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Two-Year Oncogenicity Evaluations Of Cell Phone Radiofrequency Radiation    
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Two-Year Oncogenicity Evaluations Of Cell Phone Radiofrequency Radiation
vrijdag, 01 december 2017 - Dossier: Algemeen

20 okt. 2017

“Two-Year Oncogenicity Evaluations Of Cell Phone Radiofrequency Radiation In Sprague-Dawley Rats And B6C3F1 Mice”

Toxicology Letters By David McCormick PhD

A new publication by David McCormick PhD, President and Director of the IIT Research Institute in Chicago details the findings of “significantly increased incidences of glioma (brain) and schwannoma (heart)” in male rats exposed to radio frequency (RF) radiation in the National Toxicology Program during their two year chronic non-thermal RF studies.

“Two-year oncogenicity evaluations of cell phone radiofrequency radiation in Sprague-Dawley rats and B6C3F1 mice” was published on October 20, 2017.


“Two-year studies were performed to determine if exposure to non-thermal levels of RF increases the incidence of neoplasia in any site. Male rats exposed to RF demonstrated significantly increased incidences of glioma (brain) and schwannoma (heart); these increases were not seen in female rats or in either sex of mice. “

“Gliomas and schwannomas have been identified in some epidemiology studies as possible RF-induced neoplasms. Considering (a) the conflicting results of RF epidemiology studies and (b) the lack of generally accepted biophysical or molecular mechanisms through which RF could induce or promote neoplasia, data from animal bioassays will play a central role in “weight-of-the-evidence” assessments of the possible health effects of RF exposure.”

“Well-designed and controlled studies in predictive laboratory animal models provide the best prospective opportunity to identify effects of RF exposure that may translate into human health hazards.”

McCormick D. Two-year oncogenicity evaluations of cell phone radiofrequency radiation in Sprague-Dawley rats and B6C3F1 mice. Toxicology Letters. 280 (Suppl. 1): S31. Oct 20, 2017.


In May 2016 National Toxicology Program scientists first released findings of glioma and schwannoma in radiofrequency exposed male rats.

In September 2017, scientists from the National Toxicology Program presented their data on the genotoxicity of cell phone radiation in rats and mice at the annual meeting of the Environmental Mutagenesis and Genomics Society held in Raleigh, North Carolina.
DNA damage was significantly increased in the frontal cortex of male mice from CDMA and GSM cell phone radiation, peripheral leukocytes of female mice from CDMA only, and in the hippocampus of male rats from CDMA only. There were no significant increases in micronucleated red blood cells in rats or mice.

The authors concluded that, “exposure to RFR radio frequency radiation has the potential to induce measurable DNA damage under certain exposure conditions.”

For more information on the findings of the National Toxicology Program:


NTP Report of Partial findings from the NTP Carcinogenesis Studies of Cell Phone Radiofrequency

NTP Press Release: NTP Cell Phone Radiofrequency Radiation Study: Partial Release of Findings

NTP/NIEHS Webpage on Cell Phones

Video of Presentation by NTP at NIEHS June 2016 on the Study Findings

Powerpoint Slides by Dr. Birnbaum, Director of the National Toxicology Program

NEWS MEDIA COVERAGE (See for all the links below the original paper, the link on top)

Wall Street Journal: Debate Renews Over Health Risks from Cell Phone Use

Wall Street Street Journal: Cell Phone Study Fans Cancer Worries

Consumer Reports: Does Cell Phone Use Cause Brain Cancer? What the New Study Means For You

Science Magazine: Questions abound after study links tumors to cellphone radiation

PBS: How Might Cell Phone Signals Cause Cancer May 30, 2016

PBS: Major U.S. study links cellphone exposure to cancer in rats

Scientific American: Major Cell Phone Radiation Study Reignites Cancer Questions: Exposure to radiofrequency radiation linked to tumor formation in rats

Microwave News:Cell Phone Radiation Boosts Cancer Rates in Animals; $25 Million NTP Study Finds Brain Tumors


American Cancer Society Press Release: New Study Linking Cell Phone Radiation to Cancer

American Academy of Pediatrics Responds to National Toxicology Program study


Dr. Eitan Kerem, Chair of Pediatrics at Hadassah Hebrew University Hospital

BERENIS – Swiss expert group on electromagnetic fields and non-ionising radiation, September 2016 Newsletter Review of the NTP Study

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