TDMS Study 05135-06 Pathology Tables
NTP Experiment-Test: 05135-06 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: SIX MONTH EXPOS. ISOPRENE Date: 10/15/04 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 13:31:26 Facility: Battelle Northwest Chemical CAS #: 78-79-5 Lock Date: None Cage Range: All Reasons For Removal: All Removal Date Range: All Treatment Groups: Include All Page 1 NTP Experiment-Test: 05135-06 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: SIX MONTH EXPOS. ISOPRENE Date: 10/15/04 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 13:31:26 _____________________________________________________________________________________________________________________ | 3| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 0| 3| 3| 3| 3| 3| 3| 1| 1| 1| 3| 1| 1| DAY ON TEST | 7| 8| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 9| 7| 7| 7| 7| 7| 7| 8| 8| 8| 7| 8| 8| | 3| 9| 3| 3| 3| 3| 3| 3| 1| 1| 3| 1| 0| 3| 3| 3| 3| 3| 3| 5| 3| 3| 3| 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| B6C3F1 MICE 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 | + + + + + + + + + + + + + + + + + + + + + + + + +| |__________________________________________________________________________| Gallbladder | + + + + + + + + + + + + A + + + + + + + + + + + +| |__________________________________________________________________________| Intestine Large, Colon | + + + + + + + + + + + + + + + + + + + + + + + + +| |__________________________________________________________________________| Intestine Large, Rectum | + + + + + + + + + + + + + + + + + M + + + + + + +| |__________________________________________________________________________| Intestine Large, Cecum | + + + + + + + + + + + + + + + + + + + + + + + + +| |__________________________________________________________________________| Intestine Small, Duodenum | + + + + + + + + + + + + A + + + + + + + + + + + +| |__________________________________________________________________________| Intestine Small, Jejunum | + + + + + + + + + + + + + + + + + + + + + + + + +| |__________________________________________________________________________| Intestine Small, Ileum | + + + + + + + + + + + + + + + + + + + + + + + + +| |__________________________________________________________________________| Liver | + + + + + + + + + + + + + + + + + + + + + + + + +| Basophilic Focus | 4 X X | Deformity | | Eosinophilic Focus | X | Vacuolization Cytoplasmic | 1 2 2 1 2 1 2 2 2 2 2 3 2 1 1 | |__________________________________________________________________________| Mesentery | + | Necrosis | 2 | |__________________________________________________________________________| Pancreas | + + + + + + + + + + + + + + + + + + + + + + + + +| Focal Cellular Change | 1 | |__________________________________________________________________________| Pharynx | + + + + + + + + + + + + + + + + + + + + + + + + +| |__________________________________________________________________________| Salivary Glands | + + + + + + + + + + + + + + + + + + + + + + + + +| Inflammation, Suppurative | 2 2 | |__________________________________________________________________________| Stomach, Forestomach | + + + + + + + + + + + + + + + + + + + + + + + + +| Epithelium, Hyperplasia | 2 | |__________________________________________________________________________| Stomach, Glandular | + + + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________|__________________________________________________________________________| Page 2 NTP Experiment-Test: 05135-06 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: SIX MONTH EXPOS. ISOPRENE Date: 10/15/04 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 13:31:26 _____________________________________________________________________________________________________________________ | 3| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 0| 3| 3| 3| 3| 3| 3| 1| 1| 1| 3| 1| 1| DAY ON TEST | 7| 8| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 9| 7| 7| 7| 7| 7| 7| 8| 8| 8| 7| 8| 8| | 3| 9| 3| 3| 3| 3| 3| 3| 1| 1| 3| 1| 0| 3| 3| 3| 3| 3| 3| 5| 3| 3| 3| 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| B6C3F1 MICE 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 - cont | | Ulcer | 1 | |__________________________________________________________________________| Tongue | + + + + + + + + + + + + + + + + + + + + + + + + +| |__________________________________________________________________________| Tooth | | _____________________________________________________________________________________________________________________| CARDIOVASCULAR SYSTEM | | |__________________________________________________________________________| Blood Vessel | + + + + + + + + + + + + + + + + + + + + + + + + +| |__________________________________________________________________________| Heart | + + + + + + + + + + + + + + + + + + + + + + + + +| Pericardium, Hemorrhage | | _____________________________________________________________________________________________________________________| ENDOCRINE SYSTEM | | |__________________________________________________________________________| Adrenal Cortex | + + + + + + + + + + + + + + + + + + + + + + + + +| Hemorrhage | | Hyperplasia | 1 1 1 1 1 | Hypertrophy, Focal | 1 1 1 | |__________________________________________________________________________| Adrenal Medulla | + + + + + + + + + + + + + + + M + + + + + + + + +| |__________________________________________________________________________| Islets, Pancreatic | + + + + + + + + + + + + + + + + + + + + + + + + +| Hyperplasia | 1 1 1 1 2 1 2 | |__________________________________________________________________________| Parathyroid Gland | + + + + + + + + + + M + + M + + M + + + M + + + +| |__________________________________________________________________________| Pituitary Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| Pars Distalis, Cyst | X X | Pars Intermedia, Hyperplasia | 4 | |__________________________________________________________________________| Thyroid Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| Cyst | X | _____________________________________________________________________________________________________________________| GENERAL BODY SYSTEM | | None | | _____________________________________________________________________________________________________________________| GENITAL SYSTEM | | __________________________________________|__________________________________________________________________________| Page 3 NTP Experiment-Test: 05135-06 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: SIX MONTH EXPOS. ISOPRENE Date: 10/15/04 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 13:31:26 _____________________________________________________________________________________________________________________ | 3| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 0| 3| 3| 3| 3| 3| 3| 1| 1| 1| 3| 1| 1| DAY ON TEST | 7| 8| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 9| 7| 7| 7| 7| 7| 7| 8| 8| 8| 7| 8| 8| | 3| 9| 3| 3| 3| 3| 3| 3| 1| 1| 3| 1| 0| 3| 3| 3| 3| 3| 3| 5| 3| 3| 3| 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| B6C3F1 MICE 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| __________________________________________|__________________________________________________________________________| GENITAL SYSTEM - cont | | |__________________________________________________________________________| Epididymis | + + + + + + + + + + + + + + + + + + + + + + + + +| |__________________________________________________________________________| Penis | + | |__________________________________________________________________________| Preputial Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| Inflammation, Suppurative | | |__________________________________________________________________________| Prostate | + M + + + + + + + + + + + + + + + + + + + + + + +| |__________________________________________________________________________| Seminal Vesicle | + + + + + + + + + + + + + + + + + + + + + + + + +| |__________________________________________________________________________| Testes | + + + + + + + + + + + + + + + + + + + + + + + + +| _____________________________________________________________________________________________________________________| HEMATOPOIETIC SYSTEM | | |__________________________________________________________________________| Bone Marrow | + + + + + + + + + + + + + + + + + + + + + + + + +| Hyperplasia | 3 | |__________________________________________________________________________| Lymph Node | + | Iliac, Hyperplasia | 2 | Inguinal, Hyperplasia | 2 | |__________________________________________________________________________| Lymph Node, Bronchial | + + + + + M M + + + + + + + + M M M + + + + + + +| |__________________________________________________________________________| Lymph Node, Mandibular | M M + + + M M + M M + + + + M + + M + + M + + M +| |__________________________________________________________________________| Lymph Node, Mesenteric | + + + + + + + + + + + + + + + + + + + + + + + + +| |__________________________________________________________________________| Lymph Node, Mediastinal | M + + M M M M + + + M M + M M + + + M + + M M M +| |__________________________________________________________________________| Spleen | + + + + + + + + + + + + + + + + + + + + + + + + +| Hematopoietic Cell Proliferation | 2 2 | Pigmentation, Melanin | 2 | |__________________________________________________________________________| Thymus | + + + + + + + + + + + + + + + + + + + + + + + + +| _____________________________________________________________________________________________________________________| INTEGUMENTARY SYSTEM | | __________________________________________|__________________________________________________________________________| Page 4 NTP Experiment-Test: 05135-06 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: SIX MONTH EXPOS. ISOPRENE Date: 10/15/04 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 13:31:26 _____________________________________________________________________________________________________________________ | 3| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 0| 3| 3| 3| 3| 3| 3| 1| 1| 1| 3| 1| 1| DAY ON TEST | 7| 8| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 9| 7| 7| 7| 7| 7| 7| 8| 8| 8| 7| 8| 8| | 3| 9| 3| 3| 3| 3| 3| 3| 1| 1| 3| 1| 0| 3| 3| 3| 3| 3| 3| 5| 3| 3| 3| 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| B6C3F1 MICE 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| __________________________________________|__________________________________________________________________________| INTEGUMENTARY SYSTEM - cont | | |__________________________________________________________________________| Mammary Gland | M M M M M M M M M M M M M M M M M M M M M M M M M| |__________________________________________________________________________| Skin | + + + + + + + + + + + + + + + + + + + + + + + + +| Prepuce, Inflammation, Chronic | 4 4 | _____________________________________________________________________________________________________________________| MUSCULOSKELETAL SYSTEM | | |__________________________________________________________________________| Bone | + + + + + + + + + + + + + + + + + + + + + + + + +| |__________________________________________________________________________| Skeletal Muscle | + + + + + + + + + + + + + + + + + + + + + + + + +| _____________________________________________________________________________________________________________________| NERVOUS SYSTEM | | |__________________________________________________________________________| Brain | + + + + + + + + + + + + + + + + + + + + + + + + +| Mineralization | 1 | |__________________________________________________________________________| Peripheral Nerve | + + + + + + + + + + + + + + + + + + + + + + + + +| |__________________________________________________________________________| Spinal Cord | + + + + + + + + + + + + + + + + + + + + + + + + +| Degeneration | 1 1 | Meninges, Hemorrhage | | _____________________________________________________________________________________________________________________| RESPIRATORY SYSTEM | | |__________________________________________________________________________| Larynx | + + + + + + + + + + + + + + + + + + + + + + + + +| |__________________________________________________________________________| Lung | + + + + + + + + + + + + + + + + + + + + + + + + +| Congestion | 2 2 | Hemorrhage | | Metaplasia, Osseous | 1 | Alveolar Epithelium, Hyperplasia | | |__________________________________________________________________________| Nose | + + + + + + + + + + + + + + + + + + + + + + + + +| Turbinate, Olfactory Epithelium, | | Degeneration | 1 | |__________________________________________________________________________| Trachea | + + + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________|__________________________________________________________________________| Page 5 NTP Experiment-Test: 05135-06 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: SIX MONTH EXPOS. ISOPRENE Date: 10/15/04 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 13:31:26 _____________________________________________________________________________________________________________________ | 3| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 0| 3| 3| 3| 3| 3| 3| 1| 1| 1| 3| 1| 1| DAY ON TEST | 7| 8| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 9| 7| 7| 7| 7| 7| 7| 8| 8| 8| 7| 8| 8| | 3| 9| 3| 3| 3| 3| 3| 3| 1| 1| 3| 1| 0| 3| 3| 3| 3| 3| 3| 5| 3| 3| 3| 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| B6C3F1 MICE 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 | | |__________________________________________________________________________| Eye | + + + + + + + + + + + + + + + + + + + + + + + + +| |__________________________________________________________________________| Harderian Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| Hyperplasia | 2 | |__________________________________________________________________________| Zymbal's Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| _____________________________________________________________________________________________________________________| URINARY SYSTEM | | |__________________________________________________________________________| Kidney | + + + + + + + + + + + + + + + + + + + + + + + + +| Bilateral, Fibrosis | 1 | Bilateral, Hydronephrosis | | Bilateral, Metaplasia, Osseous | | Bilateral, Pelvis, Inflammation, | | Suppurative | | Bilateral, Renal Tubule, Hyperplasia | 1 | |__________________________________________________________________________| Urinary Bladder | + + + + + + + + + + + + + + + + + + + + + + + + +| Calculus Micro Observation Only | | Dilatation | 2 | Inflammation, Suppurative | 1 | Transitional Epithelium, Hyperplasia | | __________________________________________|__________________________________________________________________________ Page 6 NTP Experiment-Test: 05135-06 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: SIX MONTH EXPOS. ISOPRENE Date: 10/15/04 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 13:31:26 __________________________________________________________________________________________________________________________________ | 1| 3| 3| 3| 3| 3| 3| 1| 3| 3| 3| 1| 1| 1| 1| | | DAY ON TEST | 8| 7| 7| 7| 7| 7| 7| 8| 7| 7| 7| 8| 8| 8| 8| | | | 3| 3| 3| 1| 3| 3| 1| 2| 3| 3| 3| 5| 5| 5| 5| | | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| | O | B6C3F1 MICE MALE | 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| | A | CONTROL | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| | L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | | _____________________________________________________________________________________________________________________|____________| ALIMENTARY SYSTEM | | | |__________________________________________________________________________|____________| Esophagus | + + + + + + + + + + + + + + + | 40 | |__________________________________________________________________________|____________| Gallbladder | + + + + + + + + + + + + + + + | 39 | |__________________________________________________________________________|____________| Intestine Large, Colon | + + + + + + + + + + + + + + + | 40 | |__________________________________________________________________________|____________| Intestine Large, Rectum | + + + + + + + + + + + + + + + | 39 | |__________________________________________________________________________|____________| Intestine Large, Cecum | + + + + + + + + + + + + + + + | 40 | |__________________________________________________________________________|____________| Intestine Small, Duodenum | + + + + + + + + + + + + + + + | 39 | |__________________________________________________________________________|____________| Intestine Small, Jejunum | + + + + + + + + + + + + + + + | 40 | |__________________________________________________________________________|____________| Intestine Small, Ileum | + + + + + + + + + + + + + + + | 40 | |__________________________________________________________________________|____________| Liver | + + + + + + + + + + + + + + + | 40 | Basophilic Focus | | 3 4.0| Deformity | X | 1 | Eosinophilic Focus | | 1 | Vacuolization Cytoplasmic | 1 2 2 2 2 2 1 | 22 1.7| |__________________________________________________________________________|____________| Mesentery | | 1 | Necrosis | | 1 2.0| |__________________________________________________________________________|____________| Pancreas | + + + + + + + + + + + + + + + | 40 | Focal Cellular Change | 1 | 2 1.0| |__________________________________________________________________________|____________| Pharynx | + + + + + + + + + + + + + + + | 40 | |__________________________________________________________________________|____________| Salivary Glands | + + + + + + + + + + + + + + + | 40 | Inflammation, Suppurative | | 2 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 7 NTP Experiment-Test: 05135-06 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: SIX MONTH EXPOS. ISOPRENE Date: 10/15/04 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 13:31:26 __________________________________________________________________________________________________________________________________ | 1| 3| 3| 3| 3| 3| 3| 1| 3| 3| 3| 1| 1| 1| 1| | | DAY ON TEST | 8| 7| 7| 7| 7| 7| 7| 8| 7| 7| 7| 8| 8| 8| 8| | | | 3| 3| 3| 1| 3| 3| 1| 2| 3| 3| 3| 5| 5| 5| 5| | | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| | O | B6C3F1 MICE MALE | 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| | A | CONTROL | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| | L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | | _____________________________________________________________________________________________________________________|____________| ALIMENTARY SYSTEM - cont | | | Stomach, Forestomach | + + + + + + + + + + + + + + + | 40 | Epithelium, Hyperplasia | | 1 2.0| |__________________________________________________________________________|____________| Stomach, Glandular | + + + + + + + + + + + + + + + | 40 | Ulcer | | 1 1.0| |__________________________________________________________________________|____________| Tongue | + + + + + + + + + + + + + + + | 40 | |__________________________________________________________________________|____________| Tooth | + | 1 | _____________________________________________________________________________________________________________________| | CARDIOVASCULAR SYSTEM | | | |__________________________________________________________________________|____________| Blood Vessel | + + + + + + + + + + + + + + + | 40 | |__________________________________________________________________________|____________| Heart | + + + + + + + + + + + + + + + | 40 | Pericardium, Hemorrhage | 4 | 1 4.0| _____________________________________________________________________________________________________________________| | ENDOCRINE SYSTEM | | | |__________________________________________________________________________|____________| Adrenal Cortex | + + + + + + + + + + + + + + + | 40 | Hemorrhage | 4 | 1 4.0| Hyperplasia | 1 | 6 1.0| Hypertrophy, Focal | 1 1 | 5 1.0| |__________________________________________________________________________|____________| Adrenal Medulla | + + + + + + + + + + + + + + + | 39 | |__________________________________________________________________________|____________| Islets, Pancreatic | + + + + + + + + + + + + + + + | 40 | Hyperplasia | 1 2 | 9 1.3| |__________________________________________________________________________|____________| Parathyroid Gland | + M + + M + + + + + + + + + + | 34 | |__________________________________________________________________________|____________| Pituitary Gland | + + + + + + + + + M M + + + + | 38 | Pars Distalis, Cyst | | 2 | Pars Intermedia, Hyperplasia | | 1 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 8 NTP Experiment-Test: 05135-06 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: SIX MONTH EXPOS. ISOPRENE Date: 10/15/04 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 13:31:26 __________________________________________________________________________________________________________________________________ | 1| 3| 3| 3| 3| 3| 3| 1| 3| 3| 3| 1| 1| 1| 1| | | DAY ON TEST | 8| 7| 7| 7| 7| 7| 7| 8| 7| 7| 7| 8| 8| 8| 8| | | | 3| 3| 3| 1| 3| 3| 1| 2| 3| 3| 3| 5| 5| 5| 5| | | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| | O | B6C3F1 MICE MALE | 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| | A | CONTROL | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| | L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | | _____________________________________________________________________________________________________________________|____________| ENDOCRINE SYSTEM - cont | | | |__________________________________________________________________________|____________| Thyroid Gland | + + + + + + + + + + + + + + + | 40 | Cyst | | 1 | _____________________________________________________________________________________________________________________| | GENERAL BODY SYSTEM | | | None | | | _____________________________________________________________________________________________________________________| | GENITAL SYSTEM | | | |__________________________________________________________________________|____________| Epididymis | + + + + + + + + + + + + + + + | 40 | |__________________________________________________________________________|____________| Penis | | 1 | |__________________________________________________________________________|____________| Preputial Gland | + + + + + + + + + + + + + + + | 40 | Inflammation, Suppurative | 1 | 1 1.0| |__________________________________________________________________________|____________| Prostate | + + + + + + + + M + + + + + + | 38 | |__________________________________________________________________________|____________| Seminal Vesicle | + + + + + + + + + + + + + + + | 40 | |__________________________________________________________________________|____________| Testes | + + + + + + + + + + + + + + + | 40 | _____________________________________________________________________________________________________________________| | HEMATOPOIETIC SYSTEM | | | |__________________________________________________________________________|____________| Bone Marrow | + + + + + + + + + + + + + + + | 40 | Hyperplasia | | 1 3.0| |__________________________________________________________________________|____________| Lymph Node | | 1 | Iliac, Hyperplasia | | 1 2.0| Inguinal, Hyperplasia | | 1 2.0| |__________________________________________________________________________|____________| Lymph Node, Bronchial | M + + M + + M + + + + + + + + | 32 | |__________________________________________________________________________|____________| Lymph Node, Mandibular | + + + M + + + M M + M M M + + | 24 | _____________________________________________________________________________________________________________________|____________| * : 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 9 NTP Experiment-Test: 05135-06 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: SIX MONTH EXPOS. ISOPRENE Date: 10/15/04 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 13:31:26 __________________________________________________________________________________________________________________________________ | 1| 3| 3| 3| 3| 3| 3| 1| 3| 3| 3| 1| 1| 1| 1| | | DAY ON TEST | 8| 7| 7| 7| 7| 7| 7| 8| 7| 7| 7| 8| 8| 8| 8| | | | 3| 3| 3| 1| 3| 3| 1| 2| 3| 3| 3| 5| 5| 5| 5| | | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| | O | B6C3F1 MICE MALE | 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| | A | CONTROL | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| | L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | | _____________________________________________________________________________________________________________________|____________| HEMATOPOIETIC SYSTEM - cont | | | |__________________________________________________________________________|____________| Lymph Node, Mesenteric | + + + + + + + + + + + + + + + | 40 | |__________________________________________________________________________|____________| Lymph Node, Mediastinal | + M M M + M M + + M + + M + M | 19 | |__________________________________________________________________________|____________| Spleen | + + + + + + + + + + + + + + + | 40 | Hematopoietic Cell Proliferation | | 2 2.0| Pigmentation, Melanin | | 1 2.0| |__________________________________________________________________________|____________| Thymus | + + + + + + + + + + + + + + + | 40 | _____________________________________________________________________________________________________________________| | INTEGUMENTARY SYSTEM | | | |__________________________________________________________________________|____________| Mammary Gland | M M M M M M M M M M M M M M M | | |__________________________________________________________________________|____________| Skin | + + + + + + + + + + + + + + + | 40 | Prepuce, Inflammation, Chronic | | 2 4.0| _____________________________________________________________________________________________________________________| | MUSCULOSKELETAL SYSTEM | | | |__________________________________________________________________________|____________| Bone | + + + + + + + + + + + + + + + | 40 | |__________________________________________________________________________|____________| Skeletal Muscle | + + + + + + + + + + + + + + + | 40 | _____________________________________________________________________________________________________________________| | NERVOUS SYSTEM | | | |__________________________________________________________________________|____________| Brain | + + + + + + + + + + + + + + + | 40 | Mineralization | | 1 1.0| |__________________________________________________________________________|____________| Peripheral Nerve | + + + + + + + + + + + + + + + | 40 | |__________________________________________________________________________|____________| Spinal Cord | + + + + + + + + + + + + + + + | 40 | Degeneration | 1 1 | 4 1.0| Meninges, Hemorrhage | 2 | 1 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 10 NTP Experiment-Test: 05135-06 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: SIX MONTH EXPOS. ISOPRENE Date: 10/15/04 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 13:31:26 __________________________________________________________________________________________________________________________________ | 1| 3| 3| 3| 3| 3| 3| 1| 3| 3| 3| 1| 1| 1| 1| | | DAY ON TEST | 8| 7| 7| 7| 7| 7| 7| 8| 7| 7| 7| 8| 8| 8| 8| | | | 3| 3| 3| 1| 3| 3| 1| 2| 3| 3| 3| 5| 5| 5| 5| | | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| | O | B6C3F1 MICE MALE | 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| | A | CONTROL | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| | L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | | _____________________________________________________________________________________________________________________|____________| RESPIRATORY SYSTEM | | | |__________________________________________________________________________|____________| Larynx | + + + + + + + + + + + + + + + | 40 | |__________________________________________________________________________|____________| Lung | + + + + + + + + + + + + + + + | 40 | Congestion | 1 | 3 1.7| Hemorrhage | 2 1 2 | 3 1.7| Metaplasia, Osseous | | 1 1.0| Alveolar Epithelium, Hyperplasia | 4 | 1 4.0| |__________________________________________________________________________|____________| Nose | + + + + + + + + + + + + + + + | 40 | Turbinate, Olfactory Epithelium, | | | Degeneration | | 1 1.0| |__________________________________________________________________________|____________| Trachea | + + + + + + + + + + + + + + + | 40 | _____________________________________________________________________________________________________________________| | SPECIAL SENSES SYSTEM | | | |__________________________________________________________________________|____________| Eye | + + + + + + + + + + + + + + + | 40 | |__________________________________________________________________________|____________| Harderian Gland | + + + + + + + + + + + + + + + | 40 | Hyperplasia | | 1 2.0| |__________________________________________________________________________|____________| Zymbal's Gland | + + + + + + + + + + + + + + + | 40 | _____________________________________________________________________________________________________________________| | URINARY SYSTEM | | | |__________________________________________________________________________|____________| Kidney | + + + + + + + + + + + + + + + | 40 | Bilateral, Fibrosis | 2 | 2 1.5| Bilateral, Hydronephrosis | 2 2 | 2 2.0| Bilateral, Metaplasia, Osseous | 1 | 1 1.0| Bilateral, Pelvis, Inflammation, | | | Suppurative | 2 | 1 2.0| Bilateral, Renal Tubule, 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 11 NTP Experiment-Test: 05135-06 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: SIX MONTH EXPOS. ISOPRENE Date: 10/15/04 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 13:31:26 __________________________________________________________________________________________________________________________________ | 1| 3| 3| 3| 3| 3| 3| 1| 3| 3| 3| 1| 1| 1| 1| | | DAY ON TEST | 8| 7| 7| 7| 7| 7| 7| 8| 7| 7| 7| 8| 8| 8| 8| | | | 3| 3| 3| 1| 3| 3| 1| 2| 3| 3| 3| 5| 5| 5| 5| | | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| | O | B6C3F1 MICE MALE | 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| | A | CONTROL | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| | L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | | _____________________________________________________________________________________________________________________|____________| URINARY SYSTEM - cont | | | Urinary Bladder | + + + + + + + + + + + + + + + | 40 | Calculus Micro Observation Only | X | 1 | Dilatation | | 1 2.0| Inflammation, Suppurative | 2 | 2 1.5| 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 12 NTP Experiment-Test: 05135-06 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: SIX MONTH EXPOS. ISOPRENE Date: 10/15/04 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 13:31:26 _____________________________________________________________________________________________________________________ | 3| 0| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| DAY ON TEST | 7| 1| 5| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| | 3| 6| 9| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 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| B6C3F1 MICE 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| 70 PPM | 4| 4| 4| 4| 4| 4| 4| 4| 4| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 6| 6| 6| 6| 6| 6| | 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 | + + | |__________________________________________________________________________| Gallbladder | + A | |__________________________________________________________________________| Intestine Large, Colon | + + | |__________________________________________________________________________| Intestine Large, Rectum | + + | |__________________________________________________________________________| Intestine Large, Cecum | + + | |__________________________________________________________________________| Intestine Small, Duodenum | + + | |__________________________________________________________________________| Intestine Small, Jejunum | + A | |__________________________________________________________________________| Intestine Small, Ileum | + A | |__________________________________________________________________________| Liver | + + + + + + + + + + + + + + + + + + + + + + + + +| Basophilic Focus | X | Infarct | 4 | Vacuolization Cytoplasmic | 1 1 1 1 1 1 1 2 2 1 1 1 1 1 1 1 1 1| |__________________________________________________________________________| Mesentery | + + | Necrosis | 2 2 | |__________________________________________________________________________| Pancreas | + + + + + + + + + + + + + + + + + + + + + + + + +| Focal Cellular Change | | Inflammation, Chronic | 1 1 | Duct, Cyst | X | |__________________________________________________________________________| Pharynx | + + | |__________________________________________________________________________| Salivary Glands | + + | |__________________________________________________________________________| Stomach, Forestomach | + + + + + + + + + + + + + + + + + + + + + + + + +| Epithelium, Hyperplasia | 2 | |__________________________________________________________________________| Stomach, Glandular | + + + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________|__________________________________________________________________________| Page 13 NTP Experiment-Test: 05135-06 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: SIX MONTH EXPOS. ISOPRENE Date: 10/15/04 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 13:31:26 _____________________________________________________________________________________________________________________ | 3| 0| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| DAY ON TEST | 7| 1| 5| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| | 3| 6| 9| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 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| B6C3F1 MICE 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| 70 PPM | 4| 4| 4| 4| 4| 4| 4| 4| 4| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 6| 6| 6| 6| 6| 6| | 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 | | Hyperplasia | 2 | Inflammation, Suppurative | | Pigmentation, Hemosiderin | 1 | |__________________________________________________________________________| Tongue | + + | _____________________________________________________________________________________________________________________| CARDIOVASCULAR SYSTEM | | |__________________________________________________________________________| Blood Vessel | + + | |__________________________________________________________________________| Heart | + + | _____________________________________________________________________________________________________________________| ENDOCRINE SYSTEM | | |__________________________________________________________________________| Adrenal Cortex | + + | |__________________________________________________________________________| Adrenal Medulla | + + | |__________________________________________________________________________| Islets, Pancreatic | + + + + + + + + + + + + + + + + + + + + + + + + +| Hyperplasia | 3 1 1 1 1 1 1 1 | |__________________________________________________________________________| Parathyroid Gland | + + | |__________________________________________________________________________| Pituitary Gland | + + | |__________________________________________________________________________| Thyroid Gland | + + | _____________________________________________________________________________________________________________________| GENERAL BODY SYSTEM | | None | | _____________________________________________________________________________________________________________________| GENITAL SYSTEM | | |__________________________________________________________________________| Epididymis | + + | Inflammation | 2 | |__________________________________________________________________________| Preputial Gland | + + | Hemorrhage | 3 | Inflammation, Suppurative | 2 1 | __________________________________________|__________________________________________________________________________| Page 14 NTP Experiment-Test: 05135-06 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: SIX MONTH EXPOS. ISOPRENE Date: 10/15/04 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 13:31:26 _____________________________________________________________________________________________________________________ | 3| 0| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| DAY ON TEST | 7| 1| 5| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| | 3| 6| 9| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 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| B6C3F1 MICE 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| 70 PPM | 4| 4| 4| 4| 4| 4| 4| 4| 4| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 6| 6| 6| 6| 6| 6| | 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 | | Necrosis | 2 | |__________________________________________________________________________| Prostate | + + | |__________________________________________________________________________| Seminal Vesicle | + + | |__________________________________________________________________________| Testes | + + + + + + + + + + + + + + + + + + + + + + + + +| _____________________________________________________________________________________________________________________| HEMATOPOIETIC SYSTEM | | |__________________________________________________________________________| Bone Marrow | + + | |__________________________________________________________________________| Lymph Node | + | Iliac, Hyperplasia | 2 | |__________________________________________________________________________| Lymph Node, Bronchial | + M | |__________________________________________________________________________| Lymph Node, Mandibular | M + | |__________________________________________________________________________| Lymph Node, Mesenteric | + + + | Hyperplasia | 2 | Necrosis | 2 | |__________________________________________________________________________| Lymph Node, Mediastinal | + + | |__________________________________________________________________________| Spleen | + + + + + | Accessory Spleen | X | Hematopoietic Cell Proliferation | 2 | Necrosis | 2 | Pigmentation, Melanin | 2 2 | |__________________________________________________________________________| Thymus | + + | Necrosis | 3 3 | _____________________________________________________________________________________________________________________| INTEGUMENTARY SYSTEM | | |__________________________________________________________________________| Mammary Gland | M M | |__________________________________________________________________________| __________________________________________|__________________________________________________________________________| Page 15 NTP Experiment-Test: 05135-06 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: SIX MONTH EXPOS. ISOPRENE Date: 10/15/04 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 13:31:26 _____________________________________________________________________________________________________________________ | 3| 0| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| DAY ON TEST | 7| 1| 5| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| | 3| 6| 9| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 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| B6C3F1 MICE 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| 70 PPM | 4| 4| 4| 4| 4| 4| 4| 4| 4| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 6| 6| 6| 6| 6| 6| | 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 | + + + + | Hemorrhage | 2 | Inflammation, Suppurative | 2 1 | Prepuce, Inflammation, Chronic | 4 | _____________________________________________________________________________________________________________________| MUSCULOSKELETAL SYSTEM | | |__________________________________________________________________________| Bone | + + | |__________________________________________________________________________| Skeletal Muscle | + + + + + + + + + + + + + + + + + + + + + + + + +| _____________________________________________________________________________________________________________________| NERVOUS SYSTEM | | |__________________________________________________________________________| Brain | + + | |__________________________________________________________________________| Peripheral Nerve | + + + + + + + + + + + + + + + + + + + + + + + + +| |__________________________________________________________________________| Spinal Cord | + + + + + + + + + + + + + + + + + + + + + + + + +| Degeneration | 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1| _____________________________________________________________________________________________________________________| RESPIRATORY SYSTEM | | |__________________________________________________________________________| Larynx | + + | |__________________________________________________________________________| Lung | + + + + + + + + + + + + + + + + + + + + + + + + +| Hemorrhage | 1 | Alveolar Epithelium, Hyperplasia | 4 | |__________________________________________________________________________| Nose | + + + + + + + + + + + + + + + + + + + + + + + + +| Turbinate, Olfactory Epithelium, | | Degeneration | 2 1 | |__________________________________________________________________________| Trachea | + + | _____________________________________________________________________________________________________________________| SPECIAL SENSES SYSTEM | | |__________________________________________________________________________| Eye | + + | |__________________________________________________________________________| __________________________________________|__________________________________________________________________________| Page 16 NTP Experiment-Test: 05135-06 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: SIX MONTH EXPOS. ISOPRENE Date: 10/15/04 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 13:31:26 _____________________________________________________________________________________________________________________ | 3| 0| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| DAY ON TEST | 7| 1| 5| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| | 3| 6| 9| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 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| B6C3F1 MICE 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| 70 PPM | 4| 4| 4| 4| 4| 4| 4| 4| 4| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 6| 6| 6| 6| 6| 6| | 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 | | Harderian Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| |__________________________________________________________________________| Zymbal's Gland | + + | _____________________________________________________________________________________________________________________| URINARY SYSTEM | | |__________________________________________________________________________| Kidney | + + + | Bilateral, Hydronephrosis | 1 | Bilateral, Pelvis, Inflammation, | | Suppurative | 1 | |__________________________________________________________________________| Urinary Bladder | + + + + | Calculus Micro Observation Only | X | Dilatation | 3 2 | __________________________________________|__________________________________________________________________________ Page 17 NTP Experiment-Test: 05135-06 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: SIX MONTH EXPOS. ISOPRENE Date: 10/15/04 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 13:31:26 __________________________________________________________________________________________________________________________________ | 3| 3| 3| 3| 3| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| | | DAY ON TEST | 7| 7| 7| 7| 7| 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| | | | 3| 3| 3| 3| 3| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| | | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| | O | B6C3F1 MICE MALE | 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| | A | 70 PPM | 6| 6| 6| 6| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 8| | L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | | _____________________________________________________________________________________________________________________|____________| ALIMENTARY SYSTEM | | | |__________________________________________________________________________|____________| Esophagus | + + + + + + + + + + | 12 | |__________________________________________________________________________|____________| Gallbladder | + M + + + + + + + + | 10 | |__________________________________________________________________________|____________| Intestine Large, Colon | + + + + + + + + + + | 12 | |__________________________________________________________________________|____________| Intestine Large, Rectum | + + + + + + + + + + | 12 | |__________________________________________________________________________|____________| Intestine Large, Cecum | + + + + + + + + + + | 12 | |__________________________________________________________________________|____________| Intestine Small, Duodenum | + + + + + + + + + + | 12 | |__________________________________________________________________________|____________| Intestine Small, Jejunum | + + + + + + + + + + | 11 | |__________________________________________________________________________|____________| Intestine Small, Ileum | + + + + + + + + + + | 11 | |__________________________________________________________________________|____________| Liver | + + + + + + + + + + + + + + + | 40 | Basophilic Focus | | 1 | Infarct | | 1 4.0| Vacuolization Cytoplasmic | 2 1 1 1 1 2 1 | 25 1.2| |__________________________________________________________________________|____________| Mesentery | | 2 | Necrosis | | 2 2.0| |__________________________________________________________________________|____________| Pancreas | + + + + + + + + + + + + + + + | 40 | Focal Cellular Change | 2 | 1 2.0| Inflammation, Chronic | | 2 1.0| Duct, Cyst | | 1 | |__________________________________________________________________________|____________| Pharynx | + + + + + + + + + + | 12 | |__________________________________________________________________________|____________| Salivary Glands | + + + + + + + + + + | 12 | |__________________________________________________________________________|____________| _____________________________________________________________________________________________________________________|____________| * : 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 18 NTP Experiment-Test: 05135-06 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: SIX MONTH EXPOS. ISOPRENE Date: 10/15/04 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 13:31:26 __________________________________________________________________________________________________________________________________ | 3| 3| 3| 3| 3| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| | | DAY ON TEST | 7| 7| 7| 7| 7| 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| | | | 3| 3| 3| 3| 3| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| | | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| | O | B6C3F1 MICE MALE | 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| | A | 70 PPM | 6| 6| 6| 6| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 8| | L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | | _____________________________________________________________________________________________________________________|____________| ALIMENTARY SYSTEM - cont | | | Stomach, Forestomach | + + + + + + + + + + + + + + + | 40 | Epithelium, Hyperplasia | 2 | 2 2.0| |__________________________________________________________________________|____________| Stomach, Glandular | + + + + + + + + + + + + + + + | 40 | Hyperplasia | | 1 2.0| Inflammation, Suppurative | 2 | 1 2.0| Pigmentation, Hemosiderin | | 1 1.0| |__________________________________________________________________________|____________| Tongue | + + + + + + + + + + | 12 | _____________________________________________________________________________________________________________________| | CARDIOVASCULAR SYSTEM | | | |__________________________________________________________________________|____________| Blood Vessel | + + + + + + + + + + | 12 | |__________________________________________________________________________|____________| Heart | + + + + + + + + + + | 12 | _____________________________________________________________________________________________________________________| | ENDOCRINE SYSTEM | | | |__________________________________________________________________________|____________| Adrenal Cortex | + + + + + + + + + + | 12 | |__________________________________________________________________________|____________| Adrenal Medulla | + + + + + + + + + + | 12 | |__________________________________________________________________________|____________| Islets, Pancreatic | + + + + + + + + + + + + + + + | 40 | Hyperplasia | 1 | 9 1.2| |__________________________________________________________________________|____________| Parathyroid Gland | + M + + + + + + + + | 11 | |__________________________________________________________________________|____________| Pituitary Gland | + + + + + + + + + + | 12 | |__________________________________________________________________________|____________| Thyroid Gland | + + + + + + + + + + | 12 | _____________________________________________________________________________________________________________________| | GENERAL BODY SYSTEM | | | None | | | _____________________________________________________________________________________________________________________| | * : 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: 05135-06 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: SIX MONTH EXPOS. ISOPRENE Date: 10/15/04 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 13:31:26 __________________________________________________________________________________________________________________________________ | 3| 3| 3| 3| 3| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| | | DAY ON TEST | 7| 7| 7| 7| 7| 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| | | | 3| 3| 3| 3| 3| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| | | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| | O | B6C3F1 MICE MALE | 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| | A | 70 PPM | 6| 6| 6| 6| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 8| | L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | | _____________________________________________________________________________________________________________________|____________| GENITAL SYSTEM | | | |__________________________________________________________________________|____________| Epididymis | + + + + + + + + + + | 12 | Inflammation | | 1 2.0| |__________________________________________________________________________|____________| Preputial Gland | + + + + + + + + + + + | 13 | Hemorrhage | | 1 3.0| Inflammation, Suppurative | 4 | 3 2.3| Necrosis | | 1 2.0| |__________________________________________________________________________|____________| Prostate | + + + + + + + + + + | 12 | |__________________________________________________________________________|____________| Seminal Vesicle | + + + + + + + + + + | 12 | |__________________________________________________________________________|____________| Testes | + + + + + + + + + + + + + + + | 40 | _____________________________________________________________________________________________________________________| | HEMATOPOIETIC SYSTEM | | | |__________________________________________________________________________|____________| Bone Marrow | + + + + + + + + + + | 12 | |__________________________________________________________________________|____________| Lymph Node | | 1 | Iliac, Hyperplasia | | 1 2.0| |__________________________________________________________________________|____________| Lymph Node, Bronchial | + + + + + + + + + + | 11 | |__________________________________________________________________________|____________| Lymph Node, Mandibular | + + + M M + + + M M | 7 | |__________________________________________________________________________|____________| Lymph Node, Mesenteric | + + + + + + + + + + | 13 | Hyperplasia | | 1 2.0| Necrosis | | 1 2.0| |__________________________________________________________________________|____________| Lymph Node, Mediastinal | + M + + + + + + M + | 10 | |__________________________________________________________________________|____________| Spleen | + + + + + + + + + + | 15 | Accessory Spleen | | 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 20 NTP Experiment-Test: 05135-06 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: SIX MONTH EXPOS. ISOPRENE Date: 10/15/04 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 13:31:26 __________________________________________________________________________________________________________________________________ | 3| 3| 3| 3| 3| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| | | DAY ON TEST | 7| 7| 7| 7| 7| 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| | | | 3| 3| 3| 3| 3| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| | | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| | O | B6C3F1 MICE MALE | 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| | A | 70 PPM | 6| 6| 6| 6| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 8| | L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | | _____________________________________________________________________________________________________________________|____________| HEMATOPOIETIC SYSTEM - cont | | | Hematopoietic Cell Proliferation | | 1 2.0| Necrosis | | 1 2.0| Pigmentation, Melanin | 1 | 3 1.7| |__________________________________________________________________________|____________| Thymus | + + + + + + + + + + | 12 | Necrosis | | 2 3.0| _____________________________________________________________________________________________________________________| | INTEGUMENTARY SYSTEM | | | |__________________________________________________________________________|____________| Mammary Gland | M M M M M M M M M M | | |__________________________________________________________________________|____________| Skin | + + + + + + + + + + | 14 | Hemorrhage | | 1 2.0| Inflammation, Suppurative | | 2 1.5| Prepuce, Inflammation, Chronic | | 1 4.0| _____________________________________________________________________________________________________________________| | MUSCULOSKELETAL SYSTEM | | | |__________________________________________________________________________|____________| Bone | + + + + + + + + + + | 12 | |__________________________________________________________________________|____________| Skeletal Muscle | + + + + + + + + + + + + + + + | 40 | _____________________________________________________________________________________________________________________| | NERVOUS SYSTEM | | | |__________________________________________________________________________|____________| Brain | + + + + + + + + + + | 12 | |__________________________________________________________________________|____________| Peripheral Nerve | + + + + + + + + + + + + + + + | 40 | |__________________________________________________________________________|____________| Spinal Cord | + + + + + + + + + + + + + + + | 40 | Degeneration | 1 1 1 1 | 20 1.0| _____________________________________________________________________________________________________________________| | RESPIRATORY SYSTEM | | | |__________________________________________________________________________|____________| Larynx | + + + + + + + + + + | 12 | _____________________________________________________________________________________________________________________|____________| * : 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: 05135-06 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: SIX MONTH EXPOS. ISOPRENE Date: 10/15/04 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 13:31:26 __________________________________________________________________________________________________________________________________ | 3| 3| 3| 3| 3| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| | | DAY ON TEST | 7| 7| 7| 7| 7| 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| | | | 3| 3| 3| 3| 3| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| | | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| | O | B6C3F1 MICE MALE | 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| | A | 70 PPM | 6| 6| 6| 6| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 8| | L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | | _____________________________________________________________________________________________________________________|____________| RESPIRATORY SYSTEM - cont | | | |__________________________________________________________________________|____________| Lung | + + + + + + + + + + + + + + + | 40 | Hemorrhage | 1 | 2 1.0| Alveolar Epithelium, Hyperplasia | | 1 4.0| |__________________________________________________________________________|____________| Nose | + + + + + + + + + + + + + + + | 40 | Turbinate, Olfactory Epithelium, | | | Degeneration | | 2 1.5| |__________________________________________________________________________|____________| Trachea | + + + + + + + + + + | 12 | _____________________________________________________________________________________________________________________| | SPECIAL SENSES SYSTEM | | | |__________________________________________________________________________|____________| Eye | + + + + + + + + + + | 12 | |__________________________________________________________________________|____________| Harderian Gland | + + + + + + + + + + + + + + + | 40 | |__________________________________________________________________________|____________| Zymbal's Gland | + + + + + + + + + + | 12 | _____________________________________________________________________________________________________________________| | URINARY SYSTEM | | | |__________________________________________________________________________|____________| Kidney | + + + + + + + + + + | 13 | Bilateral, Hydronephrosis | | 1 1.0| Bilateral, Pelvis, Inflammation, | | | Suppurative | | 1 1.0| |__________________________________________________________________________|____________| Urinary Bladder | + + + + + + + + + + + | 15 | Calculus Micro Observation Only | | 1 | Dilatation | | 2 2.5| __________________________________________________________________________________________________________________________________ * : 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 22 NTP Experiment-Test: 05135-06 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: SIX MONTH EXPOS. ISOPRENE Date: 10/15/04 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 13:31:26 _____________________________________________________________________________________________________________________ | 3| 3| 3| 3| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| DAY ON TEST | 7| 7| 7| 7| 6| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| | 2| 2| 2| 2| 0| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| __________________________________________|__________________________________________________________________________| | 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| B6C3F1 MICE 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| 1| 1| 1| 1| 1| 1| 220 PPM | 8| 8| 8| 8| 8| 8| 8| 8| 8| 9| 9| 9| 9| 9| 9| 9| 9| 9| 9| 0| 0| 0| 0| 0| 0| | 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 | A | |__________________________________________________________________________| Gallbladder | A | |__________________________________________________________________________| Intestine Large, Colon | A | |__________________________________________________________________________| Intestine Large, Rectum | A | |__________________________________________________________________________| Intestine Large, Cecum | A | |__________________________________________________________________________| Intestine Small, Duodenum | A | |__________________________________________________________________________| Intestine Small, Jejunum | A | |__________________________________________________________________________| Intestine Small, Ileum | A | |__________________________________________________________________________| Liver | + + + + A + + + + + + + + + + + + + + + + + + + +| Basophilic Focus | X | Mixed Cell Focus | X | Necrosis | 1| Vacuolization Cytoplasmic | 1 1 2 1 1 1 1 1 1 1 1 1 1 2 1 2 2 1 1 1 1| |__________________________________________________________________________| Pancreas | + + + + A + + + + + + + + + + + + + + + + + + + +| |__________________________________________________________________________| Pharynx | + | |__________________________________________________________________________| Salivary Glands | A | |__________________________________________________________________________| Stomach, Forestomach | + + + + A + + + + + + + + + + + + + + + + + + + +| Infiltration Cellular, Mast Cell | 2 | |__________________________________________________________________________| Stomach, Glandular | + + + + A + + + + + + + + + + + + + + + + + + + +| |__________________________________________________________________________| Tongue | + | |__________________________________________________________________________| Tooth | + | Deformity | | __________________________________________|__________________________________________________________________________| Page 23 NTP Experiment-Test: 05135-06 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: SIX MONTH EXPOS. ISOPRENE Date: 10/15/04 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 13:31:26 _____________________________________________________________________________________________________________________ | 3| 3| 3| 3| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| DAY ON TEST | 7| 7| 7| 7| 6| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| | 2| 2| 2| 2| 0| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| __________________________________________|__________________________________________________________________________| | 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| B6C3F1 MICE 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| 1| 1| 1| 1| 1| 1| 220 PPM | 8| 8| 8| 8| 8| 8| 8| 8| 8| 9| 9| 9| 9| 9| 9| 9| 9| 9| 9| 0| 0| 0| 0| 0| 0| | 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 | | |__________________________________________________________________________| Blood Vessel | A | |__________________________________________________________________________| Heart | A | _____________________________________________________________________________________________________________________| ENDOCRINE SYSTEM | | |__________________________________________________________________________| Adrenal Cortex | A | |__________________________________________________________________________| Adrenal Medulla | A | |__________________________________________________________________________| Islets, Pancreatic | + + + + A + + + + + + + + + + + + + + + + + + + +| Hyperplasia | 3 1 1 1 2 2 2 2 1 | |__________________________________________________________________________| Parathyroid Gland | A | |__________________________________________________________________________| Pituitary Gland | A | Pars Distalis, Cyst | | |__________________________________________________________________________| Thyroid Gland | A | _____________________________________________________________________________________________________________________| GENERAL BODY SYSTEM | | None | | _____________________________________________________________________________________________________________________| GENITAL SYSTEM | | |__________________________________________________________________________| Epididymis | A | |__________________________________________________________________________| Preputial Gland | A | |__________________________________________________________________________| Prostate | A | |__________________________________________________________________________| Seminal Vesicle | A | |__________________________________________________________________________| Testes | + + + + A + + + + + + + + + + + + + + + + + + + +| Atrophy | | _____________________________________________________________________________________________________________________| HEMATOPOIETIC SYSTEM | | __________________________________________|__________________________________________________________________________| Page 24 NTP Experiment-Test: 05135-06 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: SIX MONTH EXPOS. ISOPRENE Date: 10/15/04 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 13:31:26 _____________________________________________________________________________________________________________________ | 3| 3| 3| 3| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| DAY ON TEST | 7| 7| 7| 7| 6| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| | 2| 2| 2| 2| 0| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| __________________________________________|__________________________________________________________________________| | 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| B6C3F1 MICE 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| 1| 1| 1| 1| 1| 1| 220 PPM | 8| 8| 8| 8| 8| 8| 8| 8| 8| 9| 9| 9| 9| 9| 9| 9| 9| 9| 9| 0| 0| 0| 0| 0| 0| | 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 | | |__________________________________________________________________________| Bone Marrow | A | |__________________________________________________________________________| Lymph Node, Bronchial | A | |__________________________________________________________________________| Lymph Node, Mandibular | A | |__________________________________________________________________________| Lymph Node, Mesenteric | A | |__________________________________________________________________________| Lymph Node, Mediastinal | A | |__________________________________________________________________________| Spleen | A | |__________________________________________________________________________| Thymus | A | _____________________________________________________________________________________________________________________| INTEGUMENTARY SYSTEM | | |__________________________________________________________________________| Mammary Gland | A | |__________________________________________________________________________| Skin | A | _____________________________________________________________________________________________________________________| MUSCULOSKELETAL SYSTEM | | |__________________________________________________________________________| Bone | A + | Osteopetrosis | 1 | |__________________________________________________________________________| Skeletal Muscle | + + + + A + + + + + + + + + + + + + + + + + + + +| Inflammation | | _____________________________________________________________________________________________________________________| NERVOUS SYSTEM | | |__________________________________________________________________________| Brain | A | Cyst Epithelial Inclusion | | |__________________________________________________________________________| Peripheral Nerve | + + + + A + + + + + + + + + + + + + + + + + + + +| |__________________________________________________________________________| Spinal Cord | + + + + A + + + + + + + + + + + + + + + + + + + +| Degeneration | 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 | __________________________________________|__________________________________________________________________________| Page 25 NTP Experiment-Test: 05135-06 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: SIX MONTH EXPOS. ISOPRENE Date: 10/15/04 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 13:31:26 _____________________________________________________________________________________________________________________ | 3| 3| 3| 3| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| DAY ON TEST | 7| 7| 7| 7| 6| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| | 2| 2| 2| 2| 0| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| __________________________________________|__________________________________________________________________________| | 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| B6C3F1 MICE 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| 1| 1| 1| 1| 1| 1| 220 PPM | 8| 8| 8| 8| 8| 8| 8| 8| 8| 9| 9| 9| 9| 9| 9| 9| 9| 9| 9| 0| 0| 0| 0| 0| 0| | 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| __________________________________________|__________________________________________________________________________| NERVOUS SYSTEM - cont | | Meninges, Cyst Epithelial Inclusion | X | _____________________________________________________________________________________________________________________| RESPIRATORY SYSTEM | | |__________________________________________________________________________| Larynx | A | |__________________________________________________________________________| Lung | + + + + A + + + + + + + + + + + + + + + + + + + +| Hemorrhage | 2 2 | |__________________________________________________________________________| Nose | + + + + A + + + + + + + + + + + + + + + + + + + +| Turbinate, Inflammation | 1 | Turbinate, Olfactory Epithelium, | | Degeneration | 1 1 1 1 | |__________________________________________________________________________| Trachea | A | _____________________________________________________________________________________________________________________| SPECIAL SENSES SYSTEM | | |__________________________________________________________________________| Eye | + | |__________________________________________________________________________| Harderian Gland | + + + + A + + + + + + + + + + + + + + + + + + + +| Hyperplasia | | |__________________________________________________________________________| Zymbal's Gland | + | _____________________________________________________________________________________________________________________| URINARY SYSTEM | | |__________________________________________________________________________| Kidney | A | |__________________________________________________________________________| Urinary Bladder | A | __________________________________________|__________________________________________________________________________ Page 26 NTP Experiment-Test: 05135-06 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: SIX MONTH EXPOS. ISOPRENE Date: 10/15/04 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 13:31:26 __________________________________________________________________________________________________________________________________ | 3| 3| 3| 3| 3| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| | | DAY ON TEST | 0| 7| 7| 7| 7| 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| | | | 9| 2| 2| 2| 2| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| | | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| | O | B6C3F1 MICE MALE | 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| | A | 220 PPM | 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| | L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | | _____________________________________________________________________________________________________________________|____________| ALIMENTARY SYSTEM | | | |__________________________________________________________________________|____________| Esophagus | + + + + + + + + + + + | 11 | |__________________________________________________________________________|____________| Gallbladder | + + + + + + + + M + + | 10 | |__________________________________________________________________________|____________| Intestine Large, Colon | + + + + + + + + + + + | 11 | |__________________________________________________________________________|____________| Intestine Large, Rectum | + + + + + + + + + + + | 11 | |__________________________________________________________________________|____________| Intestine Large, Cecum | + + + + + + + + + + + | 11 | |__________________________________________________________________________|____________| Intestine Small, Duodenum | + + + M + + + + + + + | 10 | |__________________________________________________________________________|____________| Intestine Small, Jejunum | + + + + + + + + + + + | 11 | |__________________________________________________________________________|____________| Intestine Small, Ileum | + + + + + + + + + + + | 11 | |__________________________________________________________________________|____________| Liver | + + + + + + + + + + + + + + + | 39 | Basophilic Focus | 3 | 2 3.0| Mixed Cell Focus | | 1 | Necrosis | | 1 1.0| Vacuolization Cytoplasmic | 1 1 1 1 1 1 | 27 1.1| |__________________________________________________________________________|____________| Pancreas | + + + + + + + + + + + + + + + | 39 | |__________________________________________________________________________|____________| Pharynx | + + + + + + + + + + + | 12 | |__________________________________________________________________________|____________| Salivary Glands | + + + + + + + + + + + | 11 | |__________________________________________________________________________|____________| Stomach, Forestomach | + + + + + + + + + + + + + + + | 39 | Infiltration Cellular, Mast Cell | | 1 2.0| |__________________________________________________________________________|____________| Stomach, Glandular | + + + + + + + + + + + + + + + | 39 | |__________________________________________________________________________|____________| _____________________________________________________________________________________________________________________|____________| * : 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: 05135-06 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: SIX MONTH EXPOS. ISOPRENE Date: 10/15/04 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 13:31:26 __________________________________________________________________________________________________________________________________ | 3| 3| 3| 3| 3| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| | | DAY ON TEST | 0| 7| 7| 7| 7| 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| | | | 9| 2| 2| 2| 2| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| | | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| | O | B6C3F1 MICE MALE | 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| | A | 220 PPM | 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| | L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | | _____________________________________________________________________________________________________________________|____________| ALIMENTARY SYSTEM - cont | | | Tongue | + + + + + + + + + + + | 12 | |__________________________________________________________________________|____________| Tooth | + | 2 | Deformity | X | 1 | _____________________________________________________________________________________________________________________| | CARDIOVASCULAR SYSTEM | | | |__________________________________________________________________________|____________| Blood Vessel | M + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Heart | + + + + + + + + + + + | 11 | _____________________________________________________________________________________________________________________| | ENDOCRINE SYSTEM | | | |__________________________________________________________________________|____________| Adrenal Cortex | + + + + + + + + + + + | 11 | |__________________________________________________________________________|____________| Adrenal Medulla | + + + + + + + + + + + | 11 | |__________________________________________________________________________|____________| Islets, Pancreatic | + + + + + + + + + + + + + + + | 39 | Hyperplasia | 2 1 1 | 12 1.6| |__________________________________________________________________________|____________| Parathyroid Gland | M + + + + + + M + M + | 8 | |__________________________________________________________________________|____________| Pituitary Gland | + M + + + + + + + + + | 10 | Pars Distalis, Cyst | X | 1 | |__________________________________________________________________________|____________| Thyroid Gland | + + + + + + + + + + + | 11 | _____________________________________________________________________________________________________________________| | GENERAL BODY SYSTEM | | | None | | | _____________________________________________________________________________________________________________________| | GENITAL SYSTEM | | | |__________________________________________________________________________|____________| Epididymis | + + + + + + + + + + + | 11 | |__________________________________________________________________________|____________| _____________________________________________________________________________________________________________________|____________| * : 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: 05135-06 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: SIX MONTH EXPOS. ISOPRENE Date: 10/15/04 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 13:31:26 __________________________________________________________________________________________________________________________________ | 3| 3| 3| 3| 3| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| | | DAY ON TEST | 0| 7| 7| 7| 7| 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| | | | 9| 2| 2| 2| 2| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| | | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| | O | B6C3F1 MICE MALE | 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| | A | 220 PPM | 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| | L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | | _____________________________________________________________________________________________________________________|____________| GENITAL SYSTEM - cont | | | Preputial Gland | + + + + + + + + + + + | 11 | |__________________________________________________________________________|____________| Prostate | + + + + + + + + + + + | 11 | |__________________________________________________________________________|____________| Seminal Vesicle | + + + + + + + + + + + | 11 | |__________________________________________________________________________|____________| Testes | + + + + + + + + + + + + + + + | 39 | Atrophy | 1 | 1 1.0| _____________________________________________________________________________________________________________________| | HEMATOPOIETIC SYSTEM | | | |__________________________________________________________________________|____________| Bone Marrow | + + + + + + + + + + + | 11 | |__________________________________________________________________________|____________| Lymph Node, Bronchial | + + + + + + + + M + + | 10 | |__________________________________________________________________________|____________| Lymph Node, Mandibular | M + + + + + + + + + + | 10 | |__________________________________________________________________________|____________| Lymph Node, Mesenteric | + + + + + + + + M M + | 9 | |__________________________________________________________________________|____________| Lymph Node, Mediastinal | + M + M + + + M M + + | 7 | |__________________________________________________________________________|____________| Spleen | + + + + + + + + + + + | 11 | |__________________________________________________________________________|____________| Thymus | + + + + + + + + + + + | 11 | _____________________________________________________________________________________________________________________| | INTEGUMENTARY SYSTEM | | | |__________________________________________________________________________|____________| Mammary Gland | M M M M M M M M M M M | | |__________________________________________________________________________|____________| Skin | + + + + + + + + + + + | 11 | _____________________________________________________________________________________________________________________| | MUSCULOSKELETAL SYSTEM | | | |__________________________________________________________________________|____________| Bone | + + + + + + + + + + + | 12 | _____________________________________________________________________________________________________________________|____________| * : 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: 05135-06 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: SIX MONTH EXPOS. ISOPRENE Date: 10/15/04 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 13:31:26 __________________________________________________________________________________________________________________________________ | 3| 3| 3| 3| 3| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| | | DAY ON TEST | 0| 7| 7| 7| 7| 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| | | | 9| 2| 2| 2| 2| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| | | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| | O | B6C3F1 MICE MALE | 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| | A | 220 PPM | 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| | L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | | _____________________________________________________________________________________________________________________|____________| MUSCULOSKELETAL SYSTEM - cont | | | Osteopetrosis | | 1 1.0| |__________________________________________________________________________|____________| Skeletal Muscle | + + + + + + + + + + + + + + + | 39 | Inflammation | 2 | 1 2.0| _____________________________________________________________________________________________________________________| | NERVOUS SYSTEM | | | |__________________________________________________________________________|____________| Brain | + + + + + + + + + + + | 11 | Cyst Epithelial Inclusion | X | 1 | |__________________________________________________________________________|____________| Peripheral Nerve | + + + + + + + + + + + + + + + | 39 | |__________________________________________________________________________|____________| Spinal Cord | + + + + + + + + + + + + + + + | 39 | Degeneration | 1 1 1 | 19 1.0| Meninges, Cyst Epithelial Inclusion | | 1 | _____________________________________________________________________________________________________________________| | RESPIRATORY SYSTEM | | | |__________________________________________________________________________|____________| Larynx | + + + + + + + + + + + | 11 | |__________________________________________________________________________|____________| Lung | + + + + + + + + + + + + + + + | 39 | Hemorrhage | | 2 2.0| |__________________________________________________________________________|____________| Nose | + + + + + + + + + + + + + + + | 39 | Turbinate, Inflammation | | 1 1.0| Turbinate, Olfactory Epithelium, | | | Degeneration | 1 | 5 1.0| |__________________________________________________________________________|____________| Trachea | + + + + + + + + + + + | 11 | _____________________________________________________________________________________________________________________| | SPECIAL SENSES SYSTEM | | | |__________________________________________________________________________|____________| Eye | + + + + + + + + + + + | 12 | |__________________________________________________________________________|____________| _____________________________________________________________________________________________________________________|____________| * : 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 30 NTP Experiment-Test: 05135-06 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: SIX MONTH EXPOS. ISOPRENE Date: 10/15/04 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 13:31:26 __________________________________________________________________________________________________________________________________ | 3| 3| 3| 3| 3| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| | | DAY ON TEST | 0| 7| 7| 7| 7| 8| 8| 8| 8| 8| 8| 8| 8| 8| 8| | | | 9| 2| 2| 2| 2| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| | | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| | O | B6C3F1 MICE MALE | 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| | A | 220 PPM | 0| 0| 0| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 2| | L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | | _____________________________________________________________________________________________________________________|____________| SPECIAL SENSES SYSTEM - cont | | | Harderian Gland | + + + + + + + + + + + + + + + | 39 | Hyperplasia | 3 1 1 | 3 1.7| |__________________________________________________________________________|____________| Zymbal's Gland | + + + + + + + + + + + | 12 | _____________________________________________________________________________________________________________________| | URINARY SYSTEM | | | |__________________________________________________________________________|____________| Kidney | + + + + + + + + + + + | 11 | |__________________________________________________________________________|____________| Urinary Bladder | + + + + + + + + + + + | 11 | __________________________________________________________________________________________________________________________________ * : 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 31 NTP Experiment-Test: 05135-06 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: SIX MONTH EXPOS. ISOPRENE Date: 10/15/04 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 13:31:26 _____________________________________________________________________________________________________________________ | 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| DAY ON TEST | 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 6| 7| 7| 7| 7| 7| 7| 7| 7| 7| 2| 7| | 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 7| 2| 2| 2| 2| 2| 2| 2| 2| 2| 4| 2| __________________________________________|__________________________________________________________________________| | 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| B6C3F1 MICE 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 | 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| 700 PPM | 2| 2| 2| 2| 2| 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| | 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 | + + | |__________________________________________________________________________| Gallbladder | + A | Inflammation, Suppurative | | |__________________________________________________________________________| Intestine Large, Colon | + + | |__________________________________________________________________________| Intestine Large, Rectum | + + | |__________________________________________________________________________| Intestine Large, Cecum | + + + | Parasite | X | |__________________________________________________________________________| Intestine Small, Duodenum | A + | |__________________________________________________________________________| Intestine Small, Jejunum | + + | |__________________________________________________________________________| Intestine Small, Ileum | + + | |__________________________________________________________________________| Liver | + + + + + + + + + + + + + + + + + + + + + + + + +| Angiectasis | 1 3 | Basophilic Focus | X | Clear Cell Focus | 1 2 | Eosinophilic Focus | 3 2 2 2 1 | Mixed Cell Focus | 1 | Necrosis | 2 | Vacuolization Cytoplasmic | 1 1 1 1 1 2 1 1 1 1 1 1 1 | |__________________________________________________________________________| Mesentery | + + | Angiectasis | 1 | Necrosis | 2 3 | |__________________________________________________________________________| Pancreas | + + + + + + + + + + + + + + + + + + + + + + + + +| Focal Cellular Change | 1 1 1 1 | |__________________________________________________________________________| Pharynx | + + | |__________________________________________________________________________| Salivary Glands | + + | __________________________________________|__________________________________________________________________________| Page 32 NTP Experiment-Test: 05135-06 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: SIX MONTH EXPOS. ISOPRENE Date: 10/15/04 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 13:31:26 _____________________________________________________________________________________________________________________ | 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| DAY ON TEST | 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 6| 7| 7| 7| 7| 7| 7| 7| 7| 7| 2| 7| | 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 7| 2| 2| 2| 2| 2| 2| 2| 2| 2| 4| 2| __________________________________________|__________________________________________________________________________| | 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| B6C3F1 MICE 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 | 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| 700 PPM | 2| 2| 2| 2| 2| 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| | 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 | | |__________________________________________________________________________| Stomach, Forestomach | + + + + + + + + + + + + + + + + + + + + + + + + +| Epithelium, Hyperplasia | 1 1 2 2 1 | |__________________________________________________________________________| Stomach, Glandular | + + + + + + + + + + + + + + + + + + + + + + + + +| Hyperplasia | 1 1 X | Inflammation, Suppurative | 1 | Pigmentation, Hemosiderin | 2 | Ulcer | 2 | |__________________________________________________________________________| Tongue | + + | _____________________________________________________________________________________________________________________| CARDIOVASCULAR SYSTEM | | |__________________________________________________________________________| Blood Vessel | + + | |__________________________________________________________________________| Heart | + + | _____________________________________________________________________________________________________________________| ENDOCRINE SYSTEM | | |__________________________________________________________________________| Adrenal Cortex | + + | |__________________________________________________________________________| Adrenal Medulla | + + | |__________________________________________________________________________| Islets, Pancreatic | + + + + + + + + + + + + + + + + + + + + + + + + +| Hyperplasia | 1 1 1 1 2 1 3 2 1 1 1 | |__________________________________________________________________________| Parathyroid Gland | + + | |__________________________________________________________________________| Pituitary Gland | + + | |__________________________________________________________________________| Thyroid Gland | + + | _____________________________________________________________________________________________________________________| GENERAL BODY SYSTEM | | None | | _____________________________________________________________________________________________________________________| GENITAL SYSTEM | | |__________________________________________________________________________| __________________________________________|__________________________________________________________________________| Page 33 NTP Experiment-Test: 05135-06 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: SIX MONTH EXPOS. ISOPRENE Date: 10/15/04 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 13:31:26 _____________________________________________________________________________________________________________________ | 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| DAY ON TEST | 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 6| 7| 7| 7| 7| 7| 7| 7| 7| 7| 2| 7| | 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 7| 2| 2| 2| 2| 2| 2| 2| 2| 2| 4| 2| __________________________________________|__________________________________________________________________________| | 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| B6C3F1 MICE 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 | 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| 700 PPM | 2| 2| 2| 2| 2| 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| | 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 | | Epididymis | + + | |__________________________________________________________________________| Preputial Gland | + + + + + | Angiectasis | 3 | Inflammation, Chronic | 3 | |__________________________________________________________________________| Prostate | + + | Inflammation, Suppurative | 2 3 | |__________________________________________________________________________| Seminal Vesicle | + + | Inflammation, Suppurative | 3 | |__________________________________________________________________________| Testes | + + + + + + + + + + + + + + + + + + + + + + + + +| _____________________________________________________________________________________________________________________| HEMATOPOIETIC SYSTEM | | |__________________________________________________________________________| Bone Marrow | + + | Hyperplasia | 2 | |__________________________________________________________________________| Lymph Node, Bronchial | + M | |__________________________________________________________________________| Lymph Node, Mandibular | + + | |__________________________________________________________________________| Lymph Node, Mesenteric | + M + | Hyperplasia | 3 | |__________________________________________________________________________| Lymph Node, Mediastinal | + + | |__________________________________________________________________________| Spleen | + + | Infiltration Cellular, Histiocyte | 2 | Pigmentation, Melanin | | |__________________________________________________________________________| Thymus | + + | Atrophy | 3 | _____________________________________________________________________________________________________________________| INTEGUMENTARY SYSTEM | | |__________________________________________________________________________| Mammary Gland | M M | __________________________________________|__________________________________________________________________________| Page 34 NTP Experiment-Test: 05135-06 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: SIX MONTH EXPOS. ISOPRENE Date: 10/15/04 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 13:31:26 _____________________________________________________________________________________________________________________ | 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| DAY ON TEST | 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 6| 7| 7| 7| 7| 7| 7| 7| 7| 7| 2| 7| | 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 7| 2| 2| 2| 2| 2| 2| 2| 2| 2| 4| 2| __________________________________________|__________________________________________________________________________| | 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| B6C3F1 MICE 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 | 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| 700 PPM | 2| 2| 2| 2| 2| 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| | 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 | + + | Prepuce, Inflammation, Chronic | 3 | _____________________________________________________________________________________________________________________| MUSCULOSKELETAL SYSTEM | | |__________________________________________________________________________| Bone | + + | |__________________________________________________________________________| Skeletal Muscle | + + + + + + + + + + + + + + + + + + + + + + + + +| _____________________________________________________________________________________________________________________| NERVOUS SYSTEM | | |__________________________________________________________________________| Brain | + + | Hemorrhage | 2 | Necrosis | | |__________________________________________________________________________| Peripheral Nerve | + + + + + + + + + M + + + + + + + + + + + + + + +| Sciatic, Degeneration | 1 | |__________________________________________________________________________| Spinal Cord | + + + + + + + + + + + + + + + + + + + + + + + + +| Degeneration | 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1| _____________________________________________________________________________________________________________________| RESPIRATORY SYSTEM | | |__________________________________________________________________________| Larynx | + + | |__________________________________________________________________________| Lung | + + + + + + + + + + + + + + + + + + + + + + + + +| Hemorrhage | 3 | Thrombosis | | Alveolar Epithelium, Hyperplasia | 2 2 4 | |__________________________________________________________________________| Nose | + + + + + + + + + + + + + + + + + + + + + + + + +| Turbinate, Inflammation | 1 | Turbinate, Olfactory Epithelium, | | Degeneration | 1 1 1 1 1 1 1 1 1 1 | |__________________________________________________________________________| Trachea | + + | __________________________________________|__________________________________________________________________________| Page 35 NTP Experiment-Test: 05135-06 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: SIX MONTH EXPOS. ISOPRENE Date: 10/15/04 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 13:31:26 _____________________________________________________________________________________________________________________ | 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| DAY ON TEST | 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 6| 7| 7| 7| 7| 7| 7| 7| 7| 7| 2| 7| | 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 2| 7| 2| 2| 2| 2| 2| 2| 2| 2| 2| 4| 2| __________________________________________|__________________________________________________________________________| | 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| B6C3F1 MICE 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 | 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| 700 PPM | 2| 2| 2| 2| 2| 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| 4| 4| 4| 4| 4| | 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 | | |__________________________________________________________________________| Eye | + + | |__________________________________________________________________________| Harderian Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| Hyperplasia | 2 1 | |__________________________________________________________________________| Zymbal's Gland | + + | _____________________________________________________________________________________________________________________| URINARY SYSTEM | | |__________________________________________________________________________| Kidney | + + + | Bilateral, Hydronephrosis | 4 | Bilateral, Cortex, Pelvis, | | Inflammation, Suppurative | 3 | Bilateral, Pelvis, Inflammation, | | Suppurative | 2 | |__________________________________________________________________________| Urinary Bladder | + + | Dilatation | 2 | Transitional Epithelium, Hyperplasia | 1 | __________________________________________|__________________________________________________________________________ Page 36 NTP Experiment-Test: 05135-06 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: SIX MONTH EXPOS. ISOPRENE Date: 10/15/04 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 13:31:26 __________________________________________________________________________________________________________________________________ | 3| 3| 3| 3| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| | | DAY ON TEST | 7| 7| 7| 7| 8| 8| 8| 8| 8| 8| 8| 8| 7| 8| 8| | | | 2| 2| 2| 2| 5| 5| 5| 5| 5| 5| 5| 5| 6| 5| 5| | | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| | O | B6C3F1 MICE MALE | 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| | A | 700 PPM | 4| 4| 4| 4| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 6| | L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | | _____________________________________________________________________________________________________________________|____________| ALIMENTARY SYSTEM | | | |__________________________________________________________________________|____________| Esophagus | + + + + + + + + + + + | 13 | |__________________________________________________________________________|____________| Gallbladder | + + + + + + + + + + + | 12 | Inflammation, Suppurative | 1 | 1 1.0| |__________________________________________________________________________|____________| Intestine Large, Colon | + + + + + + + + + + + | 13 | |__________________________________________________________________________|____________| Intestine Large, Rectum | + + + + + + + + + + + | 13 | |__________________________________________________________________________|____________| Intestine Large, Cecum | + + + + + + + + + + + | 14 | Parasite | | 1 | |__________________________________________________________________________|____________| Intestine Small, Duodenum | + + + + + + + + + + + | 12 | |__________________________________________________________________________|____________| Intestine Small, Jejunum | + + + + + + + + + + + | 13 | |__________________________________________________________________________|____________| Intestine Small, Ileum | + + + + + + + + + + + | 13 | |__________________________________________________________________________|____________| Liver | + + + + + + + + + + + + + + + | 40 | Angiectasis | | 2 2.0| Basophilic Focus | 2 4 X | 4 3.0| Clear Cell Focus | | 2 1.5| Eosinophilic Focus | 3 | 6 2.2| Mixed Cell Focus | | 1 1.0| Necrosis | | 1 2.0| Vacuolization Cytoplasmic | 1 1 1 2 1 1 2 | 20 1.2| |__________________________________________________________________________|____________| Mesentery | | 2 | Angiectasis | | 1 1.0| Necrosis | | 2 2.5| |__________________________________________________________________________|____________| Pancreas | + + + + + + + + + + + + + + + | 40 | Focal Cellular Change | 1 | 5 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: 05135-06 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: SIX MONTH EXPOS. ISOPRENE Date: 10/15/04 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 13:31:26 __________________________________________________________________________________________________________________________________ | 3| 3| 3| 3| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| | | DAY ON TEST | 7| 7| 7| 7| 8| 8| 8| 8| 8| 8| 8| 8| 7| 8| 8| | | | 2| 2| 2| 2| 5| 5| 5| 5| 5| 5| 5| 5| 6| 5| 5| | | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| | O | B6C3F1 MICE MALE | 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| | A | 700 PPM | 4| 4| 4| 4| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 6| | L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | | _____________________________________________________________________________________________________________________|____________| ALIMENTARY SYSTEM - cont | | | |__________________________________________________________________________|____________| Pharynx | + + + + + + + + + + + | 13 | |__________________________________________________________________________|____________| Salivary Glands | + + + + + + + + + + + | 13 | |__________________________________________________________________________|____________| Stomach, Forestomach | + + + + + + + + + + + + + + + | 40 | Epithelium, Hyperplasia | 2 1 3 3 2 4 4 2 2 4 1 | 16 2.2| |__________________________________________________________________________|____________| Stomach, Glandular | + + + + + + + + + + + + + + + | 40 | Hyperplasia | | 3 1.0| Inflammation, Suppurative | | 1 1.0| Pigmentation, Hemosiderin | | 1 2.0| Ulcer | | 1 2.0| |__________________________________________________________________________|____________| Tongue | + + + + + + + + + + + | 13 | _____________________________________________________________________________________________________________________| | CARDIOVASCULAR SYSTEM | | | |__________________________________________________________________________|____________| Blood Vessel | + + + + + + + + + + + | 13 | |__________________________________________________________________________|____________| Heart | + + + + + + + + + + + | 13 | _____________________________________________________________________________________________________________________| | ENDOCRINE SYSTEM | | | |__________________________________________________________________________|____________| Adrenal Cortex | + + + + + + + + + + + | 13 | |__________________________________________________________________________|____________| Adrenal Medulla | + + + + + + + + + + + | 13 | |__________________________________________________________________________|____________| Islets, Pancreatic | + + + + + + + + + + + + + + + | 40 | Hyperplasia | 1 | 12 1.3| |__________________________________________________________________________|____________| Parathyroid Gland | M M + + + + + + + + + | 11 | |__________________________________________________________________________|____________| Pituitary Gland | + + + + + + + + + + + | 13 | _____________________________________________________________________________________________________________________|____________| * : 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 38 NTP Experiment-Test: 05135-06 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: SIX MONTH EXPOS. ISOPRENE Date: 10/15/04 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 13:31:26 __________________________________________________________________________________________________________________________________ | 3| 3| 3| 3| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| | | DAY ON TEST | 7| 7| 7| 7| 8| 8| 8| 8| 8| 8| 8| 8| 7| 8| 8| | | | 2| 2| 2| 2| 5| 5| 5| 5| 5| 5| 5| 5| 6| 5| 5| | | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| | O | B6C3F1 MICE MALE | 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| | A | 700 PPM | 4| 4| 4| 4| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 6| | L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | | _____________________________________________________________________________________________________________________|____________| ENDOCRINE SYSTEM - cont | | | |__________________________________________________________________________|____________| Thyroid Gland | + + + + + + + + + + + | 13 | _____________________________________________________________________________________________________________________| | GENERAL BODY SYSTEM | | | None | | | _____________________________________________________________________________________________________________________| | GENITAL SYSTEM | | | |__________________________________________________________________________|____________| Epididymis | + + + + + + + + + + + | 13 | |__________________________________________________________________________|____________| Preputial Gland | + + + + + + + + + + + | 16 | Angiectasis | | 1 3.0| Inflammation, Chronic | | 1 3.0| |__________________________________________________________________________|____________| Prostate | + + + + + + + + + + + | 13 | Inflammation, Suppurative | | 2 2.5| |__________________________________________________________________________|____________| Seminal Vesicle | + + + + + + + + + + + | 13 | Inflammation, Suppurative | | 1 3.0| |__________________________________________________________________________|____________| Testes | + + + + + + + + + + + + + + + | 40 | _____________________________________________________________________________________________________________________| | HEMATOPOIETIC SYSTEM | | | |__________________________________________________________________________|____________| Bone Marrow | + + + + + + + + + + + | 13 | Hyperplasia | | 1 2.0| |__________________________________________________________________________|____________| Lymph Node, Bronchial | + + + + + + + + + M + | 11 | |__________________________________________________________________________|____________| Lymph Node, Mandibular | + + + + + + M + M + + | 11 | |__________________________________________________________________________|____________| Lymph Node, Mesenteric | + + + + + + + + + + + | 13 | Hyperplasia | | 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 39 NTP Experiment-Test: 05135-06 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: SIX MONTH EXPOS. ISOPRENE Date: 10/15/04 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 13:31:26 __________________________________________________________________________________________________________________________________ | 3| 3| 3| 3| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| | | DAY ON TEST | 7| 7| 7| 7| 8| 8| 8| 8| 8| 8| 8| 8| 7| 8| 8| | | | 2| 2| 2| 2| 5| 5| 5| 5| 5| 5| 5| 5| 6| 5| 5| | | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| | O | B6C3F1 MICE MALE | 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| | A | 700 PPM | 4| 4| 4| 4| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 6| | L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | | _____________________________________________________________________________________________________________________|____________| HEMATOPOIETIC SYSTEM - cont | | | Lymph Node, Mediastinal | M + M + + M + + + M + | 9 | |__________________________________________________________________________|____________| Spleen | + + + + + + + + + + + | 13 | Infiltration Cellular, Histiocyte | | 1 2.0| Pigmentation, Melanin | 2 | 1 2.0| |__________________________________________________________________________|____________| Thymus | + + + + + + + + + + + | 13 | Atrophy | | 1 3.0| _____________________________________________________________________________________________________________________| | INTEGUMENTARY SYSTEM | | | |__________________________________________________________________________|____________| Mammary Gland | M M M M M M M M M M M | | |__________________________________________________________________________|____________| Skin | + + + + + + + + + + + + | 14 | Prepuce, Inflammation, Chronic | | 1 3.0| _____________________________________________________________________________________________________________________| | MUSCULOSKELETAL SYSTEM | | | |__________________________________________________________________________|____________| Bone | + + + + + + + + + + + | 13 | |__________________________________________________________________________|____________| Skeletal Muscle | + + + + + + + + + + + + + + + | 40 | _____________________________________________________________________________________________________________________| | NERVOUS SYSTEM | | | |__________________________________________________________________________|____________| Brain | + + + + + + + + + + + | 13 | Hemorrhage | 1 | 2 1.5| Necrosis | 2 | 1 2.0| |__________________________________________________________________________|____________| Peripheral Nerve | + + + + + + + + + + + + + + + | 39 | Sciatic, Degeneration | | 1 1.0| |__________________________________________________________________________|____________| Spinal Cord | + + + + + + + + + + + + + + + | 40 | Degeneration | 1 1 1 1 | 28 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 40 NTP Experiment-Test: 05135-06 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: SIX MONTH EXPOS. ISOPRENE Date: 10/15/04 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 13:31:26 __________________________________________________________________________________________________________________________________ | 3| 3| 3| 3| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| | | DAY ON TEST | 7| 7| 7| 7| 8| 8| 8| 8| 8| 8| 8| 8| 7| 8| 8| | | | 2| 2| 2| 2| 5| 5| 5| 5| 5| 5| 5| 5| 6| 5| 5| | | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| | O | B6C3F1 MICE MALE | 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| | A | 700 PPM | 4| 4| 4| 4| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 6| | L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | | _____________________________________________________________________________________________________________________|____________| RESPIRATORY SYSTEM | | | |__________________________________________________________________________|____________| Larynx | + + + + + + + + + + + | 13 | |__________________________________________________________________________|____________| Lung | + + + + + + + + + + + + + + + | 40 | Hemorrhage | | 1 3.0| Thrombosis | 2 | 1 2.0| Alveolar Epithelium, Hyperplasia | | 3 2.7| |__________________________________________________________________________|____________| Nose | + + + + + + + + + + + + + + + | 40 | Turbinate, Inflammation | | 1 1.0| Turbinate, Olfactory Epithelium, | | | Degeneration | 1 1 | 12 1.0| |__________________________________________________________________________|____________| Trachea | + + + + + + + + + + + | 13 | _____________________________________________________________________________________________________________________| | SPECIAL SENSES SYSTEM | | | |__________________________________________________________________________|____________| Eye | + + + + + + + + + + + | 13 | |__________________________________________________________________________|____________| Harderian Gland | + + + + + + + + + + + + + + + | 40 | Hyperplasia | | 2 1.5| |__________________________________________________________________________|____________| Zymbal's Gland | + + + + + + + + + + + | 13 | _____________________________________________________________________________________________________________________| | URINARY SYSTEM | | | |__________________________________________________________________________|____________| Kidney | + + + + + + + + + + + | 14 | Bilateral, Hydronephrosis | | 1 4.0| Bilateral, Cortex, Pelvis, | | | Inflammation, Suppurative | | 1 3.0| Bilateral, Pelvis, Inflammation, | | | Suppurative | | 1 2.0| |__________________________________________________________________________|____________| Urinary Bladder | + + + + + + + + + + + | 13 | _____________________________________________________________________________________________________________________|____________| * : 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 41 NTP Experiment-Test: 05135-06 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: SIX MONTH EXPOS. ISOPRENE Date: 10/15/04 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 13:31:26 __________________________________________________________________________________________________________________________________ | 3| 3| 3| 3| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| | | DAY ON TEST | 7| 7| 7| 7| 8| 8| 8| 8| 8| 8| 8| 8| 7| 8| 8| | | | 2| 2| 2| 2| 5| 5| 5| 5| 5| 5| 5| 5| 6| 5| 5| | | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| | O | B6C3F1 MICE MALE | 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| | A | 700 PPM | 4| 4| 4| 4| 5| 5| 5| 5| 5| 5| 5| 5| 5| 5| 6| | L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | | _____________________________________________________________________________________________________________________|____________| URINARY SYSTEM - cont | | | Dilatation | | 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 42 NTP Experiment-Test: 05135-06 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: SIX MONTH EXPOS. ISOPRENE Date: 10/15/04 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 13:31:26 _____________________________________________________________________________________________________________________ | 3| 3| 1| 1| 1| 1| 3| 3| 3| 3| 1| 3| 3| 3| 3| 3| 3| 1| 3| 3| 1| 2| 1| 1| 3| DAY ON TEST | 7| 7| 6| 8| 3| 8| 7| 7| 7| 7| 8| 7| 7| 7| 7| 7| 7| 8| 2| 7| 8| 8| 8| 8| 7| | 1| 1| 0| 5| 6| 5| 1| 1| 1| 1| 5| 1| 1| 1| 1| 1| 1| 5| 6| 1| 5| 9| 5| 5| 1| __________________________________________|__________________________________________________________________________| | 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| B6C3F1 MICE 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 | 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| 2200 PPM | 6| 6| 6| 6| 6| 6| 6| 6| 6| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 8| 8| 8| 8| 8| 8| | 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 | + + + + + + + + + + + + + + + + + + + M + + + + +| |__________________________________________________________________________| Gallbladder | + + A + + + + + + + + + + + + + + + A + + A + + +| Inflammation, Suppurative | | |__________________________________________________________________________| Intestine Large, Colon | + + + + + + + + + + + + + + + + + + + + + M + + +| |__________________________________________________________________________| Intestine Large, Rectum | + + A + + + + + + + + + + + + + + + + + + A + + +| |__________________________________________________________________________| Intestine Large, Cecum | + + A + + + + + + + + + + + + + + + A + + A + + +| |__________________________________________________________________________| Intestine Small, Duodenum | + + A + + + + + + + + + + + + + + + A + + A + + +| Serosa, Inflammation, Chronic | | |__________________________________________________________________________| Intestine Small, Jejunum | + + + + + + + + + + + + + + + + + + A + + A + + +| |__________________________________________________________________________| Intestine Small, Ileum | + + A + + + + + + + + + + + + + + + A + + A + + +| |__________________________________________________________________________| Liver | + + + + + + + + + + + + + + + + + + + + + + + + +| Angiectasis | | Basophilic Focus | 2 2 2 X | Eosinophilic Focus | 3 4 2 | Hematopoietic Cell Proliferation | 2 | Hyperplasia, Focal | 4 | Inflammation, Chronic | 2 | Mixed Cell Focus | 2 | Vacuolization Cytoplasmic | 1 1 1 1 1 2 1 1 1 1 1 1 1 1 | |__________________________________________________________________________| Mesentery | + + + | Necrosis | 2 | |__________________________________________________________________________| Pancreas | + + + + + + + + + + + + + + + + + + + + + + + + +| Focal Cellular Change | 1 | Inflammation, Chronic | 1 | |__________________________________________________________________________| Pharynx | + + + + + + + + + + + + + + + + + + + + + + + + +| |__________________________________________________________________________| __________________________________________|__________________________________________________________________________| Page 43 NTP Experiment-Test: 05135-06 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: SIX MONTH EXPOS. ISOPRENE Date: 10/15/04 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 13:31:26 _____________________________________________________________________________________________________________________ | 3| 3| 1| 1| 1| 1| 3| 3| 3| 3| 1| 3| 3| 3| 3| 3| 3| 1| 3| 3| 1| 2| 1| 1| 3| DAY ON TEST | 7| 7| 6| 8| 3| 8| 7| 7| 7| 7| 8| 7| 7| 7| 7| 7| 7| 8| 2| 7| 8| 8| 8| 8| 7| | 1| 1| 0| 5| 6| 5| 1| 1| 1| 1| 5| 1| 1| 1| 1| 1| 1| 5| 6| 1| 5| 9| 5| 5| 1| __________________________________________|__________________________________________________________________________| | 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| B6C3F1 MICE 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 | 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| 2200 PPM | 6| 6| 6| 6| 6| 6| 6| 6| 6| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 8| 8| 8| 8| 8| 8| | 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 | | Salivary Glands | + + + + + + + + + + + + + + + + + + + + + + + + +| |__________________________________________________________________________| Stomach, Forestomach | + + + + + + + + + + + + + + + + + + + + + + + + +| Angiectasis | 2 | Epithelium, Hyperplasia | 3 4 4 4 3 1 2 2 1 2 4 3 4 3| |__________________________________________________________________________| Stomach, Glandular | + + + + + + + + + + M + + + + + + + + + + A + + +| Hyperplasia | 1 2 | |__________________________________________________________________________| Tongue | + + + + + + + + + + + + + + + + + + + + + + + + +| _____________________________________________________________________________________________________________________| CARDIOVASCULAR SYSTEM | | |__________________________________________________________________________| Blood Vessel | + + M + + + + + + + + + + + + + + + + + + + + M +| |__________________________________________________________________________| Heart | + + + + + + + + + + + + + + + + + + + + + + + + +| _____________________________________________________________________________________________________________________| ENDOCRINE SYSTEM | | |__________________________________________________________________________| Adrenal Cortex | + + + M + + + + + + + + + + + + + + + + + + + + +| Hematopoietic Cell Proliferation | 2 | Hyperplasia | 1 1 1 1 | Hypertrophy, Focal | 1 2 | |__________________________________________________________________________| Adrenal Medulla | + + + M + + + + + + + + + + + + + + + + + + + + +| |__________________________________________________________________________| Islets, Pancreatic | + + + + + + + + + + + + + + + + + + + + + + + + +| Hyperplasia | 1 2 1 1 1 1 1 1 1 | |__________________________________________________________________________| Parathyroid Gland | + + M M M + + + + + + + + + + + + + + M + + + + +| |__________________________________________________________________________| Pituitary Gland | + + + + + + + + + M M + + + + + + + + + + + + + +| |__________________________________________________________________________| Thyroid Gland | + + + + + + + + + + + + + + + + + + + M + + + + +| Cyst | | Follicular Cell, Hyperplasia | | _____________________________________________________________________________________________________________________| GENERAL BODY SYSTEM | | None | | __________________________________________|__________________________________________________________________________| Page 44 NTP Experiment-Test: 05135-06 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: SIX MONTH EXPOS. ISOPRENE Date: 10/15/04 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 13:31:26 _____________________________________________________________________________________________________________________ | 3| 3| 1| 1| 1| 1| 3| 3| 3| 3| 1| 3| 3| 3| 3| 3| 3| 1| 3| 3| 1| 2| 1| 1| 3| DAY ON TEST | 7| 7| 6| 8| 3| 8| 7| 7| 7| 7| 8| 7| 7| 7| 7| 7| 7| 8| 2| 7| 8| 8| 8| 8| 7| | 1| 1| 0| 5| 6| 5| 1| 1| 1| 1| 5| 1| 1| 1| 1| 1| 1| 5| 6| 1| 5| 9| 5| 5| 1| __________________________________________|__________________________________________________________________________| | 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| B6C3F1 MICE 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 | 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| 2200 PPM | 6| 6| 6| 6| 6| 6| 6| 6| 6| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 8| 8| 8| 8| 8| 8| | 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 | | |__________________________________________________________________________| Epididymis | + + + + + + + + + + + + + + + + + + + + + + + + +| |__________________________________________________________________________| Preputial Gland | + + + + + + + + + + + + + + + + + + + + + A + + +| Atrophy | 4 | Inflammation, Suppurative | 1 | |__________________________________________________________________________| Prostate | + + + + + + + + + + + + + + + + + + + + + + + + +| Hyperplasia | 1 | |__________________________________________________________________________| Seminal Vesicle | + + + + + + + + + + + + + + + + + + + + + + + + +| |__________________________________________________________________________| Testes | + + + + + + + + + + + + + + + + + + + + + + + + +| _____________________________________________________________________________________________________________________| HEMATOPOIETIC SYSTEM | | |__________________________________________________________________________| Bone Marrow | + + + + + + + + + + + + + + + + + + + + + + + + +| Angiectasis | 4| Hyperplasia | 3 | |__________________________________________________________________________| Lymph Node, Bronchial | + + + + + + + + + + M + + + + + M + + + + + M + +| |__________________________________________________________________________| Lymph Node, Mandibular | + + + + + + + + + + M + + + M + + + M M + M + + +| |__________________________________________________________________________| Lymph Node, Mesenteric | + + + + + + + + + + + + + M + + + + + + + + + + +| Hyperplasia | | |__________________________________________________________________________| Lymph Node, Mediastinal | M M + M M + + M M M + M + + + M + + + M M + + M M| Hyperplasia | | |__________________________________________________________________________| Spleen | + + + + + + + + + + + + + + + + + + + + + + + + +| Hematopoietic Cell Proliferation | 3 | Pigmentation, Melanin | 1 | |__________________________________________________________________________| Thymus | + + + M + + + + + + + + + + + + + + + + + + + + +| Atrophy | 3 | _____________________________________________________________________________________________________________________| INTEGUMENTARY SYSTEM | | __________________________________________|__________________________________________________________________________| Page 45 NTP Experiment-Test: 05135-06 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: SIX MONTH EXPOS. ISOPRENE Date: 10/15/04 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 13:31:26 _____________________________________________________________________________________________________________________ | 3| 3| 1| 1| 1| 1| 3| 3| 3| 3| 1| 3| 3| 3| 3| 3| 3| 1| 3| 3| 1| 2| 1| 1| 3| DAY ON TEST | 7| 7| 6| 8| 3| 8| 7| 7| 7| 7| 8| 7| 7| 7| 7| 7| 7| 8| 2| 7| 8| 8| 8| 8| 7| | 1| 1| 0| 5| 6| 5| 1| 1| 1| 1| 5| 1| 1| 1| 1| 1| 1| 5| 6| 1| 5| 9| 5| 5| 1| __________________________________________|__________________________________________________________________________| | 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| B6C3F1 MICE 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 | 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| 2200 PPM | 6| 6| 6| 6| 6| 6| 6| 6| 6| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 8| 8| 8| 8| 8| 8| | 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 | | |__________________________________________________________________________| Mammary Gland | M M M M M M M M M M M M M M M M M M M M M M M M M| |__________________________________________________________________________| Skin | + + + + + + + + + + + + + + + + + + + + + + + + +| Cyst Epithelial Inclusion | X | Hemorrhage | 3 | Prepuce, Inflammation, Chronic | 4 | _____________________________________________________________________________________________________________________| MUSCULOSKELETAL SYSTEM | | |__________________________________________________________________________| Bone | + + + + + + + + + + + + + + + + + + + + + + + + +| |__________________________________________________________________________| Skeletal Muscle | + + + + + + + + + + + + + + + + + + + + + + + + +| Inflammation | | _____________________________________________________________________________________________________________________| NERVOUS SYSTEM | | |__________________________________________________________________________| Brain | + + + + + + + + + + + + + + + + + + + + + + + + +| Mineralization | 1 | |__________________________________________________________________________| Peripheral Nerve | + + + + + + + + + + + + + + + + + + M + + A + + +| Sciatic, Degeneration | 2 | |__________________________________________________________________________| Spinal Cord | + + + + + + + + + + + + + + + + + + + + + A + + +| Degeneration | 1 1 1 1 1 1| _____________________________________________________________________________________________________________________| RESPIRATORY SYSTEM | | |__________________________________________________________________________| Larynx | + + A + + + + + + + + + + + + + + + + M + + + + +| |__________________________________________________________________________| Lung | + + + + + + + + + + + + + + + + + + + + + + + + +| Hemorrhage | 2 | Alveolar Epithelium, Hyperplasia | 2 1 2 2 | |__________________________________________________________________________| Nose | + + + + + + + + + + + + + + + + + + + + + + + + +| Turbinate, Olfactory Epithelium, | | Degeneration | 1 1 1 2 1 1 2 1 1 1 1 2 1 1 2 1| Turbinate, Olfactory Epithelium, | | __________________________________________|__________________________________________________________________________| Page 46 NTP Experiment-Test: 05135-06 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: SIX MONTH EXPOS. ISOPRENE Date: 10/15/04 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 13:31:26 _____________________________________________________________________________________________________________________ | 3| 3| 1| 1| 1| 1| 3| 3| 3| 3| 1| 3| 3| 3| 3| 3| 3| 1| 3| 3| 1| 2| 1| 1| 3| DAY ON TEST | 7| 7| 6| 8| 3| 8| 7| 7| 7| 7| 8| 7| 7| 7| 7| 7| 7| 8| 2| 7| 8| 8| 8| 8| 7| | 1| 1| 0| 5| 6| 5| 1| 1| 1| 1| 5| 1| 1| 1| 1| 1| 1| 5| 6| 1| 5| 9| 5| 5| 1| __________________________________________|__________________________________________________________________________| | 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| B6C3F1 MICE 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 | 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| 2200 PPM | 6| 6| 6| 6| 6| 6| 6| 6| 6| 7| 7| 7| 7| 7| 7| 7| 7| 7| 7| 8| 8| 8| 8| 8| 8| | 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 | | Inflammation, Chronic | 1 | |__________________________________________________________________________| Trachea | + + + + + + + + + + + + + + + + + + + + + + + + +| _____________________________________________________________________________________________________________________| SPECIAL SENSES SYSTEM | | |__________________________________________________________________________| Eye | + + + + + + + + + + + + + + + + + + + + + + + + +| |__________________________________________________________________________| Harderian Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| Hyperplasia | 1 1 | |__________________________________________________________________________| Zymbal's Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| _____________________________________________________________________________________________________________________| URINARY SYSTEM | | |__________________________________________________________________________| Kidney | + + + + + + + + + + + + + + + + + + + + + + + + +| Bilateral, Hydronephrosis | 2 | Bilateral, Metaplasia, Osseous | | Bilateral, Renal Tubule, Hyperplasia | 1 1 | |__________________________________________________________________________| Urinary Bladder | + + + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________|__________________________________________________________________________ Page 47 NTP Experiment-Test: 05135-06 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: SIX MONTH EXPOS. ISOPRENE Date: 10/15/04 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 13:31:26 __________________________________________________________________________________________________________________________________ | 1| 3| 3| 3| 3| 3| 3| 3| 3| 1| 3| 3| 3| 3| 1| | | DAY ON TEST | 8| 7| 7| 7| 7| 7| 7| 7| 7| 8| 7| 7| 7| 7| 8| | | | 5| 1| 1| 1| 1| 1| 1| 1| 1| 5| 1| 1| 1| 1| 5| | | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| | O | B6C3F1 MICE MALE | 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| 2| | A | 2200 PPM | 8| 8| 8| 8| 9| 9| 9| 9| 9| 9| 9| 9| 9| 9| 0| | L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | | _____________________________________________________________________________________________________________________|____________| ALIMENTARY SYSTEM | | | |__________________________________________________________________________|____________| Esophagus | + + + + + + + + + + + + + + + | 39 | |__________________________________________________________________________|____________| Gallbladder | + + + + + + + + + + + + + + + | 37 | Inflammation, Suppurative | 1 | 1 1.0| |__________________________________________________________________________|____________| Intestine Large, Colon | + + + + + + + + + + + + + + + | 39 | |__________________________________________________________________________|____________| Intestine Large, Rectum | + + + + + + + + + + + + + + + | 38 | |__________________________________________________________________________|____________| Intestine Large, Cecum | + + + + + + + + + + + + + + + | 37 | |__________________________________________________________________________|____________| Intestine Small, Duodenum | + + + + + + + + + + + + + + + | 37 | Serosa, Inflammation, Chronic | 2 | 1 2.0| |__________________________________________________________________________|____________| Intestine Small, Jejunum | + + + + + + + + + + + + + + + | 38 | |__________________________________________________________________________|____________| Intestine Small, Ileum | + + + + + + + + + + + + + + + | 37 | |__________________________________________________________________________|____________| Liver | + + + + + + + + + + + + + + + | 40 | Angiectasis | 1 | 1 1.0| Basophilic Focus | 4 | 5 2.5| Eosinophilic Focus | 4 4 | 5 3.4| Hematopoietic Cell Proliferation | 2 | 2 2.0| Hyperplasia, Focal | | 1 4.0| Inflammation, Chronic | | 1 2.0| Mixed Cell Focus | 1 | 2 1.5| Vacuolization Cytoplasmic | 1 1 2 1 1 2 1 1 1 1 | 24 1.1| |__________________________________________________________________________|____________| Mesentery | + | 4 | Necrosis | 2 | 2 2.0| |__________________________________________________________________________|____________| Pancreas | + + + + + + + + + + + + + + + | 40 | Focal Cellular Change | 1 1 | 3 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 48 NTP Experiment-Test: 05135-06 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: SIX MONTH EXPOS. ISOPRENE Date: 10/15/04 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 13:31:26 __________________________________________________________________________________________________________________________________ | 1| 3| 3| 3| 3| 3| 3| 3| 3| 1| 3| 3| 3| 3| 1| | | DAY ON TEST | 8| 7| 7| 7| 7| 7| 7| 7| 7| 8| 7| 7| 7| 7| 8| | | | 5| 1| 1| 1| 1| 1| 1| 1| 1| 5| 1| 1| 1| 1| 5| | | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| | O | B6C3F1 MICE MALE | 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| 2| | A | 2200 PPM | 8| 8| 8| 8| 9| 9| 9| 9| 9| 9| 9| 9| 9| 9| 0| | L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | | _____________________________________________________________________________________________________________________|____________| ALIMENTARY SYSTEM - cont | | | Inflammation, Chronic | | 1 1.0| |__________________________________________________________________________|____________| Pharynx | + + + + + + + + + + + + + + + | 40 | |__________________________________________________________________________|____________| Salivary Glands | + + + + + + + + + + + + + + + | 40 | |__________________________________________________________________________|____________| Stomach, Forestomach | + + + + + + + + + + + + + + + | 40 | Angiectasis | 1 | 2 1.5| Epithelium, Hyperplasia | 3 1 2 2 4 | 19 2.7| |__________________________________________________________________________|____________| Stomach, Glandular | + + + + + + + + + + + + + + + | 38 | Hyperplasia | | 2 1.5| |__________________________________________________________________________|____________| Tongue | + + + + + + + + + + + + + + + | 40 | _____________________________________________________________________________________________________________________| | CARDIOVASCULAR SYSTEM | | | |__________________________________________________________________________|____________| Blood Vessel | + + + + + + + + + + + + + + + | 38 | |__________________________________________________________________________|____________| Heart | + + + + + + + + + + + + + + + | 40 | _____________________________________________________________________________________________________________________| | ENDOCRINE SYSTEM | | | |__________________________________________________________________________|____________| Adrenal Cortex | + + + + + + + + + + + + + + + | 39 | Hematopoietic Cell Proliferation | | 1 2.0| Hyperplasia | 1 1 1 1 | 8 1.0| Hypertrophy, Focal | 1 1 1 1 | 6 1.2| |__________________________________________________________________________|____________| Adrenal Medulla | + + + + + + + + + + + + + + + | 39 | |__________________________________________________________________________|____________| Islets, Pancreatic | + + + + + + + + + + + + + + + | 40 | Hyperplasia | 1 1 1 2 1 3 1 | 16 1.3| |__________________________________________________________________________|____________| Parathyroid Gland | M + + + M + M + + + M + + + + | 32 | _____________________________________________________________________________________________________________________|____________| * : 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 49 NTP Experiment-Test: 05135-06 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: SIX MONTH EXPOS. ISOPRENE Date: 10/15/04 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 13:31:26 __________________________________________________________________________________________________________________________________ | 1| 3| 3| 3| 3| 3| 3| 3| 3| 1| 3| 3| 3| 3| 1| | | DAY ON TEST | 8| 7| 7| 7| 7| 7| 7| 7| 7| 8| 7| 7| 7| 7| 8| | | | 5| 1| 1| 1| 1| 1| 1| 1| 1| 5| 1| 1| 1| 1| 5| | | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| | O | B6C3F1 MICE MALE | 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| 2| | A | 2200 PPM | 8| 8| 8| 8| 9| 9| 9| 9| 9| 9| 9| 9| 9| 9| 0| | L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | | _____________________________________________________________________________________________________________________|____________| ENDOCRINE SYSTEM - cont | | | |__________________________________________________________________________|____________| Pituitary Gland | M + + + + + + + + + + + + + + | 37 | |__________________________________________________________________________|____________| Thyroid Gland | + + + + + + + + + + + + + + + | 39 | Cyst | X | 1 | Follicular Cell, Hyperplasia | 1 | 1 1.0| _____________________________________________________________________________________________________________________| | GENERAL BODY SYSTEM | | | None | | | _____________________________________________________________________________________________________________________| | GENITAL SYSTEM | | | |__________________________________________________________________________|____________| Epididymis | + + + + + + + + + + + + + + + | 40 | |__________________________________________________________________________|____________| Preputial Gland | + + + + + + + + + + + + + + + | 39 | Atrophy | | 1 4.0| Inflammation, Suppurative | | 1 1.0| |__________________________________________________________________________|____________| Prostate | + + + + M + + + + + + + + + + | 39 | Hyperplasia | 2 | 2 1.5| |__________________________________________________________________________|____________| Seminal Vesicle | + + + + + + + + + + + + + + + | 40 | |__________________________________________________________________________|____________| Testes | + + + + + + + + + + + + + + + | 40 | _____________________________________________________________________________________________________________________| | HEMATOPOIETIC SYSTEM | | | |__________________________________________________________________________|____________| Bone Marrow | + + + + + + + + + + + + + + + | 40 | Angiectasis | | 1 4.0| Hyperplasia | 3 | 2 3.0| |__________________________________________________________________________|____________| Lymph Node, Bronchial | + + + + + + M M + + + + + + + | 35 | |__________________________________________________________________________|____________| Lymph Node, Mandibular | + + + + + + + + + + M + + + M | 33 | _____________________________________________________________________________________________________________________|____________| * : 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: 05135-06 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: SIX MONTH EXPOS. ISOPRENE Date: 10/15/04 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 13:31:26 __________________________________________________________________________________________________________________________________ | 1| 3| 3| 3| 3| 3| 3| 3| 3| 1| 3| 3| 3| 3| 1| | | DAY ON TEST | 8| 7| 7| 7| 7| 7| 7| 7| 7| 8| 7| 7| 7| 7| 8| | | | 5| 1| 1| 1| 1| 1| 1| 1| 1| 5| 1| 1| 1| 1| 5| | | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| | O | B6C3F1 MICE MALE | 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| 2| | A | 2200 PPM | 8| 8| 8| 8| 9| 9| 9| 9| 9| 9| 9| 9| 9| 9| 0| | L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | | _____________________________________________________________________________________________________________________|____________| HEMATOPOIETIC SYSTEM - cont | | | |__________________________________________________________________________|____________| Lymph Node, Mesenteric | + + + + + + + + + + + + + + + | 39 | Hyperplasia | 4 | 1 4.0| |__________________________________________________________________________|____________| Lymph Node, Mediastinal | + M M M M M M + + + + + + + M | 20 | Hyperplasia | 3 | 1 3.0| |__________________________________________________________________________|____________| Spleen | + + + + + + + + + + + + + + + | 40 | Hematopoietic Cell Proliferation | 4 | 2 3.5| Pigmentation, Melanin | | 1 1.0| |__________________________________________________________________________|____________| Thymus | + + + + + + + + + + + + + + + | 39 | Atrophy | | 1 3.0| _____________________________________________________________________________________________________________________| | INTEGUMENTARY SYSTEM | | | |__________________________________________________________________________|____________| Mammary Gland | M M M M M M M M M M M M M M M | | |__________________________________________________________________________|____________| Skin | + + + + + + + + + + + + + + + | 40 | Cyst Epithelial Inclusion | | 1 | Hemorrhage | | 1 3.0| Prepuce, Inflammation, Chronic | 3 | 2 3.5| _____________________________________________________________________________________________________________________| | MUSCULOSKELETAL SYSTEM | | | |__________________________________________________________________________|____________| Bone | + + + + + + + + + + + + + + + | 40 | |__________________________________________________________________________|____________| Skeletal Muscle | + + + + + + + + + + + + + + + | 40 | Inflammation | 1 | 1 1.0| _____________________________________________________________________________________________________________________| | NERVOUS SYSTEM | | | |__________________________________________________________________________|____________| Brain | + + + + + + + + + + + + + + + | 40 | Mineralization | 1 | 2 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 51 NTP Experiment-Test: 05135-06 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: SIX MONTH EXPOS. ISOPRENE Date: 10/15/04 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 13:31:26 __________________________________________________________________________________________________________________________________ | 1| 3| 3| 3| 3| 3| 3| 3| 3| 1| 3| 3| 3| 3| 1| | | DAY ON TEST | 8| 7| 7| 7| 7| 7| 7| 7| 7| 8| 7| 7| 7| 7| 8| | | | 5| 1| 1| 1| 1| 1| 1| 1| 1| 5| 1| 1| 1| 1| 5| | | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| | O | B6C3F1 MICE MALE | 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| 2| | A | 2200 PPM | 8| 8| 8| 8| 9| 9| 9| 9| 9| 9| 9| 9| 9| 9| 0| | L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | | _____________________________________________________________________________________________________________________|____________| NERVOUS SYSTEM - cont | | | |__________________________________________________________________________|____________| Peripheral Nerve | + + + + + + + + + + + + + + + | 38 | Sciatic, Degeneration | | 1 2.0| |__________________________________________________________________________|____________| Spinal Cord | + + + + + + + + + + + + + + + | 39 | Degeneration | 1 1 1 1 1 1 1 1 1 1 1 1 | 18 1.0| _____________________________________________________________________________________________________________________| | RESPIRATORY SYSTEM | | | |__________________________________________________________________________|____________| Larynx | + + + + + + + + + + + + + + + | 38 | |__________________________________________________________________________|____________| Lung | + + + + + + + + + + + + + + + | 40 | Hemorrhage | 1 | 2 1.5| Alveolar Epithelium, Hyperplasia | 2 | 5 1.8| |__________________________________________________________________________|____________| Nose | + + + + + + + + + + + + + + + | 40 | Turbinate, Olfactory Epithelium, | | | Degeneration | 1 1 2 2 1 2 1 1 1 2 | 26 1.3| Turbinate, Olfactory Epithelium, | | | Inflammation, Chronic | | 1 1.0| |__________________________________________________________________________|____________| Trachea | + + + + + + + + + + + + + + + | 40 | _____________________________________________________________________________________________________________________| | SPECIAL SENSES SYSTEM | | | |__________________________________________________________________________|____________| Eye | + + + + + + + + + + + + + + + | 40 | |__________________________________________________________________________|____________| Harderian Gland | + + + + + + + + + + + + + + + | 40 | Hyperplasia | 3 | 3 1.7| |__________________________________________________________________________|____________| Zymbal's Gland | + + + + + + + + + + + + + + + | 40 | _____________________________________________________________________________________________________________________| | URINARY 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: 05135-06 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: SIX MONTH EXPOS. ISOPRENE Date: 10/15/04 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 13:31:26 __________________________________________________________________________________________________________________________________ | 1| 3| 3| 3| 3| 3| 3| 3| 3| 1| 3| 3| 3| 3| 1| | | DAY ON TEST | 8| 7| 7| 7| 7| 7| 7| 7| 7| 8| 7| 7| 7| 7| 8| | | | 5| 1| 1| 1| 1| 1| 1| 1| 1| 5| 1| 1| 1| 1| 5| | | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| | O | B6C3F1 MICE MALE | 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| 2| | A | 2200 PPM | 8| 8| 8| 8| 9| 9| 9| 9| 9| 9| 9| 9| 9| 9| 0| | L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | | _____________________________________________________________________________________________________________________|____________| URINARY SYSTEM - cont | | | Kidney | + + + + + + + + + + + + + + + | 40 | Bilateral, Hydronephrosis | | 1 2.0| Bilateral, Metaplasia, Osseous | 1 | 1 1.0| Bilateral, Renal Tubule, Hyperplasia | | 2 1.0| |__________________________________________________________________________|____________| Urinary Bladder | + + + + + + + + + + + + + + + | 40 | __________________________________________________________________________________________________________________________________ * : 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: 05135-06 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: SIX MONTH EXPOS. ISOPRENE Date: 10/15/04 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 13:31:26 _____________________________________________________________________________________________________________________ | 3| 1| 3| 1| 1| 1| 1| 1| 3| 1| 1| 1| 3| 3| 1| 3| 2| 3| 3| 3| 3| 3| 1| 1| 3| DAY ON TEST | 7| 2| 7| 8| 8| 2| 2| 8| 1| 4| 8| 8| 7| 7| 8| 7| 0| 7| 7| 7| 7| 7| 8| 8| 7| | 1| 3| 1| 5| 5| 8| 3| 3| 7| 6| 5| 3| 1| 1| 5| 1| 9| 1| 1| 1| 1| 1| 3| 5| 1| __________________________________________|__________________________________________________________________________| | 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| B6C3F1 MICE 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| 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 | + A + + + + + + + + + + + + + + + + + + + + + + +| |__________________________________________________________________________| Gallbladder | + A + + + + A + + + + + M + M M + + + + + + + + +| |__________________________________________________________________________| Intestine Large, Colon | + A + + + + + + + + + + + + + + + + + + + + + + +| |__________________________________________________________________________| Intestine Large, Rectum | + A + + + + + + + + + + + + + + + + + + + + + + +| |__________________________________________________________________________| Intestine Large, Cecum | + A + + + + A + + + + + + + + + + + + + + + + + +| |__________________________________________________________________________| Intestine Small, Duodenum | + A + + + + A + + + + + M + + + + + + + + + + + +| |__________________________________________________________________________| Intestine Small, Jejunum | + A + + + + A + + + + + + + + + + + + + + + + + +| Parasite | X | |__________________________________________________________________________| Intestine Small, Ileum | + A + + + + A + + + + + + + + + + + + + + + + + +| Parasite | X | |__________________________________________________________________________| Liver | + A + + + + + + + + + + + + + + + + + + + + + + +| Angiectasis | 2 1 | Basophilic Focus | 4 4 4 2 | Clear Cell Focus | | Eosinophilic Focus | 2 X 2 | Hematopoietic Cell Proliferation | 1 | Mixed Cell Focus | 2 2 | Necrosis | 1 1 | Vacuolization Cytoplasmic | 2 2 1 1 1 1 2 2 2 2 2| Bile Duct, Hyperplasia | 2 | |__________________________________________________________________________| Mesentery | + | Necrosis | 4 | |__________________________________________________________________________| Pancreas | + A + + + + + + + + + + + + + + + + + + + + + + +| Angiectasis | | Focal Cellular Change | 1 2 1 1 1 | Inflammation, Chronic | | Duct, Cyst | | __________________________________________|__________________________________________________________________________| Page 54 NTP Experiment-Test: 05135-06 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: SIX MONTH EXPOS. ISOPRENE Date: 10/15/04 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 13:31:26 _____________________________________________________________________________________________________________________ | 3| 1| 3| 1| 1| 1| 1| 1| 3| 1| 1| 1| 3| 3| 1| 3| 2| 3| 3| 3| 3| 3| 1| 1| 3| DAY ON TEST | 7| 2| 7| 8| 8| 2| 2| 8| 1| 4| 8| 8| 7| 7| 8| 7| 0| 7| 7| 7| 7| 7| 8| 8| 7| | 1| 3| 1| 5| 5| 8| 3| 3| 7| 6| 5| 3| 1| 1| 5| 1| 9| 1| 1| 1| 1| 1| 3| 5| 1| __________________________________________|__________________________________________________________________________| | 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| B6C3F1 MICE 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| 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 - cont | | |__________________________________________________________________________| Pharynx | + + + + + + + + + + + + + + + + + + + + + + + + +| |__________________________________________________________________________| Salivary Glands | + A + + + + + + + + + + + + + + + + + + + + + + +| |__________________________________________________________________________| Stomach, Forestomach | + A + + + + + + + + + + + + + + + + + + + + + + +| Epithelium, Hyperplasia | 3 2 2 4 4 3 2 2 4 4| |__________________________________________________________________________| Stomach, Glandular | + A + + + + A + + + + + + + + + + + + + + + + + +| Hyperplasia | 2 2 1| Inflammation, Suppurative | 1 2 | Necrosis | 1 2 | |__________________________________________________________________________| Tongue | + + + + + + + + + + + + + + + + + + + + + + + + +| _____________________________________________________________________________________________________________________| CARDIOVASCULAR SYSTEM | | |__________________________________________________________________________| Blood Vessel | + A + + + + + + + + + + + + + + + + + + + + + + +| |__________________________________________________________________________| Heart | + A + + + + + + + + + + + + + + + + + + + + + + +| _____________________________________________________________________________________________________________________| ENDOCRINE SYSTEM | | |__________________________________________________________________________| Adrenal Cortex | + A + + + + + + + + + + + + + + + + + + + + + + +| Hyperplasia, Focal | | Hyperplasia | 1 2 1 1 1 | Hypertrophy, Focal | 1 1 1| |__________________________________________________________________________| Adrenal Medulla | + A + + + + + + + + + + + + + + + + + + + + + + +| |__________________________________________________________________________| Islets, Pancreatic | + A + + + + + + + + + + + + + + + + + + + + + + +| Angiectasis | | Hyperplasia | 1 1 2 1 1 1 1 1 | |__________________________________________________________________________| Parathyroid Gland | + M + M + + + + + + + + + M + + M + + + + + + + +| |__________________________________________________________________________| Pituitary Gland | + A + + + + + + + + + + + + + + + + + + + + + + +| |__________________________________________________________________________| __________________________________________|__________________________________________________________________________| Page 55 NTP Experiment-Test: 05135-06 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: SIX MONTH EXPOS. ISOPRENE Date: 10/15/04 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 13:31:26 _____________________________________________________________________________________________________________________ | 3| 1| 3| 1| 1| 1| 1| 1| 3| 1| 1| 1| 3| 3| 1| 3| 2| 3| 3| 3| 3| 3| 1| 1| 3| DAY ON TEST | 7| 2| 7| 8| 8| 2| 2| 8| 1| 4| 8| 8| 7| 7| 8| 7| 0| 7| 7| 7| 7| 7| 8| 8| 7| | 1| 3| 1| 5| 5| 8| 3| 3| 7| 6| 5| 3| 1| 1| 5| 1| 9| 1| 1| 1| 1| 1| 3| 5| 1| __________________________________________|__________________________________________________________________________| | 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| B6C3F1 MICE 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| 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 | | Thyroid Gland | + A + + + + + + + + + + + + + + + + + + + + + + +| Cyst | | _____________________________________________________________________________________________________________________| GENERAL BODY SYSTEM | | None | | _____________________________________________________________________________________________________________________| GENITAL SYSTEM | | |__________________________________________________________________________| Epididymis | + + + + + + + + + + + + + + + + + + + + + + + + +| Hyperplasia | 4 | Inflammation | 1 | |__________________________________________________________________________| Penis | + + | |__________________________________________________________________________| Preputial Gland | + A + + + + + + + + + + + + + + + + + + + + + + M| Angiectasis | | Atrophy | 4 | Inflammation, Chronic | 2 | |__________________________________________________________________________| Prostate | + M + + + + + + + + + + + + + + + + + + + + + + M| |__________________________________________________________________________| Seminal Vesicle | + A + + + + + + + + + + + + + + + + + + + + + + +| |__________________________________________________________________________| Testes | + + + + + + + + + + + + + + + + + + + + + + + + +| Atrophy | 1 1 3 2 2 | Mineralization | | _____________________________________________________________________________________________________________________| HEMATOPOIETIC SYSTEM | | |__________________________________________________________________________| Bone Marrow | + A + + + + + + + + + + + + + + + + + + + + + + +| Hyperplasia | 2 2 3 | |__________________________________________________________________________| Lymph Node, Bronchial | + M M + + M + + + + + + + + + + + + + M + + + M +| |__________________________________________________________________________| Lymph Node, Mandibular | + M + + + M + + + M + + + M + + + M M + + M M + M| |__________________________________________________________________________| Lymph Node, Mesenteric | + A + + + + + + + + + + + + + + + + + + + + + + +| |__________________________________________________________________________| __________________________________________|__________________________________________________________________________| Page 56 NTP Experiment-Test: 05135-06 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: SIX MONTH EXPOS. ISOPRENE Date: 10/15/04 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 13:31:26 _____________________________________________________________________________________________________________________ | 3| 1| 3| 1| 1| 1| 1| 1| 3| 1| 1| 1| 3| 3| 1| 3| 2| 3| 3| 3| 3| 3| 1| 1| 3| DAY ON TEST | 7| 2| 7| 8| 8| 2| 2| 8| 1| 4| 8| 8| 7| 7| 8| 7| 0| 7| 7| 7| 7| 7| 8| 8| 7| | 1| 3| 1| 5| 5| 8| 3| 3| 7| 6| 5| 3| 1| 1| 5| 1| 9| 1| 1| 1| 1| 1| 3| 5| 1| __________________________________________|__________________________________________________________________________| | 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| B6C3F1 MICE 