4| 9| 3| 0| 3| | 3| 8| 9| 4| 2| 4| 3| 4| 8| 4| 3| 7| 7| 9| 3| 3| 4| 8| 0| 2| 9| 3| 3| 2| 5| _____________________________________________________________________________________________________________________| | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| FISCHER 344 RATS MALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| ANIMAL ID | 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 220 PPM | 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2| | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| _____________________________________________________________________________________________________________________| ENDOCRINE SYSTEM - cont | | | | | | __________________________________________________________________________| Adrenal Cortex | + + + + + + + + + + + + + + + + + + + + + + + + +| Hyperplasia | 2 2 1 2 2 2 2 2 1 2 1 2 | Hypertrophy | 2 2 2 | Vacuolization Cytoplasmic | 2 3 1 2 | __________________________________________________________________________| Adrenal Medulla | + + + + + + + + + + + + + + + + + + + + + + + + +| Angiectasis | | Hyperplasia | 3 3 1 2 3 1 2 3 3 | __________________________________________________________________________| Islets, Pancreatic | + + + + + + + + + + + + + + + + + + + + + + + + +| Hyperplasia | | __________________________________________________________________________| Parathyroid Gland | + + + + + + + + + + + + + + + + + + + M + + + + +| Cyst | | Hyperplasia | 2 2 2 1 | __________________________________________________________________________| Pituitary Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| Pars Distalis, Hyperplasia | 3 2 3 | __________________________________________________________________________| Thyroid Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| C-Cell, Hyperplasia | 3 1 1 1 1 3 1 1 1 1 1 1 1 1 3 2 1| Follicular Cell, Hyperplasia | 1 | _____________________________________________________________________________________________________________________| GENERAL BODY SYSTEM | | | | __________________________________________________________________________| Tissue NOS | | _____________________________________________________________________________________________________________________| GENITAL SYSTEM | | | | __________________________________________________________________________| Epididymis | + + + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Preputial Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| Hyperplasia | | Inflammation, Chronic Active | | __________________________________________________________________________| Prostate | + + + + + + + + + + + + + + + + + + + + + + + + +| Hyperplasia | 2 1 1 1 2 1 3 | Inflammation, Chronic Active | | __________________________________________________________________________| Seminal Vesicle | + + + + A + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Testes | + + + + + + + + + + + + + + + + + + + + + + + + +| Atrophy | 3 | Artery, Inflammation, Chronic Active | | Interstitial Cell, Hyperplasia | 3 2 2 2 2 2 | _____________________________________________________________________________________________________________________| HEMATOPOIETIC SYSTEM | | | | __________________________________________________________________________| Bone Marrow | + + + + + + + + + + + + + + + + + + + + + + + + +| Hyperplasia, Histiocytic | 2 | __________________________________________________________________________| Lymph Node | + + + + +| __________________________________________________________________________| Lymph Node, Bronchial | + + + + + + + M M + M + + + M + + + M + + + + + +| __________________________________________________________________________| Lymph Node, Mandibular | + + + + M + + + + + + M + + + + + + + + + + + + +| Infiltration Cellular, Plasma Cell | 4 4 | __________________________________________________________________________| Lymph Node, Mesenteric | + + + + + + + + + + + + + + + + + + + + + + M + +| _____________________________________________________________________________________________________________________| Page 39 NTP Experiment-Test: 05135-07 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOPRENE Date: 09/24/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 10:01:23 _____________________________________________________________________________________________________________________ | 7| 5| 5| 7| 5| 7| 7| 6| 6| 7| 7| 6| 5| 7| 7| 7| 7| 3| 5| 7| 5| 6| 7| 6| 5| DAY ON TEST | 3| 3| 5| 1| 9| 3| 3| 0| 9| 3| 2| 5| 9| 1| 3| 3| 3| 9| 1| 0| 4| 9| 3| 0| 3| | 3| 8| 9| 4| 2| 4| 3| 4| 8| 4| 3| 7| 7| 9| 3| 3| 4| 8| 0| 2| 9| 3| 3| 2| 5| _____________________________________________________________________________________________________________________| | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| FISCHER 344 RATS MALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| ANIMAL ID | 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 220 PPM | 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2| | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| _____________________________________________________________________________________________________________________| HEMATOPOIETIC SYSTEM - cont | | | | __________________________________________________________________________| Lymph Node, Mediastinal | + + + + + M + + + + + + + + + + + M + + + + + + +| __________________________________________________________________________| Spleen | + + + + + + + + + + + + + + + + + + + + + + + + +| Fibrosis | 2 2 2 2 1 3 | Hematopoietic Cell Proliferation | 2 | __________________________________________________________________________| Thymus | M + M + + + M + + + + M + + + + + M + + M + + + +| _____________________________________________________________________________________________________________________| INTEGUMENTARY SYSTEM | | | | __________________________________________________________________________| Mammary Gland | + + + + M + + + + M + + + + + + M + M + + + + + +| Galactocele | 2 3 | __________________________________________________________________________| Skin | + + + + + + + + + + + + + + + + + + + + + + + + +| Inflammation, Chronic Active | | _____________________________________________________________________________________________________________________| MUSCULOSKELETAL SYSTEM | | | | __________________________________________________________________________| Bone | + + + + + + + + + + + + + + + + + + + + + + + + +| Fibrous Osteodystrophy | 2 | Hyperostosis | 1 | _____________________________________________________________________________________________________________________| NERVOUS SYSTEM | | | | __________________________________________________________________________| Brain | + + + + + + + + + + + + + + + + + + + + + + + + +| Gliosis | 2 | _____________________________________________________________________________________________________________________| RESPIRATORY SYSTEM | | | | __________________________________________________________________________| Larynx | + + + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Lung | + + + + + + + + + + + + + + + + + + + + + + + + +| Inflammation, Chronic, Focal | 4 | Inflammation, Chronic Active | 1 2 1 1 1 4| Thrombosis | 3| Alveolar Epithelium, Hyperplasia | 2 4 1 1 1 1 | __________________________________________________________________________| Nose | + + + + + + + + + + + + + + + + + + + + + + + + +| Foreign Body | X X X| Inflammation, Suppurative | 1 1 2 2 1 1| Thrombosis | 3 4| Olfactory Epithelium, Metaplasia | 2 2 | Respiratory Epithelium, Hyperplasia | 1 | __________________________________________________________________________| Trachea | + + + + + + + + + + + + + + + + + + + + + + + + +| _____________________________________________________________________________________________________________________| SPECIAL SENSES SYSTEM | | | | __________________________________________________________________________| Eye | + + | Cataract | 3 | Cornea, Inflammation, Chronic Active | | Retina, Atrophy | 3 4 | __________________________________________________________________________| Zymbal's Gland | + | _____________________________________________________________________________________________________________________| URINARY SYSTEM | | | | _____________________________________________________________________________________________________________________| Page 40 NTP Experiment-Test: 05135-07 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOPRENE Date: 09/24/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 10:01:23 _____________________________________________________________________________________________________________________ | 7| 5| 5| 7| 5| 7| 7| 6| 6| 7| 7| 6| 5| 7| 7| 7| 7| 3| 5| 7| 5| 6| 7| 6| 5| DAY ON TEST | 3| 3| 5| 1| 9| 3| 3| 0| 9| 3| 2| 5| 9| 1| 3| 3| 3| 9| 1| 0| 4| 9| 3| 0| 3| | 3| 8| 9| 4| 2| 4| 3| 4| 8| 4| 3| 7| 7| 9| 3| 3| 4| 8| 0| 2| 9| 3| 3| 2| 5| _____________________________________________________________________________________________________________________| | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| FISCHER 344 RATS MALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| ANIMAL ID | 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 220 PPM | 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2| | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| _____________________________________________________________________________________________________________________| URINARY SYSTEM - cont | | | | __________________________________________________________________________| Kidney | + + + + + + + + + + + + + + + + + + + + + + + + +| Infarct | 4 | Nephropathy | 4 2 3 3 2 3 2 3 2 3 4 4 2 4 3 2 3 1 3 2 2 4 3 2 2| Renal Tubule, Hyperplasia | | __________________________________________________________________________| Urinary Bladder | + + + + + + + + + + + + + + + + + + + + + + + + +| _____________________________________________________________________________________________________________________| Page 41 NTP Experiment-Test: 05135-07 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOPRENE Date: 09/24/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 10:01:23 __________________________________________________________________________________________________________________________________ | 6| 7| 7| 7| 5| 6| 4| 7| 7| 7| 7| 7| 6| 6| 4| 6| 5| 6| 7| 4| 6| 6| 7| 7| 6| | DAY ON TEST | 5| 3| 3| 1| 8| 8| 2| 3| 3| 3| 3| 3| 5| 6| 9| 5| 8| 7| 3| 5| 2| 7| 0| 0| 3| | | 7| 4| 3| 7| 8| 2| 0| 3| 3| 3| 3| 3| 7| 4| 9| 2| 1| 1| 3| 5| 9| 0| 2| 3| 5| T (*) | _____________________________________________________________________________________________________________________| | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| O | FISCHER 344 RATS MALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| T | ANIMAL ID | 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| A | 220 PPM | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5| L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | __________________________________________________________________________________________________________________________________ ALIMENTARY SYSTEM | | | | | | __________________________________________________________________________|____________| Esophagus | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | __________________________________________________________________________|____________| Intestine Large, Colon | + + + + + + + + + + + + + + + + + + + + + A + + +| 49 | __________________________________________________________________________|____________| Intestine Large, Rectum | + + + + + + + + + + + + + + + + + + + + + + + + I| 49 | __________________________________________________________________________|____________| Intestine Large, Cecum | + + + + + + A + + + + + + + + + + + + + + A + + +| 47 | __________________________________________________________________________|____________| Intestine Small, Duodenum | + + + + + + + + + + + + + + + + + + + + + + + + +| 49 | Necrosis | | 1 1.0| __________________________________________________________________________|____________| Intestine Small, Jejunum | + + + + + + A + + + + + + + + + + + + + + A + + +| 46 | __________________________________________________________________________|____________| Intestine Small, Ileum | + + + + + + A + + + + + + + + + + + + + + A + + +| 47 | __________________________________________________________________________|____________| Liver | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Basophilic Focus | X X X X X X X X X | 13 | Clear Cell Focus | X X X X | 9 | Degeneration, Cystic | 2 3 2 2 2 2 | 9 2.0| Eosinophilic Focus | X X X | 4 | Fatty Change | 1 1 1 2 1 1 1 | 12 1.4| Hepatodiaphragmatic Nodule | X | 1 | Inflammation, Chronic Active | 2 | 1 2.0| Inflammation, Granulomatous | | 1 1.0| Necrosis | 1 | 1 1.0| Bile Duct, Hyperplasia | 2 2 2 2 1 1 2 1 1 1 2 2 1 1 2 1 2| 32 1.6| Centrilobular, Necrosis | 1 2 2 1 | 11 1.6| __________________________________________________________________________|____________| Mesentery | + + + + + + + +| 12 | Fat, Hemorrhage | 2 | 1 2.0| Fat, Necrosis | 2 2 3 2 2 2 3| 10 2.2| __________________________________________________________________________|____________| Oral Mucosa | | 1 | Pharyngeal, Hyperplasia, Squamous | | 1 4.0| __________________________________________________________________________|____________| Pancreas | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Atrophy | 1 2 2 2 2 1 2 1 2 2 2 3| 23 1.7| Basophilic Focus | X X | 4 | Hyperplasia | 2 2 2 | 6 2.3| __________________________________________________________________________|____________| Salivary Glands | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | __________________________________________________________________________|____________| Stomach, Forestomach | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Hyperplasia, Squamous | | 1 3.0| Necrosis | 4 4 | 8 3.0| __________________________________________________________________________|____________| Stomach, Glandular | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Mineralization | 1 | 1 1.0| Necrosis | | 3 2.3| __________________________________________________________________________|____________| Tooth | | 1 | Developmental Malformation | | 1 | _____________________________________________________________________________________________________________________| | CARDIOVASCULAR SYSTEM | | | __________________________________________________________________________________________________________________________________ * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade + : Tissue examined microscopically M : Missing tissue 1-4 : Lesion qualified as: X : Lesion present but not qualified A : Autolysis precludes examination 1) Minimal 3) Moderate I : Insufficient tissue BLANK : Not examined 2) Mild 4) Marked Page 42 NTP Experiment-Test: 05135-07 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOPRENE Date: 09/24/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 10:01:23 __________________________________________________________________________________________________________________________________ | 6| 7| 7| 7| 5| 6| 4| 7| 7| 7| 7| 7| 6| 6| 4| 6| 5| 6| 7| 4| 6| 6| 7| 7| 6| | DAY ON TEST | 5| 3| 3| 1| 8| 8| 2| 3| 3| 3| 3| 3| 5| 6| 9| 5| 8| 7| 3| 5| 2| 7| 0| 0| 3| | | 7| 4| 3| 7| 8| 2| 0| 3| 3| 3| 3| 3| 7| 4| 9| 2| 1| 1| 3| 5| 9| 0| 2| 3| 5| T (*) | _____________________________________________________________________________________________________________________| | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| O | FISCHER 344 RATS MALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| T | ANIMAL ID | 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| A | 220 PPM | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5| L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | __________________________________________________________________________________________________________________________________ CARDIOVASCULAR SYSTEM - cont | | | | | | | | | __________________________________________________________________________|____________| Heart | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Cardiomyopathy | 1 2 2 2 2 1 2 3 2 2 3 2 2 2 2 2 1 2 2 2 | 44 1.9| Atrium, Thrombosis | 2 | 3 2.0| _____________________________________________________________________________________________________________________| | ENDOCRINE SYSTEM | | | | | | __________________________________________________________________________|____________| Adrenal Cortex | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Hyperplasia | 2 2 2 1 1 1 3 2 2 2 2 | 23 1.8| Hypertrophy | 2 1 1 2 2 2 2 2| 11 1.8| Vacuolization Cytoplasmic | 2 2| 6 2.0| __________________________________________________________________________|____________| Adrenal Medulla | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Angiectasis | 4 | 1 4.0| Hyperplasia | 2 2 3 2 2 2 2 2 1 3 | 19 2.2| __________________________________________________________________________|____________| Islets, Pancreatic | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Hyperplasia | 2 | 1 2.0| __________________________________________________________________________|____________| Parathyroid Gland | + + + + + + + + + + + M + + + + + + M + + M + + +| 46 | Cyst | 3 | 1 3.0| Hyperplasia | 3 2 | 6 2.0| __________________________________________________________________________|____________| Pituitary Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Pars Distalis, Hyperplasia | 3 2 3 | 6 2.7| __________________________________________________________________________|____________| Thyroid Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | C-Cell, Hyperplasia | 1 1 1 3 1 1 1 1 1 2 1 1 2 | 30 1.4| Follicular Cell, Hyperplasia | | 1 1.0| _____________________________________________________________________________________________________________________| | GENERAL BODY SYSTEM | | | | | | __________________________________________________________________________|____________| Tissue NOS | + +| 2 | _____________________________________________________________________________________________________________________| | GENITAL SYSTEM | | | | | | __________________________________________________________________________|____________| Epididymis | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | __________________________________________________________________________|____________| Preputial Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Hyperplasia | 1 | 1 1.0| Inflammation, Chronic Active | 4 | 1 4.0| __________________________________________________________________________|____________| Prostate | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Hyperplasia | 3 2 3 3 3 3 | 13 2.2| Inflammation, Chronic Active | 2 1 | 2 1.5| __________________________________________________________________________|____________| Seminal Vesicle | + + + + + + + + + + + + + + + + + + + + + A + + +| 48 | __________________________________________________________________________|____________| Testes | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Atrophy | | 1 3.0| Artery, Inflammation, Chronic Active | 3 3 | 2 3.0| __________________________________________________________________________________________________________________________________ * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade + : Tissue examined microscopically M : Missing tissue 1-4 : Lesion qualified as: X : Lesion present but not qualified A : Autolysis precludes examination 1) Minimal 3) Moderate I : Insufficient tissue BLANK : Not examined 2) Mild 4) Marked Page 43 NTP Experiment-Test: 05135-07 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOPRENE Date: 09/24/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 10:01:23 __________________________________________________________________________________________________________________________________ | 6| 7| 7| 7| 5| 6| 4| 7| 7| 7| 7| 7| 6| 6| 4| 6| 5| 6| 7| 4| 6| 6| 7| 7| 6| | DAY ON TEST | 5| 3| 3| 1| 8| 8| 2| 3| 3| 3| 3| 3| 5| 6| 9| 5| 8| 7| 3| 5| 2| 7| 0| 0| 3| | | 7| 4| 3| 7| 8| 2| 0| 3| 3| 3| 3| 3| 7| 4| 9| 2| 1| 1| 3| 5| 9| 0| 2| 3| 5| T (*) | _____________________________________________________________________________________________________________________| | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| O | FISCHER 344 RATS MALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| T | ANIMAL ID | 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| A | 220 PPM | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5| L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | __________________________________________________________________________________________________________________________________ GENITAL SYSTEM - cont | | | | | | Interstitial Cell, Hyperplasia | 3 2 4 1 2 2 3 | 13 2.3| _____________________________________________________________________________________________________________________| | HEMATOPOIETIC SYSTEM | | | | | | __________________________________________________________________________|____________| Bone Marrow | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Hyperplasia, Histiocytic | | 1 2.0| __________________________________________________________________________|____________| Lymph Node | + + | 7 | __________________________________________________________________________|____________| Lymph Node, Bronchial | + + + + + + + + + + + + + + + + M M M M + + M M +| 39 | __________________________________________________________________________|____________| Lymph Node, Mandibular | + + + + + M + + + + + + + + + + + + + + + + M + +| 46 | Infiltration Cellular, Plasma Cell | | 2 4.0| __________________________________________________________________________|____________| Lymph Node, Mesenteric | + + + + + + + + + + + + + + + + + + + + + + + + +| 49 | __________________________________________________________________________|____________| Lymph Node, Mediastinal | + + + + + + M M + + M + + + + + + M + + + + + + +| 44 | __________________________________________________________________________|____________| Spleen | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Fibrosis | 2 2 2 2 2 2 1 2| 14 1.9| Hematopoietic Cell Proliferation | 3 2 | 3 2.3| __________________________________________________________________________|____________| Thymus | + + + + + + + + + + + + + + + + + + + + + + + + +| 44 | _____________________________________________________________________________________________________________________| | INTEGUMENTARY SYSTEM | | | | | | __________________________________________________________________________|____________| Mammary Gland | + I + + + + + M + + + + + + + + + M + + + + + + +| 43 | Galactocele | 2 2 | 4 2.3| __________________________________________________________________________|____________| Skin | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Inflammation, Chronic Active | 4 | 1 4.0| _____________________________________________________________________________________________________________________| | MUSCULOSKELETAL SYSTEM | | | | | | __________________________________________________________________________|____________| Bone | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Fibrous Osteodystrophy | | 1 2.0| Hyperostosis | | 1 1.0| _____________________________________________________________________________________________________________________| | NERVOUS SYSTEM | | | | | | __________________________________________________________________________|____________| Brain | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Gliosis | | 1 