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News Releases about NTP

  • NIEHS News Release (February 2, 2018) High Exposure to Radiofrequency Radiation Linked to Tumor Activity in Male Rats

    High exposure to radiofrequency radiation (RFR) in rodents resulted in tumors in tissues surrounding nerves in the hearts of male rats, but not female rats or any mice, according to draft studies from the National Toxicology Program (NTP). The exposure levels used in the studies were equal to and higher than the highest level permitted for local tissue exposure in cell phone emissions today. Cell phones typically emit lower levels of RFR than the maximum level allowed. NTP’s draft conclusions were released today as two technical reports, one for rat studies and one for mouse studies. NTP will hold an external expert review of its complete findings from these rodent studies March 26-28.

  • NIEHS News Release (January 30 , 2018) Roadmap to Guide Progress Toward Replacing Animal Use in Toxicity Testing
    Sixteen federal agencies partnered to develop a strategic roadmap that offers a new framework for the safety testing of drugs and chemicals, which aims to provide more human relevant toxicology data while reducing the use of animals. The roadmap was published Jan. 30 by the National Toxicology Program (NTP), a federal interagency program headquartered at the National Institute of Environmental Health Sciences (NIEHS) in North Carolina. NIEHS is part of the National Institutes of Health.
  • NIEHS News Release (January 12, 2018) Brian Berridge Tapped to Manage National Toxicology Program

    The National Toxicology Program (NTP) has named Brian Berridge, D.V.M., Ph.D., as its new Associate Director. Berridge will oversee day-to-day operations as NTP coordinates toxicology research and testing across nine different federal agencies, including the National Institutes of Health, the U.S. Food and Drug Administration, and the Centers for Disease Control and Prevention.
  • NIH News Release (November 3, 2016) Seven substances added to 14th Report on Carcinogens

    Today’s release of the U.S. Department of Health and Human Services 14th Report on Carcinogens includes seven newly reviewed substances, bringing the cumulative total to 248 listings.
  • NIEHS News Release (May 27, 2016) Media Telebriefing: NTP Cell Phone Radiofrequency Radiation Study: Partial Release of Findings

    NTP is releasing a report of its findings in rats. These findings are available at The report is titled, “Report of Partial Findings From the National Toxicology Program Carcinogenesis Studies of Cell Phone Radiofrequency Radiation in Hsd: Sprague Dawley SD Rats (Whole Body Exposure).” Studies in mice are still underway.
  • EPA News Release (January 8, 2016) Federal Agencies Partner to Launch the Transform Tox Testing Challenge to Improve Chemical Screening

    U.S. Environmental Protection Agency (EPA) and the National Institutes of Health’s (NIH) National Center for Advancing Translational Sciences (NCATS), and NIH’s National Toxicology Program (NTP) within the National Institute of Environmental Health Sciences (NIEHS) are announcing a new challenge that will award up to $1 million to improve the relevance and predictivity of data generated from automated chemical screening technology used for toxicity testing.
  • West Virginia Department of Health and Human Resources (June 16, 2015) NTP Findings consistent with actions taken during chemical spill

  • The National Toxicology Program (NTP) has completed a series of short-term toxicity studies it conducted over the past year to evaluate chemicals spilled into the Elk River in 2014.
    The West Virginia Department of Health and Human Resources (DHHR) noted the scientific studies conducted by the National Toxicology Program indicate West Virginia took appropriate public health measures during the 2014 Elk River Chemical Spill.
  • NIEHS News Release (November 6, 2014) Diversity Outbread mice better predict potential human responses to chemical exposures

  • A genetically diverse mouse model is able to predict the range of response to chemical exposures that might be observed in human populations, researchers from the National Institutes of Health have found. Like humans, each Diversity Outbred mouse is genetically unique, and the extent of genetic variability among these mice is similar to the genetic variation seen among humans.
  • NIEHS News Release (October 2, 2014) HHS Releases 13th Report on Carcinogens

  • Four substances have been added in the U.S. Department of Health and Human Services 13th Report on Carcinogens, a science-based document that identifies chemical, biological, and physical agents that are considered cancer hazards for people living in the United States. The new report includes 243 listings.
  • NIEHS News Release (July 8, 2014) Low Doses of Arsenic Cause Cancer in Male Mice

  • Mice exposed to low doses of arsenic in drinking water, similar to what some people might consume, developed lung cancer, researchers at the National Institutes of Health have found.