RF animal studies

September 17, 2019

The U.S. National Toxicology Program (NTP) will soon embark on a new phase of its long-running RF project. Last year, the NTP concluded that RF radiation causes cancer; now it will begin a systematic search for mechanisms to explain how and why the tumors developed. Work is expected to begin by the end of the year.

The research plan is wide-ranging. It will include studies on gene expression, oxidative stress and DNA damage and repair, as well as on the possible role played by heat. Other priorities on the NTP agenda are studies on behavior and stress.

May 6, 2019

Advisors for Japan, Korea NTP Repeat

The Japanese Ministry of Internal Affairs and Communications is circulating a report on the partial replication of the U.S. National Toxicology Program’s RF–animal study, planned by Korean and Japanese officials. It includes the proposed candidates for the project’s International Steering Committee.

They are:
• Alexander Lerchl, Jacobs University, Germany
•...

November 17, 2018

“Evaluation of the NTP and Ramazzini Studies,” BERENIS Newsletter, November 2018.

This expert group on EMF/NIR, which advises the Swiss Federal Office for the Environment, states that these two animal cancer studies are “the most comprehensive” to date. Despite their methodological differences, they both showed “relatively consistent results in schwannomas and gliomas, as well as a dose-dependent trend to an increase in the carcinogenicity of these tumors.” Based on these findings, ...

November 9, 2018

How NTP Controlled Coverageof Cell Phone Cancer Story

Much of the press coverage of the final NTP cell phone/cancer report was lousy. This time, the NTP seems to have wanted it that way.

Reporters were given very little notice to join the NTP teleconference on the release of the report. Nor was there much time to prepare a story for publication.

I received an email at 10:45 am on October 31 for a teleconference at 2 pm that same day. Many reporters missed the advisory and the call. Editors had little time to assign the story.

Attendance on the teleconference was spotty.

November 1, 2018

Cell Phone Radiation Leads to Cancer, Says U.S. NTP in Final Report

“We believe that the link between radiofrequency (RF) radiation and tumors in male rats is real,” says John Bucher, the former associate director of the U.S. National Toxicology Program (NTP).

The announcement accompanies this morning’s release of the NTP final reports of studies on cancer in rats and mice exposed to cell phone radiation. Bucher’s project, the largest in NTP history, cost $30 million and took more than ten years to complete.

The NTP found what it calls “clear evidence” that two different types of cell phone signals, GSM and CDMA, increased the incidence of malignant tumors in the hearts of male rats over the course of the two-year study.

October 23, 2018

Japan and Korea Planning Their Own Cell Phone Animal Studies

Japanese and Korean officials are working on a partial replication of the U.S. National Toxicology Program (NTP) animal study on cancer risks from cell phone radiation. The project is expected to be approved and get underway late next year.

Though collaborating on a common experimental design, each country will carry out its own exposures with animals from the same breeder. If the designs are similar enough, the two sets of data will be combined in a joint analysis.

“We have been discussing this issue in Japan,” said Masao Taki of the Department of Electrical and Electronic Engineering at Tokyo Metropolitan University, who was a member of ICNIRP from 1996 to 2008.

September 12, 2018

“Critique of the ICNIRP Note of September 4, 2018, Regarding Recent Animal Carcinogenesis Studies,” Ron Melnick, September 12, 2018.

Ron Melnick, formerly with NTP, spells out 15 “extensive and misleading” statements made by ICNIRP on the NTP and Ramazzini cell phone–animal studies. Also today, Ramazzini’s Fiorella Belpoggi posted her comments. See also Melnick’s commentary on the NTP study posted (...

September 4, 2018

ICNIRP Finds NTP & Ramazzini RF–Animal Studies Unconvincing

The International Commission on Non-Ionizing Radiation Protection (ICNIRP) has determined that the two recent animal studies pointing to a cancer risk from cell phone radiation are not convincing and should not be used to revise current exposure standards.

In a “note” published today, the 12-member group states that the studies by the National Toxicology Program (NTP) and the...