2.0| _____________________________________________________________________________________________________________________| | RESPIRATORY SYSTEM | | | | | | __________________________________________________________________________|____________| Larynx | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | __________________________________________________________________________|____________| Lung | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Inflammation, Chronic, Focal | | 1 4.0| Inflammation, Chronic Active | 1 1 1 1 1 1 1 1 1 1 | 16 1.3| Thrombosis | | 1 3.0| Alveolar Epithelium, Hyperplasia | 1 1 1 1 1 | 11 1.4| __________________________________________________________________________|____________| Nose | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | __________________________________________________________________________________________________________________________________ * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade + : Tissue examined microscopically M : Missing tissue 1-4 : Lesion qualified as: X : Lesion present but not qualified A : Autolysis precludes examination 1) Minimal 3) Moderate I : Insufficient tissue BLANK : Not examined 2) Mild 4) Marked Page 44 NTP Experiment-Test: 05135-07 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOPRENE Date: 09/24/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 10:01:23 __________________________________________________________________________________________________________________________________ | 6| 7| 7| 7| 5| 6| 4| 7| 7| 7| 7| 7| 6| 6| 4| 6| 5| 6| 7| 4| 6| 6| 7| 7| 6| | DAY ON TEST | 5| 3| 3| 1| 8| 8| 2| 3| 3| 3| 3| 3| 5| 6| 9| 5| 8| 7| 3| 5| 2| 7| 0| 0| 3| | | 7| 4| 3| 7| 8| 2| 0| 3| 3| 3| 3| 3| 7| 4| 9| 2| 1| 1| 3| 5| 9| 0| 2| 3| 5| T (*) | _____________________________________________________________________________________________________________________| | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| O | FISCHER 344 RATS MALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| T | ANIMAL ID | 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| A | 220 PPM | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5| L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | __________________________________________________________________________________________________________________________________ RESPIRATORY SYSTEM - cont | | | | | | Foreign Body | X | 4 | Inflammation, Suppurative | 3 2 1 | 9 1.6| Thrombosis | 1 2 | 4 2.5| Olfactory Epithelium, Metaplasia | | 2 2.0| Respiratory Epithelium, Hyperplasia | 1 | 2 1.0| __________________________________________________________________________|____________| Trachea | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | _____________________________________________________________________________________________________________________| | SPECIAL SENSES SYSTEM | | | | | | __________________________________________________________________________|____________| Eye | + | 3 | Cataract | | 1 3.0| Cornea, Inflammation, Chronic Active | 3 | 1 3.0| Retina, Atrophy | | 2 3.5| __________________________________________________________________________|____________| Zymbal's Gland | | 1 | _____________________________________________________________________________________________________________________| | URINARY SYSTEM | | | | | | __________________________________________________________________________|____________| Kidney | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Infarct | | 1 4.0| Nephropathy | 3 3 3 3 2 3 1 3 4 4 4 2 3 3 2 2 2 4 2 2 2 3 4 3 2| 50 2.7| Renal Tubule, Hyperplasia | 4 3 | 2 3.5| __________________________________________________________________________|____________| Urinary Bladder | + + + + + + A + + + + + + + + + + + + + + + + + +| 49 | __________________________________________________________________________________________________________________________________ * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade + : Tissue examined microscopically M : Missing tissue 1-4 : Lesion qualified as: X : Lesion present but not qualified A : Autolysis precludes examination 1) Minimal 3) Moderate I : Insufficient tissue BLANK : Not examined 2) Mild 4) Marked Page 45 NTP Experiment-Test: 05135-07 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOPRENE Date: 09/24/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 10:01:23 _____________________________________________________________________________________________________________________ | 6| 5| 7| 7| 6| 7| 5| 6| 6| 7| 6| 5| 7| 7| 7| 7| 6| 5| 7| 4| 5| 4| 5| 5| 7| DAY ON TEST | 5| 7| 3| 1| 6| 3| 4| 6| 9| 3| 8| 6| 2| 3| 3| 2| 7| 9| 3| 6| 2| 5| 1| 1| 0| | 5| 6| 3| 2| 4| 4| 7| 7| 2| 4| 6| 6| 2| 4| 4| 7| 1| 1| 3| 9| 1| 4| 0| 8| 6| _____________________________________________________________________________________________________________________| | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| FISCHER 344 RATS MALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| ANIMAL ID | 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 700 PPM | 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2| | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| _____________________________________________________________________________________________________________________| ALIMENTARY SYSTEM | | | | __________________________________________________________________________| Esophagus | + + + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Intestine Large, Colon | + + + A + + + + A + + + + + + + + A + + + + + + +| __________________________________________________________________________| Intestine Large, Rectum | + + + + + + + + A + + + A + + + + A + + + + + + +| Inflammation, Acute | | __________________________________________________________________________| Intestine Large, Cecum | + + + A + + + + A + + + A + + + + A + + + + + + +| Diverticulum | | Mineralization | | __________________________________________________________________________| Intestine Small, Duodenum | + + + + + + + + A + + + + + + + + A + + + + + + +| Inflammation, Acute | | Necrosis | 1| __________________________________________________________________________| Intestine Small, Jejunum | + + + + + + + + A + + + A + + + + A + + + + + + +| __________________________________________________________________________| Intestine Small, Ileum | + + + + + + + + A + + + A + + + + A + + + + + + +| Inflammation, Chronic Active | | Necrosis | | __________________________________________________________________________| Liver | + + + + + + + + + + + + + + + + + + + + + + + + +| Angiectasis | 1 | Basophilic Focus | X X X X X X X| Clear Cell Focus | X X X | Degeneration, Cystic | 2 2 4 1 2 2| Eosinophilic Focus | X X | Fatty Change | 2 1 1 3 | Hepatodiaphragmatic Nodule | X X | Inflammation, Acute | | Necrosis | | Regeneration | 2 4 | Bile Duct, Hyperplasia | 2 1 2 3 2 2 1 2 2 2 3 2 1 2 1 1| Centrilobular, Necrosis | 2 2 2 2 2 | __________________________________________________________________________| Mesentery | + + + + + + + | Thrombosis | 4 | Artery, Mineralization | 4 | Fat, Hemorrhage | | Fat, Inflammation, Chronic Active | 2 | Fat, Necrosis | 2 2 2 2 2 | __________________________________________________________________________| Pancreas | + + + + + + + + + + + + + + + + + + + + + + + + +| Atrophy | 2 1 2 2 2 2 2 2 2| Basophilic Focus | | Hyperplasia | 2 2 3 4 2 | __________________________________________________________________________| Salivary Glands | + + + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Stomach, Forestomach | + + + + + + + + + + + + + + + + + + + + + + + + +| Hyperplasia, Squamous | 1 | Inflammation, Acute | | Mineralization | 3 | Necrosis | 2 3 4 3 3 4 | __________________________________________________________________________| Stomach, Glandular | + + + + + + + + + + + + + + + + + + + + + + + + +| _____________________________________________________________________________________________________________________| Page 46 NTP Experiment-Test: 05135-07 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOPRENE Date: 09/24/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 10:01:23 _____________________________________________________________________________________________________________________ | 6| 5| 7| 7| 6| 7| 5| 6| 6| 7| 6| 5| 7| 7| 7| 7| 6| 5| 7| 4| 5| 4| 5| 5| 7| DAY ON TEST | 5| 7| 3| 1| 6| 3| 4| 6| 9| 3| 8| 6| 2| 3| 3| 2| 7| 9| 3| 6| 2| 5| 1| 1| 0| | 5| 6| 3| 2| 4| 4| 7| 7| 2| 4| 6| 6| 2| 4| 4| 7| 1| 1| 3| 9| 1| 4| 0| 8| 6| _____________________________________________________________________________________________________________________| | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| FISCHER 344 RATS MALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| ANIMAL ID | 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 700 PPM | 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2| | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| _____________________________________________________________________________________________________________________| ALIMENTARY SYSTEM - cont | | | | Mineralization | 1 4 | Necrosis | 3 3 3 | __________________________________________________________________________| Tongue | | Hyperplasia | | _____________________________________________________________________________________________________________________| CARDIOVASCULAR SYSTEM | | | | __________________________________________________________________________| Blood Vessel | + | Aorta, Mineralization | 4 | __________________________________________________________________________| Heart | + + + + + + + + + + + + + + + + + + + + + + + + +| Cardiomyopathy | 2 2 2 3 2 3 2 2 2 2 3 2 3 2 2 2 2 2 3 1 2 2 1| Artery, Mineralization | 3 | Atrium, Thrombosis | 2 3 | _____________________________________________________________________________________________________________________| ENDOCRINE SYSTEM | | | | __________________________________________________________________________| Adrenal Cortex | + + + + + + + + + + + + + + + + + + + + + + + + +| Hyperplasia | 2 2 2 2 2 2 2 1 2| Hypertrophy | 4 2 1 | Necrosis | 2 | Vacuolization Cytoplasmic | 2 1 | __________________________________________________________________________| Adrenal Medulla | + + + + + + + + + + + + + + + + + + + + + + + + +| Hyperplasia | 2 2 3 4 2 2 2 2 2 1 2 2| Bilateral, Hyperplasia | 2 3 | __________________________________________________________________________| Islets, Pancreatic | + + + + + + + + + + + + + + + + + + + + + + + + +| Hyperplasia | | __________________________________________________________________________| Parathyroid Gland | + + + M + + + + + + + + + + + + + + M + + + + + +| Hyperplasia | 2 2 4 3 | __________________________________________________________________________| Pituitary Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| Pars Distalis, Hyperplasia | 3 3 1 | __________________________________________________________________________| Thyroid Gland | + + + + + + + + + + + + A + + + + + + + + + + + +| C-Cell, Hyperplasia | 1 2 3 1 1 2 1 1 1 1 1 2 3 1 1| _____________________________________________________________________________________________________________________| GENERAL BODY SYSTEM | | | | __________________________________________________________________________| Peritoneum | | _____________________________________________________________________________________________________________________| GENITAL SYSTEM | | | | __________________________________________________________________________| Epididymis | + + + + + + + + + + + + + + + + + + + + + + + + +| Granuloma Sperm | | __________________________________________________________________________| Preputial Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| Inflammation, Chronic Active | 4 | __________________________________________________________________________| Prostate | + + + + + + + + + + + + + + + + + + + + + + + + +| Hyperplasia | 2 2 2 1 3 3 1 3 | Inflammation, Chronic Active | | __________________________________________________________________________| Seminal Vesicle | + + + A + + + + A + + + + + + + + + + + + + + + +| __________________________________________________________________________| Testes | + + + + + + + + + + + + + + + + + + + + + + + + +| _____________________________________________________________________________________________________________________| Page 47 NTP Experiment-Test: 05135-07 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOPRENE Date: 09/24/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 10:01:23 _____________________________________________________________________________________________________________________ | 6| 5| 7| 7| 6| 7| 5| 6| 6| 7| 6| 5| 7| 7| 7| 7| 6| 5| 7| 4| 5| 4| 5| 5| 7| DAY ON TEST | 5| 7| 3| 1| 6| 3| 4| 6| 9| 3| 8| 6| 2| 3| 3| 2| 7| 9| 3| 6| 2| 5| 1| 1| 0| | 5| 6| 3| 2| 4| 4| 7| 7| 2| 4| 6| 6| 2| 4| 4| 7| 1| 1| 3| 9| 1| 4| 0| 8| 6| _____________________________________________________________________________________________________________________| | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| FISCHER 344 RATS MALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| ANIMAL ID | 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 700 PPM | 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2| | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| _____________________________________________________________________________________________________________________| GENITAL SYSTEM - cont | | | | Atrophy | | Artery, Inflammation, Chronic Active | 3 | Interstitial Cell, Hyperplasia | 2 1 2 3 2 2 1 | _____________________________________________________________________________________________________________________| HEMATOPOIETIC SYSTEM | | | | __________________________________________________________________________| Bone Marrow | + + + + + + + + + + + + + + + + + A + + + + + + +| __________________________________________________________________________| Lymph Node | + + + | __________________________________________________________________________| Lymph Node, Bronchial | + + + + + + + M + + + + + + + + + M M + + M + + +| __________________________________________________________________________| Lymph Node, Mandibular | + M + + + + + M + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Lymph Node, Mesenteric | + M + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Lymph Node, Mediastinal | + + + + + + + + + M + + + M + + + + + + M + + + +| __________________________________________________________________________| Spleen | + + + + + + + + + + + + + + + + + + + + + + + + +| Fibrosis | 2 1 4 3 2 3 2 2 1 2| Hematopoietic Cell Proliferation | | Necrosis | | __________________________________________________________________________| Thymus | + + + + + + + + + + + + + + + M + + + + + + + + +| _____________________________________________________________________________________________________________________| INTEGUMENTARY SYSTEM | | | | __________________________________________________________________________| Mammary Gland | + + + M + + + + + + + + + + + + + + + + + M + + +| Galactocele | | __________________________________________________________________________| Skin | + + + + + + + + + + + + + + + + + + + + + + + + +| Inflammation, Chronic Active | 3 | _____________________________________________________________________________________________________________________| MUSCULOSKELETAL SYSTEM | | | | __________________________________________________________________________| Bone | + + + + + + + + + + + + + + + + + + + + + + + + +| Fibrous Osteodystrophy | 2 3 | Hyperostosis | 1 | _____________________________________________________________________________________________________________________| NERVOUS SYSTEM | | | | __________________________________________________________________________| Brain | + + + + + + + + + + + + + + + + + + + + + + + + +| _____________________________________________________________________________________________________________________| RESPIRATORY SYSTEM | | | | __________________________________________________________________________| Larynx | + + + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Lung | + + + + + + + + + + + + + + + + + + + + + + + + +| Inflammation, Chronic Active | 1 2 1 1 1 3 2 3 1| Mineralization | 4 | Alveolar Epithelium, Hyperplasia | 1 1 | Artery, Mediastinum, Mineralization | 3 | __________________________________________________________________________| Nose | + + + + + + + + + + + + + + + + + A + + + + + + +| Foreign Body | X X | Inflammation, Suppurative | 2 2 2 | Thrombosis | 3 4 2 2 | Olfactory Epithelium, Atrophy | 1 2 2 | Olfactory Epithelium, Metaplasia | | _____________________________________________________________________________________________________________________| Page 48 NTP Experiment-Test: 05135-07 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOPRENE Date: 09/24/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 10:01:23 _____________________________________________________________________________________________________________________ | 6| 5| 7| 7| 6| 7| 5| 6| 6| 7| 6| 5| 7| 7| 7| 7| 6| 5| 7| 4| 5| 4| 5| 5| 7| DAY ON TEST | 5| 7| 3| 1| 6| 3| 4| 6| 9| 3| 8| 6| 2| 3| 3| 2| 7| 9| 3| 6| 2| 5| 1| 1| 0| | 5| 6| 3| 2| 4| 4| 7| 7| 2| 4| 6| 6| 2| 4| 4| 7| 1| 1| 3| 9| 1| 4| 0| 8| 6| _____________________________________________________________________________________________________________________| | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| FISCHER 344 RATS MALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| ANIMAL ID | 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 700 PPM | 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2| | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| _____________________________________________________________________________________________________________________| RESPIRATORY SYSTEM - cont | | | | Respiratory Epithelium, Hyperplasia | | Respiratory Epithelium, Metaplasia, | | Squamous | 1 | __________________________________________________________________________| Trachea | + + + + + + + + + + + + + + + + + + + + + + + + +| Mineralization | 2 | _____________________________________________________________________________________________________________________| SPECIAL SENSES SYSTEM | | | | __________________________________________________________________________| Eye | + + | Cataract | 3 3 | Hemorrhage | | Cornea, Inflammation, Chronic Active | | Retina, Atrophy | 4 3 | __________________________________________________________________________| Zymbal's Gland | | _____________________________________________________________________________________________________________________| URINARY SYSTEM | | | | __________________________________________________________________________| Kidney | + + + + + + + + + + + + + + + + + + + + + + + + +| Cyst | 3 2 | Infarct | | Mineralization | 3 | Nephropathy | 4 2 3 3 2 3 2 4 2 4 3 4 2 3 3 4 3 2 3 2 2 2 2 3 4| Renal Tubule, Hyperplasia | 3 2 2 | __________________________________________________________________________| Urinary Bladder | + + + + + + + + + + + + + + + + + + + + + + + + +| _____________________________________________________________________________________________________________________| Page 49 NTP Experiment-Test: 05135-07 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOPRENE Date: 09/24/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 10:01:23 __________________________________________________________________________________________________________________________________ | 6| 6| 7| 7| 6| 7| 6| 7| 5| 5| 7| 7| 5| 5| 4| 6| 6| 7| 7| 7| 6| 5| 5| 7| 6| | DAY ON TEST | 6| 6| 3| 3| 8| 2| 8| 3| 8| 3| 3| 3| 4| 6| 5| 2| 9| 3| 3| 3| 8| 5| 9| 3| 7| | | 7| 8| 3| 3| 3| 8| 1| 3| 0| 7| 3| 3| 1| 6| 4| 1| 5| 3| 3| 3| 4| 5| 4| 3| 0| T (*) | _____________________________________________________________________________________________________________________| | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| O | FISCHER 344 RATS MALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| T | ANIMAL ID | 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| A | 700 PPM | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5| L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | __________________________________________________________________________________________________________________________________ ALIMENTARY SYSTEM | | | | | | __________________________________________________________________________|____________| Esophagus | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | __________________________________________________________________________|____________| Intestine Large, Colon | + + + + + + + + + + + + + + + + + + + + + + + + +| 47 | __________________________________________________________________________|____________| Intestine Large, Rectum | + + + + + + + + + + + + + + I + + + + + + + + + +| 46 | Inflammation, Acute | 2 2 | 2 2.0| __________________________________________________________________________|____________| Intestine Large, Cecum | + + + + + + + + + + + + + + + + + + + + + + + + +| 46 | Diverticulum | X | 1 | Mineralization | 2 | 1 2.0| __________________________________________________________________________|____________| Intestine Small, Duodenum | + + + + + + + + + + + + + + + + + + + + + + + + +| 48 | Inflammation, Acute | 3 | 1 3.0| Necrosis | 2 | 2 1.5| __________________________________________________________________________|____________| Intestine Small, Jejunum | + + + + + + + + + + + + + + + + + + + + + + + + +| 47 | __________________________________________________________________________|____________| Intestine Small, Ileum | + + + + + + + + + + + + + + + + + + + + + + + + +| 47 | Inflammation, Chronic Active | 4 | 1 4.0| Necrosis | 4 | 1 4.0| __________________________________________________________________________|____________| Liver | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Angiectasis | 2 2 1 2 | 5 1.6| Basophilic Focus | X X X X X X | 13 | Clear Cell Focus | X X X X | 7 | Degeneration, Cystic | 1 1 3 1 2 2 2 2| 14 1.9| Eosinophilic Focus | X | 3 | Fatty Change | 2 2 3 1 1| 9 1.8| Hepatodiaphragmatic Nodule | X X | 4 | Inflammation, Acute | 3 | 1 3.0| Necrosis | 3 | 1 3.0| Regeneration | | 2 3.0| Bile Duct, Hyperplasia | 2 1 3 1 1 1 1 2 2 1 1 2 2 2 2 1 1 1 3 3 | 36 1.7| Centrilobular, Necrosis | 1 1 1 1 1 | 10 1.5| __________________________________________________________________________|____________| Mesentery | + + + + | 11 | Thrombosis | | 1 4.0| Artery, Mineralization | | 1 4.0| Fat, Hemorrhage | 2 | 1 2.0| Fat, Inflammation, Chronic Active | | 1 2.0| Fat, Necrosis | 2 2 2 | 8 2.0| __________________________________________________________________________|____________| Pancreas | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Atrophy | 1 2 2 2 2 2 1 1 2 1 2 2 2 2 | 23 1.8| Basophilic Focus | X | 1 | Hyperplasia | 3 2 2 3 | 9 2.6| __________________________________________________________________________|____________| Salivary Glands | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | __________________________________________________________________________|____________| Stomach, Forestomach | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | __________________________________________________________________________________________________________________________________ * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade + : Tissue examined microscopically M : Missing tissue 1-4 : Lesion qualified as: X : Lesion present but not qualified A : Autolysis precludes examination 1) Minimal 3) Moderate I : Insufficient tissue