Toxicology Letters: National Toxicology Program Study Findings of Increased Cancers in Cell Phone Radiation Exposed Rats
“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.https://doi.org/10.1016/j.toxlet.2017.07.07
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:
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