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| 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 | | Lymph Node, Mediastinal | M M M M M M + M + M + + M + M + + + + + + M + M +| |__________________________________________________________________________| Spleen | + A + + + + + + + + + + + + + + + + + + + + + + +| Hematopoietic Cell Proliferation | 1 3 2 | |__________________________________________________________________________| Thymus | + M + + + M + + + M + + + + + + + + + + + + + + +| Necrosis | | _____________________________________________________________________________________________________________________| INTEGUMENTARY SYSTEM | | |__________________________________________________________________________| Mammary Gland | M M M M M M M M M M M M M M M M M M M M M M M M M| |__________________________________________________________________________| Skin | + + + + + + + + + + + + + + + + + + + + + + + + +| Inflammation, Suppurative | 1 | Prepuce, Inflammation, Chronic | 4 | Sebaceous Gland, Hyperplasia | 4 | _____________________________________________________________________________________________________________________| MUSCULOSKELETAL SYSTEM | | |__________________________________________________________________________| Bone | + A + + + + + + + + + + + + + + + + + + + + + + +| |__________________________________________________________________________| Skeletal Muscle | + A + + + + + + + + + + + + + + + + + + + + + + +| Atrophy | 1 1 1 | _____________________________________________________________________________________________________________________| NERVOUS SYSTEM | | |__________________________________________________________________________| Brain | + A + + + + + + + + + + + + + + + + + + + + + + +| |__________________________________________________________________________| Peripheral Nerve | + A + + + + + + + + + + + + + + + + + + + + + + +| Sciatic, Degeneration | 1 1 1 2 1 | |__________________________________________________________________________| Spinal Cord | + A + + + + + + + + + + + + + + + + + + + + + + +| Degeneration | 1 1 1 1 1 1 1 1 1 2 1 1 1 1 1| Meninges, Cyst Epithelial Inclusion | X | _____________________________________________________________________________________________________________________| RESPIRATORY SYSTEM | | |__________________________________________________________________________| Larynx | + A + + + + + + + + + + + + + + + + + + + + + + +| __________________________________________|__________________________________________________________________________| Page 57 NTP Experiment-Test: 05135-06 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: SIX MONTH EXPOS. ISOPRENE Date: 10/15/04 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 13:31:26 _____________________________________________________________________________________________________________________ | 3| 1| 3| 1| 1| 1| 1| 1| 3| 1| 1| 1| 3| 3| 1| 3| 2| 3| 3| 3| 3| 3| 1| 1| 3| DAY ON TEST | 7| 2| 7| 8| 8| 2| 2| 8| 1| 4| 8| 8| 7| 7| 8| 7| 0| 7| 7| 7| 7| 7| 8| 8| 7| | 1| 3| 1| 5| 5| 8| 3| 3| 7| 6| 5| 3| 1| 1| 5| 1| 9| 1| 1| 1| 1| 1| 3| 5| 1| __________________________________________|__________________________________________________________________________| | 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| B6C3F1 MICE 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| 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 | | Inflammation | 1 | |__________________________________________________________________________| Lung | + A + + + + + + + + + + + + + + + + + + + + + + +| Congestion | 3 | Hemorrhage | 1 2 | Thrombosis | 1 | Alveolar Epithelium, Hyperplasia | 1 1 | |__________________________________________________________________________| Nose | + A + + + + + + + + + + + + + + + + + + + + + + +| Inflammation | 2 2 | Turbinate, Inflammation, Suppurative | 2 | Turbinate, Olfactory Epithelium, | | Degeneration | 2 2 2 1 2 1 1 2 2 2 2 2 3 1 2 2 2 2 3 2 1 2 1 2| Turbinate, Olfactory Epithelium, | | Inflammation, Chronic | 1 2 1 1 1 1 1 2 1 1 2 2 1 1 1 1 2| |__________________________________________________________________________| Trachea | + A + + + + + + + + + + + + + + + + + + + + + + +| _____________________________________________________________________________________________________________________| SPECIAL SENSES SYSTEM | | |__________________________________________________________________________| Eye | + + + + + + + + + + + + + + + + + + + + + + + + +| Inflammation, Chronic | 3 | |__________________________________________________________________________| Harderian Gland | + A + + + + + + + + + + + + + + + + + + + + + + +| Hyperplasia | 2 2 | |__________________________________________________________________________| Zymbal's Gland | + + + + + + + + + + + + + + + + + + + + + + + + +| _____________________________________________________________________________________________________________________| URINARY SYSTEM | | |__________________________________________________________________________| Kidney | + A + + + + + + + + + + + + + + + + + + + + + + +| Bilateral, Fibrosis, Focal | 2 | Bilateral, Fibrosis | 2 | Bilateral, Hydronephrosis | 2 | Bilateral, Nephropathy | 2 | |__________________________________________________________________________| Urinary Bladder | + A + + + + + + + + + + + + + + + + + + + + + + +| Inflammation, Suppurative | 1 | __________________________________________|__________________________________________________________________________ Page 58 NTP Experiment-Test: 05135-06 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: SIX MONTH EXPOS. ISOPRENE Date: 10/15/04 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 13:31:26 __________________________________________________________________________________________________________________________________ | 1| 3| 3| 3| 3| 3| 1| 1| 3| 1| 3| 3| 3| 3| 3| | | DAY ON TEST | 8| 7| 7| 7| 7| 7| 8| 2| 7| 2| 7| 7| 7| 7| 1| | | | 3| 1| 1| 1| 1| 1| 3| 8| 1| 3| 1| 1| 1| 1| 7| | | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| | O | B6C3F1 MICE MALE | 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| | A | 7000 PPM | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| | L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | | _____________________________________________________________________________________________________________________|____________| ALIMENTARY SYSTEM | | | |__________________________________________________________________________|____________| Esophagus | + + + + + + + + + A + + + + + | 38 | |__________________________________________________________________________|____________| Gallbladder | + + + + + + + + + A + + + + A | 33 | |__________________________________________________________________________|____________| Intestine Large, Colon | + + + + + + + + + A + + + + + | 38 | |__________________________________________________________________________|____________| Intestine Large, Rectum | + + + + + + + + + A + + + + + | 38 | |__________________________________________________________________________|____________| Intestine Large, Cecum | + + + + + + + + + A + + + + + | 37 | |__________________________________________________________________________|____________| Intestine Small, Duodenum | + + + + + + + + + A + + + + + | 36 | |__________________________________________________________________________|____________| Intestine Small, Jejunum | + + + + + + + + + A + + + + A | 36 | Parasite | | 1 | |__________________________________________________________________________|____________| Intestine Small, Ileum | + + + + + + + + + A + + + + A | 36 | Parasite | | 1 | |__________________________________________________________________________|____________| Liver | + + + + + + + + + A + + + + + | 38 | Angiectasis | | 2 1.5| Basophilic Focus | | 4 3.5| Clear Cell Focus | 1 | 1 1.0| Eosinophilic Focus | | 3 2.0| Hematopoietic Cell Proliferation | | 1 1.0| Mixed Cell Focus | 2 | 3 2.0| Necrosis | | 2 1.0| Vacuolization Cytoplasmic | 1 3 3 | 14 1.8| Bile Duct, Hyperplasia | | 1 2.0| |__________________________________________________________________________|____________| Mesentery | + | 2 | Necrosis | 2 | 2 3.0| |__________________________________________________________________________|____________| Pancreas | + + + + + + + + + A + + + + + | 38 | _____________________________________________________________________________________________________________________|____________| * : 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: 05135-06 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: SIX MONTH EXPOS. ISOPRENE Date: 10/15/04 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 13:31:26 __________________________________________________________________________________________________________________________________ | 1| 3| 3| 3| 3| 3| 1| 1| 3| 1| 3| 3| 3| 3| 3| | | DAY ON TEST | 8| 7| 7| 7| 7| 7| 8| 2| 7| 2| 7| 7| 7| 7| 1| | | | 3| 1| 1| 1| 1| 1| 3| 8| 1| 3| 1| 1| 1| 1| 7| | | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| | O | B6C3F1 MICE MALE | 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| | A | 7000 PPM | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| | L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | | _____________________________________________________________________________________________________________________|____________| ALIMENTARY SYSTEM - cont | | | Angiectasis | 1 | 1 1.0| Focal Cellular Change | 1 | 6 1.2| Inflammation, Chronic | 2 | 1 2.0| Duct, Cyst | X | 1 | |__________________________________________________________________________|____________| Pharynx | + + + + + + + + + + + + + + + | 40 | |__________________________________________________________________________|____________| Salivary Glands | + + + + + + + + + A + + + + + | 38 | |__________________________________________________________________________|____________| Stomach, Forestomach | + + + + + + + + + A + + + + + | 38 | Epithelium, Hyperplasia | 2 1 3 1 4 | 15 2.7| |__________________________________________________________________________|____________| Stomach, Glandular | + + + + + + + + + A + + + + + | 37 | Hyperplasia | 1 | 4 1.5| Inflammation, Suppurative | | 2 1.5| Necrosis | | 2 1.5| |__________________________________________________________________________|____________| Tongue | + + + + + + + + + + + + + + + | 40 | _____________________________________________________________________________________________________________________| | CARDIOVASCULAR SYSTEM | | | |__________________________________________________________________________|____________| Blood Vessel | + + + + + + + + + A + + + + + | 38 | |__________________________________________________________________________|____________| Heart | + + + + + + + + + A + + + + + | 38 | _____________________________________________________________________________________________________________________| | ENDOCRINE SYSTEM | | | |__________________________________________________________________________|____________| Adrenal Cortex | + + + + + + + + + A + + + + + | 38 | Hyperplasia, Focal | 1 | 1 1.0| Hyperplasia | 1 | 6 1.2| Hypertrophy, Focal | 1 | 4 1.0| |__________________________________________________________________________|____________| Adrenal Medulla | + + + + + + + + + A + + + + + | 38 | |__________________________________________________________________________|____________| _____________________________________________________________________________________________________________________|____________| * : 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: 05135-06 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: SIX MONTH EXPOS. ISOPRENE Date: 10/15/04 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 13:31:26 __________________________________________________________________________________________________________________________________ | 1| 3| 3| 3| 3| 3| 1| 1| 3| 1| 3| 3| 3| 3| 3| | | DAY ON TEST | 8| 7| 7| 7| 7| 7| 8| 2| 7| 2| 7| 7| 7| 7| 1| | | | 3| 1| 1| 1| 1| 1| 3| 8| 1| 3| 1| 1| 1| 1| 7| | | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| | O | B6C3F1 MICE MALE | 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| | A | 7000 PPM | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| | L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | | _____________________________________________________________________________________________________________________|____________| ENDOCRINE SYSTEM - cont | | | Islets, Pancreatic | + + + + + + + + + A + + + + + | 38 | Angiectasis | 1 | 1 1.0| Hyperplasia | 1 2 1 1 2 | 13 1.2| |__________________________________________________________________________|____________| Parathyroid Gland | + + + + + + + + + M + + + + M | 34 | |__________________________________________________________________________|____________| Pituitary Gland | + + + + + M + + + A + + M + M | 35 | |__________________________________________________________________________|____________| Thyroid Gland | + + + + + + + + + A + + + + + | 38 | Cyst | X | 1 | _____________________________________________________________________________________________________________________| | GENERAL BODY SYSTEM | | | None | | | _____________________________________________________________________________________________________________________| | GENITAL SYSTEM | | | |__________________________________________________________________________|____________| Epididymis | + + + + + + + + + A + + + + + | 39 | Hyperplasia | | 1 4.0| Inflammation | | 1 1.0| |__________________________________________________________________________|____________| Penis | A | 2 | |__________________________________________________________________________|____________| Preputial Gland | + + + + + + + + + A + + + + + | 37 | Angiectasis | 1 | 1 1.0| Atrophy | | 1 4.0| Inflammation, Chronic | | 1 2.0| |__________________________________________________________________________|____________| Prostate | + + + + + + + + + M + + + + + | 37 | |__________________________________________________________________________|____________| Seminal Vesicle | + + + + + + + + + A + + + + + | 38 | |__________________________________________________________________________|____________| Testes | + + + + + + + + + A + + + + + | 39 | Atrophy | 3 3 1 | 8 2.0| Mineralization | 1 | 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 61 NTP Experiment-Test: 05135-06 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: SIX MONTH EXPOS. ISOPRENE Date: 10/15/04 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 13:31:26 __________________________________________________________________________________________________________________________________ | 1| 3| 3| 3| 3| 3| 1| 1| 3| 1| 3| 3| 3| 3| 3| | | DAY ON TEST | 8| 7| 7| 7| 7| 7| 8| 2| 7| 2| 7| 7| 7| 7| 1| | | | 3| 1| 1| 1| 1| 1| 3| 8| 1| 3| 1| 1| 1| 1| 7| | | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| | O | B6C3F1 MICE MALE | 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| | A | 7000 PPM | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| | L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | | _____________________________________________________________________________________________________________________|____________| HEMATOPOIETIC SYSTEM | | | |__________________________________________________________________________|____________| Bone Marrow | + + + + + + + + + A + + + + + | 38 | Hyperplasia | 2 | 4 2.3| |__________________________________________________________________________|____________| Lymph Node, Bronchial | + M + + + + + + + M M + + + + | 32 | |__________________________________________________________________________|____________| Lymph Node, Mandibular | M M M + M + + + + A M + M + M | 23 | |__________________________________________________________________________|____________| Lymph Node, Mesenteric | + + + + + + + + + A + + + M + | 37 | |__________________________________________________________________________|____________| Lymph Node, Mediastinal | + + + M + M + + M A + M M + + | 22 | |__________________________________________________________________________|____________| Spleen | + + + + + + + + + A + + + + + | 38 | Hematopoietic Cell Proliferation | 2 | 4 2.0| |__________________________________________________________________________|____________| Thymus | + + + + + + + + + A + + + + + | 36 | Necrosis | 1 | 1 1.0| _____________________________________________________________________________________________________________________| | INTEGUMENTARY SYSTEM | | | |__________________________________________________________________________|____________| Mammary Gland | M M M M M M M M M M M M M M M | | |__________________________________________________________________________|____________| Skin | + + + + + + + + + A + + + + + | 39 | Inflammation, Suppurative | | 1 1.0| Prepuce, Inflammation, Chronic | 4 | 2 4.0| Sebaceous Gland, Hyperplasia | | 1 4.0| _____________________________________________________________________________________________________________________| | MUSCULOSKELETAL SYSTEM | | | |__________________________________________________________________________|____________| Bone | + + + + + + + + + + + + + + + | 39 | |__________________________________________________________________________|____________| Skeletal Muscle | + + + + + + + + + A + + + + + | 38 | Atrophy | 1 | 4 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 62 NTP Experiment-Test: 05135-06 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: SIX MONTH EXPOS. ISOPRENE Date: 10/15/04 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 13:31:26 __________________________________________________________________________________________________________________________________ | 1| 3| 3| 3| 3| 3| 1| 1| 3| 1| 3| 3| 3| 3| 3| | | DAY ON TEST | 8| 7| 7| 7| 7| 7| 8| 2| 7| 2| 7| 7| 7| 7| 1| | | | 3| 1| 1| 1| 1| 1| 3| 8| 1| 3| 1| 1| 1| 1| 7| | | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| | O | B6C3F1 MICE MALE | 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| | A | 7000 PPM | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| | L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | | _____________________________________________________________________________________________________________________|____________| NERVOUS SYSTEM | | | |__________________________________________________________________________|____________| Brain | + + + + + + + + + A + + + + + | 38 | |__________________________________________________________________________|____________| Peripheral Nerve | + + + + + + + + + A + + + + + | 38 | Sciatic, Degeneration | | 5 1.2| |__________________________________________________________________________|____________| Spinal Cord | + + + + + + + + + A + + + + + | 38 | Degeneration | 1 1 1 1 1 1 1 1 | 23 1.0| Meninges, Cyst Epithelial Inclusion | | 1 | _____________________________________________________________________________________________________________________| | RESPIRATORY SYSTEM | | | |__________________________________________________________________________|____________| Larynx | + + + + + + + + + A + + + + + | 38 | Inflammation | | 1 1.0| |__________________________________________________________________________|____________| Lung | + + + + + + + + + A + + + + + | 38 | Congestion | 2 | 2 2.5| Hemorrhage | | 2 1.5| Thrombosis | | 1 1.0| Alveolar Epithelium, Hyperplasia | 4 4 4 1 2 | 7 2.4| |__________________________________________________________________________|____________| Nose | + + + + + + + + + A + + + + + | 38 | Inflammation | | 2 2.0| Turbinate, Inflammation, Suppurative | | 1 2.0| Turbinate, Olfactory Epithelium, | | | Degeneration | 2 2 3 2 2 2 2 2 2 2 2 2 2 2 | 38 1.9| Turbinate, Olfactory Epithelium, | | | Inflammation, Chronic | 1 1 1 1 1 1 1 1 1 1 1 1 1 | 30 1.2| |__________________________________________________________________________|____________| Trachea | + + + + + + + + + A + + + + + | 38 | _____________________________________________________________________________________________________________________| | SPECIAL SENSES SYSTEM | | | |__________________________________________________________________________|____________| Eye | + + + + + + + + + + + + + + + | 40 | _____________________________________________________________________________________________________________________|____________| * : 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 63 NTP Experiment-Test: 05135-06 NONNEOPLASTIC LESIONS BY INDIVIDUAL ANIMAL Report: PEIRPT09 Study Type: SIX MONTH EXPOS. ISOPRENE Date: 10/15/04 Route: RESPIRATORY EXPOSURE WHOLE BODY Time: 13:31:26 __________________________________________________________________________________________________________________________________ | 1| 3| 3| 3| 3| 3| 1| 1| 3| 1| 3| 3| 3| 3| 3| | | DAY ON TEST | 8| 7| 7| 7| 7| 7| 8| 2| 7| 2| 7| 7| 7| 7| 1| | | | 3| 1| 1| 1| 1| 1| 3| 8| 1| 3| 1| 1| 1| 1| 7| | | __________________________________________|__________________________________________________________________________| T (*) | | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| | O | B6C3F1 MICE MALE | 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| | A | 7000 PPM | 2| 2| 2| 2| 3| 3| 3| 3| 3| 3| 3| 3| 3| 3| 4| | L | | 6| 7| 8| 9| 0| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| | | _____________________________________________________________________________________________________________________|____________| SPECIAL SENSES SYSTEM - cont | | | Inflammation, Chronic | | 1 3.0| |__________________________________________________________________________|____________| Harderian Gland | + + + + + + + + + A + + + + + | 38 | Hyperplasia | | 2 2.0| |__________________________________________________________________________|____________| Zymbal's Gland | + + + + + + + + + + + + + + + | 40 | _____________________________________________________________________________________________________________________| | URINARY SYSTEM | | | |__________________________________________________________________________|____________| Kidney | + + + + + + + + + A + + + + + | 38 | Bilateral, Fibrosis, Focal | | 1 2.0| Bilateral, Fibrosis | | 1 2.0| Bilateral, Hydronephrosis | | 1 2.0| Bilateral, Nephropathy | | 1 2.0| |__________________________________________________________________________|____________| Urinary Bladder | + + + + + + + + + A + + + + + | 38 | Inflammation, Suppurative | | 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 64 ------------------------------------------------------------ ---------- END OF REPORT ---------- ------------------------------------------------------------