BLANK : Not examined 2) Mild 4) Marked Page 50 NTP Experiment-Test: 05135-07 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOPRENE Date: 09/24/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 10:01:23 __________________________________________________________________________________________________________________________________ | 6| 6| 7| 7| 6| 7| 6| 7| 5| 5| 7| 7| 5| 5| 4| 6| 6| 7| 7| 7| 6| 5| 5| 7| 6| | DAY ON TEST | 6| 6| 3| 3| 8| 2| 8| 3| 8| 3| 3| 3| 4| 6| 5| 2| 9| 3| 3| 3| 8| 5| 9| 3| 7| | | 7| 8| 3| 3| 3| 8| 1| 3| 0| 7| 3| 3| 1| 6| 4| 1| 5| 3| 3| 3| 4| 5| 4| 3| 0| T (*) | _____________________________________________________________________________________________________________________| | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| O | FISCHER 344 RATS MALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| T | ANIMAL ID | 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| A | 700 PPM | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5| L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | __________________________________________________________________________________________________________________________________ ALIMENTARY SYSTEM - cont | | | | | | Hyperplasia, Squamous | | 1 1.0| Inflammation, Acute | 2 | 1 2.0| Mineralization | 2 | 2 2.5| Necrosis | 4 2 2 3| 10 3.0| __________________________________________________________________________|____________| Stomach, Glandular | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Mineralization | 4 3 | 4 3.0| Necrosis | 2 2 2 2 | 7 2.4| __________________________________________________________________________|____________| Tongue | + | 1 | Hyperplasia | 1 | 1 1.0| _____________________________________________________________________________________________________________________| | CARDIOVASCULAR SYSTEM | | | | | | __________________________________________________________________________|____________| Blood Vessel | + | 2 | Aorta, Mineralization | 4 | 2 4.0| __________________________________________________________________________|____________| Heart | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Cardiomyopathy | 2 2 2 2 2 2 3 2 2 3 3 2 1 2 2 3 2 3 2 2 2 | 44 2.2| Artery, Mineralization | 4 | 2 3.5| Atrium, Thrombosis | 3 | 3 2.7| _____________________________________________________________________________________________________________________| | ENDOCRINE SYSTEM | | | | | | __________________________________________________________________________|____________| Adrenal Cortex | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Hyperplasia | 2 2 2 2 2 2 1 2 3 2 | 19 1.9| Hypertrophy | 2 | 4 2.3| Necrosis | | 1 2.0| Vacuolization Cytoplasmic | 2 | 3 1.7| __________________________________________________________________________|____________| Adrenal Medulla | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Hyperplasia | 3 3 2 2 2 2 2 3 3 2 2 3 3| 25 2.3| Bilateral, Hyperplasia | | 2 2.5| __________________________________________________________________________|____________| Islets, Pancreatic | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Hyperplasia | 2 3 3 | 3 2.7| __________________________________________________________________________|____________| Parathyroid Gland | + M + M + + + + + + + + M + + + + + + + + + + + +| 45 | Hyperplasia | 2 2 4 3 | 8 2.8| __________________________________________________________________________|____________| Pituitary Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Pars Distalis, Hyperplasia | 3 1 3 3 3 3 | 9 2.6| __________________________________________________________________________|____________| Thyroid Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| 49 | C-Cell, Hyperplasia | 1 1 2 1 1 1 1 1 2 1 2 3 1 2 2| 30 1.5| _____________________________________________________________________________________________________________________| | GENERAL BODY SYSTEM | | | | | | __________________________________________________________________________|____________| Peritoneum | + | 1 | _____________________________________________________________________________________________________________________| | GENITAL SYSTEM | | | __________________________________________________________________________________________________________________________________ * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade + : Tissue examined microscopically M : Missing tissue 1-4 : Lesion qualified as: X : Lesion present but not qualified A : Autolysis precludes examination 1) Minimal 3) Moderate I : Insufficient tissue BLANK : Not examined 2) Mild 4) Marked Page 51 NTP Experiment-Test: 05135-07 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOPRENE Date: 09/24/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 10:01:23 __________________________________________________________________________________________________________________________________ | 6| 6| 7| 7| 6| 7| 6| 7| 5| 5| 7| 7| 5| 5| 4| 6| 6| 7| 7| 7| 6| 5| 5| 7| 6| | DAY ON TEST | 6| 6| 3| 3| 8| 2| 8| 3| 8| 3| 3| 3| 4| 6| 5| 2| 9| 3| 3| 3| 8| 5| 9| 3| 7| | | 7| 8| 3| 3| 3| 8| 1| 3| 0| 7| 3| 3| 1| 6| 4| 1| 5| 3| 3| 3| 4| 5| 4| 3| 0| T (*) | _____________________________________________________________________________________________________________________| | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| O | FISCHER 344 RATS MALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| T | ANIMAL ID | 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| A | 700 PPM | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5| L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | __________________________________________________________________________________________________________________________________ GENITAL SYSTEM - cont | | | | | | | | | __________________________________________________________________________|____________| Epididymis | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Granuloma Sperm | 3 | 1 3.0| __________________________________________________________________________|____________| Preputial Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Inflammation, Chronic Active | | 1 4.0| __________________________________________________________________________|____________| Prostate | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Hyperplasia | 3 2 2 2 2 4 2 | 15 2.3| Inflammation, Chronic Active | 3 | 1 3.0| __________________________________________________________________________|____________| Seminal Vesicle | + + + + + + + + + + + + + + + + A + + + + + + + +| 47 | __________________________________________________________________________|____________| Testes | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Atrophy | 3 | 1 3.0| Artery, Inflammation, Chronic Active | | 1 3.0| Interstitial Cell, Hyperplasia | 3 | 8 2.0| _____________________________________________________________________________________________________________________| | HEMATOPOIETIC SYSTEM | | | | | | __________________________________________________________________________|____________| Bone Marrow | + + + + + + + + + + + + + + + + + + + + + + + + +| 49 | __________________________________________________________________________|____________| Lymph Node | + + + + | 7 | __________________________________________________________________________|____________| Lymph Node, Bronchial | + + + + + + + + + + M + + + M + + + + + M + + + M| 42 | __________________________________________________________________________|____________| Lymph Node, Mandibular | + + + + + + + + + + + + + M + + M + + + + + + + +| 46 | __________________________________________________________________________|____________| Lymph Node, Mesenteric | + + + + + + + + + + + + + + + + + + + + + + + + +| 49 | __________________________________________________________________________|____________| Lymph Node, Mediastinal | + + + + + + + + + + + + + + + + M + + + + + + + M| 45 | __________________________________________________________________________|____________| Spleen | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Fibrosis | 1 2 2 2 2 2 1 2 2 2 2 2 2 2 | 24 2.0| Hematopoietic Cell Proliferation | 3 | 1 3.0| Necrosis | 2 2 | 2 2.0| __________________________________________________________________________|____________| Thymus | + + + + + + + + + + + + + + + + + + + + + + + + +| 49 | _____________________________________________________________________________________________________________________| | INTEGUMENTARY SYSTEM | | | | | | __________________________________________________________________________|____________| Mammary Gland | + + + + + + + + + + + + + + + + + + + + M + + + +| 47 | Galactocele | 3 2 | 2 2.5| __________________________________________________________________________|____________| Skin | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Inflammation, Chronic Active | 2 | 2 2.5| _____________________________________________________________________________________________________________________| | MUSCULOSKELETAL SYSTEM | | | | | | __________________________________________________________________________|____________| Bone | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Fibrous Osteodystrophy | 1 3 2 2| 6 2.2| Hyperostosis | | 1 1.0| _____________________________________________________________________________________________________________________| | NERVOUS SYSTEM | | | | | | __________________________________________________________________________________________________________________________________ * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade + : Tissue examined microscopically M : Missing tissue 1-4 : Lesion qualified as: X : Lesion present but not qualified A : Autolysis precludes examination 1) Minimal 3) Moderate I : Insufficient tissue BLANK : Not examined 2) Mild 4) Marked Page 52 NTP Experiment-Test: 05135-07 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOPRENE Date: 09/24/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 10:01:23 __________________________________________________________________________________________________________________________________ | 6| 6| 7| 7| 6| 7| 6| 7| 5| 5| 7| 7| 5| 5| 4| 6| 6| 7| 7| 7| 6| 5| 5| 7| 6| | DAY ON TEST | 6| 6| 3| 3| 8| 2| 8| 3| 8| 3| 3| 3| 4| 6| 5| 2| 9| 3| 3| 3| 8| 5| 9| 3| 7| | | 7| 8| 3| 3| 3| 8| 1| 3| 0| 7| 3| 3| 1| 6| 4| 1| 5| 3| 3| 3| 4| 5| 4| 3| 0| T (*) | _____________________________________________________________________________________________________________________| | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| O | FISCHER 344 RATS MALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| T | ANIMAL ID | 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| A | 700 PPM | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5| L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | __________________________________________________________________________________________________________________________________ NERVOUS SYSTEM - cont | | | | | | __________________________________________________________________________|____________| Brain | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | _____________________________________________________________________________________________________________________| | RESPIRATORY SYSTEM | | | | | | __________________________________________________________________________|____________| Larynx | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | __________________________________________________________________________|____________| Lung | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Inflammation, Chronic Active | 2 1 2 1 1 1 1 1 4 1 1 1 2 | 22 1.5| Mineralization | 3 | 2 3.5| Alveolar Epithelium, Hyperplasia | 1 1 | 4 1.0| Artery, Mediastinum, Mineralization | 4 | 2 3.5| __________________________________________________________________________|____________| Nose | + + + + + + + + + + + + + + + + + + + + + + + + +| 49 | Foreign Body | X | 3 | Inflammation, Suppurative | 1 2 1 2 2 2 1| 10 1.7| Thrombosis | 1 3 2 1 4 3 | 10 2.5| Olfactory Epithelium, Atrophy | 2 2 2 2 2| 8 1.9| Olfactory Epithelium, Metaplasia | 2 | 1 2.0| Respiratory Epithelium, Hyperplasia | 1 1 | 2 1.0| Respiratory Epithelium, Metaplasia, | | | Squamous | | 1 1.0| __________________________________________________________________________|____________| Trachea | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Mineralization | | 1 2.0| _____________________________________________________________________________________________________________________| | SPECIAL SENSES SYSTEM | | | | | | __________________________________________________________________________|____________| Eye | + | 3 | Cataract | 3 | 3 3.0| Hemorrhage | 3 | 1 3.0| Cornea, Inflammation, Chronic Active | 2 | 1 2.0| Retina, Atrophy | 3 | 3 3.3| __________________________________________________________________________|____________| Zymbal's Gland | + | 1 | _____________________________________________________________________________________________________________________| | URINARY SYSTEM | | | | | | __________________________________________________________________________|____________| Kidney | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Cyst | 2 2 | 4 2.3| Infarct | 2 3 | 2 2.5| Mineralization | 4 | 2 3.5| Nephropathy | 2 4 3 3 3 4 4 4 2 2 4 3 2 4 1 3 4 3 4 3 3 2 2 3 4| 50 2.9| Renal Tubule, Hyperplasia | 2 3 2 | 6 2.3| __________________________________________________________________________|____________| Urinary Bladder | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | __________________________________________________________________________________________________________________________________ * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade + : Tissue examined microscopically M : Missing tissue 1-4 : Lesion qualified as: X : Lesion present but not qualified A : Autolysis precludes examination 1) Minimal 3) Moderate I : Insufficient tissue BLANK : Not examined 2) Mild 4) Marked Page 53 NTP Experiment-Test: 05135-07 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOPRENE Date: 09/24/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 10:01:23 _____________________________________________________________________________________________________________________ | 5| 7| 4| 7| 0| 7| 7| 6| 6| 7| 6| 5| 7| 7| 7| 7| 6| 6| 7| 7| 6| 2| 5| 7| 7| DAY ON TEST | 8| 2| 7| 3| 2| 3| 3| 2| 6| 3| 8| 8| 3| 3| 2| 2| 1| 8| 0| 3| 2| 2| 6| 3| 3| | 8| 1| 8| 3| 6| 3| 4| 2| 4| 4| 5| 8| 3| 4| 7| 3| 8| 1| 9| 3| 1| 2| 6| 3| 3| _____________________________________________________________________________________________________________________| | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| FISCHER 344 RATS MALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| ANIMAL ID | 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 7000 PPM | 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2| | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| _____________________________________________________________________________________________________________________| ALIMENTARY SYSTEM | | | | __________________________________________________________________________| Esophagus | + + + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Intestine Large, Colon | + + + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Intestine Large, Rectum | + + + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Intestine Large, Cecum | + + + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Intestine Small, Duodenum | + + + + A + + + + + + + + + + + + + + + + + + + +| Inflammation, Acute | | Necrosis | 1 | __________________________________________________________________________| Intestine Small, Jejunum | + + A + A + + + + + + + + + + + A + + + + + + + +| __________________________________________________________________________| Intestine Small, Ileum | + + + + A + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Liver | + + + + + + + + + + + + + + + + + + + + + + + + +| Angiectasis | 2 2 | Basophilic Focus | X X X X X X X X| Clear Cell Focus | X X X| Degeneration, Cystic | 2 2 3 4 2 2 2| Eosinophilic Focus | X X | Fatty Change | 2 3 2 2 2 3 2 | Hematopoietic Cell Proliferation | 3 | Hepatodiaphragmatic Nodule | X X | Infarct | 4 | Mixed Cell Focus | | Necrosis | 2 | Regeneration | 4 2 3 | Artery, Inflammation, Chronic Active | 4 | Bile Duct, Hyperplasia | 2 2 2 2 1 3 2 2 2 2 2 4 1 4 | Centrilobular, Necrosis | 2 3 2 1 | __________________________________________________________________________| Mesentery | + + + + + | Artery, Mineralization | | Fat, Hemorrhage | | Fat, Inflammation, Chronic Active | 2 | Fat, Necrosis | 2 2 2 | __________________________________________________________________________| Pancreas | + + + + + + + + + + + + + + + + + + + + + + + + +| Atrophy | 3 1 2 1 2 2 2 2 | Basophilic Focus | X X | Hyperplasia | 2 1 2 | __________________________________________________________________________| Salivary Glands | + + + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Stomach, Forestomach | + + + + + + + + + + + + + + + + + + + + + + + + +| Fibrosis | | Hyperplasia, Squamous | | Necrosis | 3 2 1 3 | __________________________________________________________________________| Stomach, Glandular | + + + + + + + + + + + + + + + + + + + + + + + + +| Mineralization | | Necrosis | 1 2 1 | __________________________________________________________________________| Tongue | + | _____________________________________________________________________________________________________________________| CARDIOVASCULAR SYSTEM | | _____________________________________________________________________________________________________________________| Page 54 NTP Experiment-Test: 05135-07 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOPRENE Date: 09/24/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 10:01:23 _____________________________________________________________________________________________________________________ | 5| 7| 4| 7| 0| 7| 7| 6| 6| 7| 6| 5| 7| 7| 7| 7| 6| 6| 7| 7| 6| 2| 5| 7| 7| DAY ON TEST | 8| 2| 7| 3| 2| 3| 3| 2| 6| 3| 8| 8| 3| 3| 2| 2| 1| 8| 0| 3| 2| 2| 6| 3| 3| | 8| 1| 8| 3| 6| 3| 4| 2| 4| 4| 5| 8| 3| 4| 7| 3| 8| 1| 9| 3| 1| 2| 6| 3| 3| _____________________________________________________________________________________________________________________| | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| FISCHER 344 RATS MALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| ANIMAL ID | 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 7000 PPM | 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2| | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| _____________________________________________________________________________________________________________________| CARDIOVASCULAR SYSTEM - cont | | | | | | __________________________________________________________________________| Blood Vessel | | Aorta, Mineralization | | __________________________________________________________________________| Heart | + + + + + + + + + + + + + + + + + + + + + + + + +| Cardiomyopathy | 2 2 3 3 2 3 2 2 2 3 1 2 2 2 2 2 2 2| Artery, Mineralization | | Atrium, Thrombosis | 2 4 3 | _____________________________________________________________________________________________________________________| ENDOCRINE SYSTEM | | | | __________________________________________________________________________| Adrenal Cortex | + + + + + + + + + + + + + + + + + + + + + + + + +| Atrophy | 3 | Degeneration, Cystic | | Hyperplasia | 2 2 1 2 1 2 2 2 2 2 2 2 | Hypertrophy | | Thrombosis | 2 | Vacuolization Cytoplasmic | 2 2 | __________________________________________________________________________| Adrenal Medulla | + + + + + + + + + + + + + + + + + + + + + + + + +| Hyperplasia | 3 3 2 2 2 2 2 1 2 2 | Thrombosis | | __________________________________________________________________________| Islets, Pancreatic | + + + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Parathyroid Gland | + M + + + + + + + + + + + M + + + + + + + + + + +| Hyperplasia | 3 4 1 2| __________________________________________________________________________| Pituitary Gland | + + + + + + + + + + + + + + + + + + + + + + M + +| Pars Distalis, Hyperplasia | 2 4 3 2 3 | Pars Intermedia, Hyperplasia | | __________________________________________________________________________| Thyroid Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| C-Cell, Hyperplasia | 1 1 2 1 1 2 1 2 1 2 1 1 2 1 1 1| _____________________________________________________________________________________________________________________| GENERAL BODY SYSTEM | | | | __________________________________________________________________________| Peritoneum | + + M | _____________________________________________________________________________________________________________________| GENITAL SYSTEM | | | | __________________________________________________________________________| Epididymis | + + + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Preputial Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| Hyperplasia | 3 | Inflammation, Chronic Active | | __________________________________________________________________________| Prostate | + + + + + + + + + + + + + + + + + + + + + + + + +| Hyperplasia | 3 3 2 2 4 2 2 2 2 1 | Inflammation, Chronic Active | 3 2 1 2 | __________________________________________________________________________| Seminal Vesicle | + + + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Testes | + + + + + + + + + + + + + + + + + + + + + + + + +| _____________________________________________________________________________________________________________________| HEMATOPOIETIC SYSTEM | | | | __________________________________________________________________________| Bone Marrow | + + + + + + + + + + + + + + + + + + + + + + + + +| _____________________________________________________________________________________________________________________| Page 55 NTP Experiment-Test: 05135-07 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOPRENE Date: 09/24/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 10:01:23 _____________________________________________________________________________________________________________________ | 5| 7| 4| 7| 0| 7| 7| 6| 6| 7| 6| 5| 7| 7| 7| 7| 6| 6| 7| 7| 6| 2| 5| 7| 7| DAY ON TEST | 8| 2| 7| 3| 2| 3| 3| 2| 6| 3| 8| 8| 3| 3| 2| 2| 1| 8| 0| 3| 2| 2| 6| 3| 3| | 8| 1| 8| 3| 6| 3| 4| 2| 4| 4| 5| 8| 3| 4| 7| 3| 8| 1| 9| 3| 1| 2| 6| 3| 3| _____________________________________________________________________________________________________________________| | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| FISCHER 344 RATS MALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| ANIMAL ID | 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 7000 PPM | 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2| | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| _____________________________________________________________________________________________________________________| HEMATOPOIETIC SYSTEM - cont | | | | Myelofibrosis | | Necrosis | 2 | __________________________________________________________________________| Lymph Node | + + + + + | Renal, Hemorrhage | | __________________________________________________________________________| Lymph Node, Bronchial | + + + M + + + + + M M + M + M + + M M + + M + + M| __________________________________________________________________________| Lymph Node, Mandibular | + + + M + + + + + + M + + + M + M + + + + + + + +| __________________________________________________________________________| Lymph Node, Mesenteric | + + + + + + + + + + + + + + + + + + + + + + + + +| Infiltration Cellular, Plasma Cell | | __________________________________________________________________________| Lymph Node, Mediastinal | + + + + M + M + + + + + + + + + + M + + + + + + +| __________________________________________________________________________| Spleen | + + + + + + + + + + + + + + + + + + + + + + + + +| Depletion Cellular | | Fibrosis | 3 2 3 2 3 2 2 3 1 3 2| Hematopoietic Cell Proliferation | 3 3 | Necrosis | | __________________________________________________________________________| Thymus | + + + + + + + + + + + + M + + + + + + + + + + + +| Atrophy | 3 | _____________________________________________________________________________________________________________________| INTEGUMENTARY SYSTEM | | | | __________________________________________________________________________| Mammary Gland | + + + + M + + + + + + + M + + M + + + + + + + + +| Galactocele | 2 | __________________________________________________________________________| Skin | + + + + + + + + + + + + + + + + + + + + + + + + +| Cyst Epithelial Inclusion | X X | _____________________________________________________________________________________________________________________| MUSCULOSKELETAL SYSTEM | | | | __________________________________________________________________________| Bone | + + + + + + + + + + + + + + + + + + + + + + + + +| Fibrous Osteodystrophy | 1 | Hyperostosis | 1 1 | _____________________________________________________________________________________________________________________| NERVOUS SYSTEM | | | | __________________________________________________________________________| Brain | + + + + + + + + + + + + + + + + + + + + + + + + +| _____________________________________________________________________________________________________________________| RESPIRATORY SYSTEM | | | | __________________________________________________________________________| Larynx | + + + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________________________________________| Lung | + + + + + + + + + + + + + + + + + + + + + + + + +| Inflammation, Chronic Active | 1 1 1 1 1 1 2 1| Mineralization | | Thrombosis | | Alveolar Epithelium, Hyperplasia | 2 1 1 2 1 | Artery, Mediastinum, Mineralization | | __________________________________________________________________________| Nose | + + + + + + + + + + + + + + + + + + + + + + + + +| Foreign Body | X | Inflammation, Suppurative | 2 2 1 1 2 | Thrombosis | 4 3 1 | Olfactory Epithelium, Atrophy | 2 2 | _____________________________________________________________________________________________________________________| Page 56 NTP Experiment-Test: 05135-07 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOPRENE Date: 09/24/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 10:01:23 _____________________________________________________________________________________________________________________ | 5| 7| 4| 7| 0| 7| 7| 6| 6| 7| 6| 5| 7| 7| 7| 7| 6| 6| 7| 7| 6| 2| 5| 7| 7| DAY ON TEST | 8| 2| 7| 3| 2| 3| 3| 2| 6| 3| 8| 8| 3| 3| 2| 2| 1| 8| 0| 3| 2| 2| 6| 3| 3| | 8| 1| 8| 3| 6| 3| 4| 2| 4| 4| 5| 8| 3| 4| 7| 3| 8| 1| 9| 3| 1| 2| 6| 3| 3| _____________________________________________________________________________________________________________________| | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| FISCHER 344 RATS MALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| ANIMAL ID | 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 7000 PPM | 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| 2| 2| 2| 2| 2| | 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| _____________________________________________________________________________________________________________________| RESPIRATORY SYSTEM - cont | | | | Olfactory Epithelium, Metaplasia | 2 | Respiratory Epithelium, Hyperplasia | 1 1 | __________________________________________________________________________| Trachea | + + + + + + + + + + + + + + + + + + + + + + + + +| _____________________________________________________________________________________________________________________| SPECIAL SENSES SYSTEM | | | | __________________________________________________________________________| Eye | + | Cataract | 3 | Retina, Atrophy | 4 | __________________________________________________________________________| Zymbal's Gland | | _____________________________________________________________________________________________________________________| URINARY SYSTEM | | | | __________________________________________________________________________| Kidney | + + + + + + + + + + + + + + + + + + + + + + + + +| Cyst | 4 | Mineralization | | Nephropathy | 2 4 2 3 4 4 3 3 3 3 2 3 2 3 3 3 4 4 4 3 2 2 3 4| Renal Tubule, Hyperplasia | 4 1 | __________________________________________________________________________| Urinary Bladder | + + + + + + + + + + + + + + + + + + + + + + + + +| Hemorrhage | 4 | Inflammation, Acute | | Inflammation, Chronic Active | | Necrosis | | _____________________________________________________________________________________________________________________| Page 57 NTP Experiment-Test: 05135-07 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOPRENE Date: 09/24/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 10:01:23 __________________________________________________________________________________________________________________________________ | 7| 6| 6| 3| 7| 7| 6| 6| 7| 5| 7| 5| 6| 7| 5| 6| 6| 7| 7| 5| 6| 7| 5| 6| 6| | DAY ON TEST | 3| 1| 1| 6| 0| 3| 3| 8| 3| 4| 3| 8| 6| 3| 1| 8| 6| 2| 3| 8| 6| 2| 6| 6| 9| | | 3| 2| 1| 1| 8| 3| 0| 6| 3| 8| 3| 1| 8| 4| 7| 0| 7| 7| 3| 1| 7| 1| 0| 4| 1| T (*) | _____________________________________________________________________________________________________________________| | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| O | FISCHER 344 RATS MALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| T | ANIMAL ID | 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| A | 7000 PPM | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5| L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | __________________________________________________________________________________________________________________________________ ALIMENTARY SYSTEM | | | | | | __________________________________________________________________________|____________| Esophagus | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | __________________________________________________________________________|____________| Intestine Large, Colon | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | __________________________________________________________________________|____________| Intestine Large, Rectum | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | __________________________________________________________________________|____________| Intestine Large, Cecum | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | __________________________________________________________________________|____________| Intestine Small, Duodenum | + + + + + + + + + + + + + + + + + + + + + + + + +| 49 | Inflammation, Acute | 2 | 1 2.0| Necrosis | 1 | 2 1.0| __________________________________________________________________________|____________| Intestine Small, Jejunum | + + + + + + + + + + + + + + + + + + + + + + + + +| 47 | __________________________________________________________________________|____________| Intestine Small, Ileum | + + + + + + + + + + + + + + + + + + + + + + + + +| 49 | __________________________________________________________________________|____________| Liver | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Angiectasis | 1 | 3 1.7| Basophilic Focus | X X X X X X X X | 16 | Clear Cell Focus | X X X X X | 8 | Degeneration, Cystic | 1 3 1 2 2 2 1 2 1 1| 17 1.9| Eosinophilic Focus | X | 3 | Fatty Change | 1 1 1 2| 11 1.9| Hematopoietic Cell Proliferation | | 1 3.0| Hepatodiaphragmatic Nodule | X X | 4 | Infarct | | 1 4.0| Mixed Cell Focus | X | 1 | Necrosis | | 1 2.0| Regeneration | 4 2 4 | 6 3.2| Artery, Inflammation, Chronic Active | | 1 4.0| Bile Duct, Hyperplasia | 3 3 2 1 1 2 1 2 2 1 1 1 2 1 3 | 29 2.0| Centrilobular, Necrosis | 2 1 1 3 2 | 9 1.9| __________________________________________________________________________|____________| Mesentery | + + + + + + | 11 | Artery, Mineralization | 1 3 | 2 2.0| Fat, Hemorrhage | 3 | 1 3.0| Fat, Inflammation, Chronic Active | | 1 2.0| Fat, Necrosis | 2 2 2 | 6 2.0| __________________________________________________________________________|____________| Pancreas | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Atrophy | 2 2 2 2 2 1 2| 15 1.9| Basophilic Focus | X | 3 | Hyperplasia | 4 2 4 2 | 7 2.4| __________________________________________________________________________|____________| Salivary Glands | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | __________________________________________________________________________|____________| Stomach, Forestomach | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Fibrosis | 4 | 1 4.0| Hyperplasia, Squamous | 1 | 1 1.0| Necrosis | 2 2 3 1 3 2 3 3| 12 2.3| __________________________________________________________________________________________________________________________________ * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade + : Tissue examined microscopically M : Missing tissue 1-4 : Lesion qualified as: X : Lesion present but not qualified A : Autolysis precludes examination 1) Minimal 3) Moderate I : Insufficient tissue BLANK : Not examined 2) Mild 4) Marked Page 58 NTP Experiment-Test: 05135-07 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOPRENE Date: 09/24/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 10:01:23 __________________________________________________________________________________________________________________________________ | 7| 6| 6| 3| 7| 7| 6| 6| 7| 5| 7| 5| 6| 7| 5| 6| 6| 7| 7| 5| 6| 7| 5| 6| 6| | DAY ON TEST | 3| 1| 1| 6| 0| 3| 3| 8| 3| 4| 3| 8| 6| 3| 1| 8| 6| 2| 3| 8| 6| 2| 6| 6| 9| | | 3| 2| 1| 1| 8| 3| 0| 6| 3| 8| 3| 1| 8| 4| 7| 0| 7| 7| 3| 1| 7| 1| 0| 4| 1| T (*) | _____________________________________________________________________________________________________________________| | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| O | FISCHER 344 RATS MALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| T | ANIMAL ID | 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| A | 7000 PPM | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5| L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | __________________________________________________________________________________________________________________________________ ALIMENTARY SYSTEM - cont | | | | | | __________________________________________________________________________|____________| Stomach, Glandular | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Mineralization | 3 3 4 2 | 4 3.0| Necrosis | 1 1 1 2 2 2 | 9 1.4| __________________________________________________________________________|____________| Tongue | | 1 | _____________________________________________________________________________________________________________________| | CARDIOVASCULAR SYSTEM | | | | | | __________________________________________________________________________|____________| Blood Vessel | + + + | 3 | Aorta, Mineralization | 3 4 4 | 3 3.7| __________________________________________________________________________|____________| Heart | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Cardiomyopathy | 3 2 3 2 1 2 2 2 2 2 2 2 1 2 1 2 1 3 4 2 | 38 2.1| Artery, Mineralization | 3 3 4 3 | 4 3.3| Atrium, Thrombosis | 2 2 | 5 2.6| _____________________________________________________________________________________________________________________| | ENDOCRINE SYSTEM | | | | | | __________________________________________________________________________|____________| Adrenal Cortex | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Atrophy | | 1 3.0| Degeneration, Cystic | 3 | 1 3.0| Hyperplasia | 2 2 2 2 2 2 1 1| 20 1.8| Hypertrophy | 4 2 2 2 | 4 2.5| Thrombosis | | 1 2.0| Vacuolization Cytoplasmic | 3 2 2 2 | 6 2.2| __________________________________________________________________________|____________| Adrenal Medulla | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Hyperplasia | 2 2 2 1 1 3 3 3 4 2 3 | 21 2.2| Thrombosis | 2 | 1 2.0| __________________________________________________________________________|____________| Islets, Pancreatic | + + + I + + + + + + + + + + + + + + + + + + + + +| 49 | __________________________________________________________________________|____________| Parathyroid Gland | + + + + + + + + + + + M + + + + + + + + + + + + +| 47 | Hyperplasia | 4 2 1 3 2 3 3 4 2 | 13 2.6| __________________________________________________________________________|____________| Pituitary Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| 49 | Pars Distalis, Hyperplasia | 3 3 2 2 3 3 | 11 2.7| Pars Intermedia, Hyperplasia | 4 | 1 4.0| __________________________________________________________________________|____________| Thyroid Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | C-Cell, Hyperplasia | 2 3 1 2 1 1 1 3 2 1 1 2 1 1 1 1 3 1| 34 1.4| _____________________________________________________________________________________________________________________| | GENERAL BODY SYSTEM | | | | | | __________________________________________________________________________|____________| Peritoneum | + | 3 | _____________________________________________________________________________________________________________________| | GENITAL SYSTEM | | | | | | __________________________________________________________________________|____________| Epididymis | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | __________________________________________________________________________|____________| Preputial Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | __________________________________________________________________________________________________________________________________ * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade + : Tissue examined microscopically M : Missing tissue 1-4 : Lesion qualified as: X : Lesion present but not qualified A : Autolysis precludes examination 1) Minimal 3) Moderate I : Insufficient tissue BLANK : Not examined 2) Mild 4) Marked Page 59 NTP Experiment-Test: 05135-07 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOPRENE Date: 09/24/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 10:01:23 __________________________________________________________________________________________________________________________________ | 7| 6| 6| 3| 7| 7| 6| 6| 7| 5| 7| 5| 6| 7| 5| 6| 6| 7| 7| 5| 6| 7| 5| 6| 6| | DAY ON TEST | 3| 1| 1| 6| 0| 3| 3| 8| 3| 4| 3| 8| 6| 3| 1| 8| 6| 2| 3| 8| 6| 2| 6| 6| 9| | | 3| 2| 1| 1| 8| 3| 0| 6| 3| 8| 3| 1| 8| 4| 7| 0| 7| 7| 3| 1| 7| 1| 0| 4| 1| T (*) | _____________________________________________________________________________________________________________________| | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| O | FISCHER 344 RATS MALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| T | ANIMAL ID | 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| A | 7000 PPM | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5| L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | __________________________________________________________________________________________________________________________________ GENITAL SYSTEM - cont | | | | | | Hyperplasia | | 1 3.0| Inflammation, Chronic Active | 2 3 2 | 3 2.3| __________________________________________________________________________|____________| Prostate | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Hyperplasia | 3 2 1 2 2 1 2| 17 2.1| Inflammation, Chronic Active | 4 2 | 6 2.3| __________________________________________________________________________|____________| Seminal Vesicle | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | __________________________________________________________________________|____________| Testes | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | _____________________________________________________________________________________________________________________| | HEMATOPOIETIC SYSTEM | | | | | | __________________________________________________________________________|____________| Bone Marrow | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Myelofibrosis | 2 | 1 2.0| Necrosis | 2 | 2 2.0| __________________________________________________________________________|____________| Lymph Node | + + + + | 9 | Renal, Hemorrhage | 2 | 1 2.0| __________________________________________________________________________|____________| Lymph Node, Bronchial | + M + + + + + M + M M + M + + + + M + + + + + + +| 35 | __________________________________________________________________________|____________| Lymph Node, Mandibular | M + + + + + + + + + + + + + + + + + + + + + + + M| 44 | __________________________________________________________________________|____________| Lymph Node, Mesenteric | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Infiltration Cellular, Plasma Cell | 3 | 1 3.0| __________________________________________________________________________|____________| Lymph Node, Mediastinal | + + M + + M + + + + + + + + + + + + + + + + + M +| 44 | __________________________________________________________________________|____________| Spleen | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Depletion Cellular | 3| 1 3.0| Fibrosis | 1 3 3 3 3 2 1 2 2 2 2 | 22 2.3| Hematopoietic Cell Proliferation | 2 4 3 | 5 3.0| Necrosis | 3 | 1 3.0| __________________________________________________________________________|____________| Thymus | + + + + + + + + + + + + + + + + + M + + + + + M +| 47 | Atrophy | | 1 3.0| _____________________________________________________________________________________________________________________| | INTEGUMENTARY SYSTEM | | | | | | __________________________________________________________________________|____________| Mammary Gland | + + + M + + + + + + + M + + + + M + + + + + + + +| 44 | Galactocele | 3 2 | 3 2.3| __________________________________________________________________________|____________| Skin | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Cyst Epithelial Inclusion | | 2 | _____________________________________________________________________________________________________________________| | MUSCULOSKELETAL SYSTEM | | | | | | __________________________________________________________________________|____________| Bone | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Fibrous Osteodystrophy | 2 2 2 2 4 2 | 7 2.1| Hyperostosis | | 2 1.0| _____________________________________________________________________________________________________________________| | NERVOUS SYSTEM | | | | | | __________________________________________________________________________________________________________________________________ * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade + : Tissue examined microscopically M : Missing tissue 1-4 : Lesion qualified as: X : Lesion present but not qualified A : Autolysis precludes examination 1) Minimal 3) Moderate I : Insufficient tissue BLANK : Not examined 2) Mild 4) Marked Page 60 NTP Experiment-Test: 05135-07 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: CHRONIC ISOPRENE Date: 09/24/97 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 10:01:23 __________________________________________________________________________________________________________________________________ | 7| 6| 6| 3| 7| 7| 6| 6| 7| 5| 7| 5| 6| 7| 5| 6| 6| 7| 7| 5| 6| 7| 5| 6| 6| | DAY ON TEST | 3| 1| 1| 6| 0| 3| 3| 8| 3| 4| 3| 8| 6| 3| 1| 8| 6| 2| 3| 8| 6| 2| 6| 6| 9| | | 3| 2| 1| 1| 8| 3| 0| 6| 3| 8| 3| 1| 8| 4| 7| 0| 7| 7| 3| 1| 7| 1| 0| 4| 1| T (*) | _____________________________________________________________________________________________________________________| | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| O | FISCHER 344 RATS MALE | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| T | ANIMAL ID | 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| 6| A | 7000 PPM | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| 4| 4| 4| 4| 5| L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | __________________________________________________________________________________________________________________________________ NERVOUS SYSTEM - cont | | | | | | __________________________________________________________________________|____________| Brain | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | _____________________________________________________________________________________________________________________| | RESPIRATORY SYSTEM | | | | | | __________________________________________________________________________|____________| Larynx | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | __________________________________________________________________________|____________| Lung | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Inflammation, Chronic Active | 1 1 1 1 1 1 1| 15 1.1| Mineralization | 2 4 | 2 3.0| Thrombosis | 2 | 1 2.0| Alveolar Epithelium, Hyperplasia | 1 4 1 1 2 | 10 1.6| Artery, Mediastinum, Mineralization | 3 3 | 2 3.0| __________________________________________________________________________|____________| Nose | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Foreign Body | X | 2 | Inflammation, Suppurative | 2 1 2 1 | 9 1.6| Thrombosis | 2 4 | 5 2.8| Olfactory Epithelium, Atrophy | | 2 2.0| Olfactory Epithelium, Metaplasia | 1 | 2 1.5| Respiratory Epithelium, Hyperplasia | | 2 1.0| __________________________________________________________________________|____________| Trachea | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | _____________________________________________________________________________________________________________________| | SPECIAL SENSES SYSTEM | | | | | | __________________________________________________________________________|____________| Eye | + | 2 | Cataract | 3 | 2 3.0| Retina, Atrophy | 3 | 2 3.5| __________________________________________________________________________|____________| Zymbal's Gland | + | 1 | _____________________________________________________________________________________________________________________| | URINARY SYSTEM | | | | | | __________________________________________________________________________|____________| Kidney | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Cyst | 2 | 2 3.0| Mineralization | 2 2 3 | 3 2.3| Nephropathy | 4 2 4 1 4 4 4 3 4 4 3 2 3 4 2 4 3 4 3 2 4 4 2 4 4| 49 3.2| Renal Tubule, Hyperplasia | 2 3 4 2 4 4 | 8 3.0| __________________________________________________________________________|____________| Urinary Bladder | + + + + + + + + + + + + + + + + + + + + + + + + +| 50 | Hemorrhage | | 1 4.0| Inflammation, Acute | 4 | 1 4.0| Inflammation, Chronic Active | 4 | 1 4.0| Necrosis | 3 | 1 3.0| __________________________________________________________________________________________________________________________________ * : Total animals with tissue examined microscopically; total animals with lesion and mean severity grade + : Tissue examined microscopically M : Missing tissue 1-4 : Lesion qualified as: X : Lesion present but not qualified A : Autolysis precludes examination 1) Minimal 3) Moderate I : Insufficient tissue BLANK : Not examined 2) Mild 4) Marked Page 61 ------------------------------------------------------------ ---------- END OF REPORT ---------- ------------------------------------------------------------