August 29, 2018

“Clear Evidence of Cell Phone RF Radiation Cancer Risk,” IEEE Microwave Magazine, Sept/Oct 2018.

Jim Lin,12-yr former member of ICNIRP (& editor-in-chief of Bioelectomagnetics), writes: “Perhaps the time has come to judiciously reassess, revise & update [the ICNIRP] guidelines” so that they protect against long-term RF exposures. As of now they only address acute effects.

March 22, 2018

Italian RF–Animal Study:“Consistent with” and “Reinforces” U.S. NTP Cancer Finding

Partial results of the Ramazzini Institute’s RF–animal study, which show a statistically significant increase in tumors in the hearts of male rats exposed to GSM radiation, were officially released today. They appear in Environmental Research, a peer-reviewed journal.

As we reported last month, the Ramazzini finding of Schwann cell tumors —called schwannomas— in the rat hearts is consistent with a similar finding by the U.S. National Toxicology Program (NTP) in a $25 million RF project.

In an interview with Microwave News, Fiorella Belpoggi, the senior author of the new paper and the director of the Ramazzini Institute’s Research Center in Bologna, Italy, offered her views on the new results, the parallels with those of the NTP and the implications for IARC’s designation of the cancer risk of RF radiation.

February 20, 2018

“More Than a Coincidence”

It’s happened again.

A second large study has found tumors in the Schwann cells —schwannomas— in the hearts of male rats exposed to cell phone radiation.

The new finding comes from the Ramazzini Institute in Bologna, Italy.

The malignant schwannomas of the heart seen in the Italian study are the same as those described by the U.S. National Toxicology Program (NTP) earlier this month as the basis for their concern that cell phone radiation, both GSM and CDMA, can lead to cancer.

February 2, 2018

Cell Phone Use Is “Not a High-Risk Situation”

Here are four key takeaways from the NTP press conference held this afternoon, soon after the release of its two cell phone reports [these are no longer available]:

1. NTP’s bottom line on cell phone use: “This is not a high-risk situation.”

2. RF radiation has biological effects at levels previously believed to be innocuous —they may be good or bad.

3. NTP will continue to do RF health studies. A new exposure facility is being built on the NIEHS campus, which will be smaller and more flexible than the one used...

January 29, 2018

NTP: Draft RF Cancer Reports Released

The NTP has released two reports on the cancer risks from cell phone radiation (GSM and CDMA) on rats and mice. They are available here.

The NTP press release, “High Exposure to RF Radiation Linked to Tumor Activity in Male Rats” is here.

January 29, 12018

The National Toxicology Program (NTP) has announced that the draft reports...

December 7, 2017

“Two-Year Oncogenicity Evaluations of Cell Phone RF Radiation in Sprague-Dawley Rats and B6C3F1 Mice,” Toxicology Letters, Supplement 1, October 20, 2017.

“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.” Abstract only. By IITRI’s David McCormick, who ran the exposures for the NTP–cell phone cancer study.

December 1, 2017

The Anatomy of a Rumor

”A few days ago, I received an urgent warning from a longtime contact in Sweden. An industry associate had told him that the U.S. National Toxicology Program’s study on cell phone cancer risks was screwed up and essentially “useless.”

I was tempted to disregard it as nothing more than a corporate delusion. But the original source was said to be Maria Feychting, a professor at the Karolinska Institute and the vice chair of the International Commission on Non-Ionizing Radiation Protection (ICNIRP). She had cast doubt on the landmark $25 million NTP RF–animal study in a talk presented at the Royal Swedish Academy of Sciences —the institute that awards the Nobel prizes in physics and chemistry every year.

I decided I had to check out the rumor.

September 19, 2017

“Evaluation of the Genotoxicity of Cell Phone RF Radiation in Male and Female Rats and Mice Following Subchronic Exposure.” NTP paper presented at Environmental Mutagenesis and Genomics Society annual meeting, September 9-13, 2017.

“[E]xposure to RFR has the potential to induce measurable DNA damage.” More here and here.

August 30, 2017

NTP Cancer StudyNow Due Early 2018

The National Toxicology Program (NTP) will release the “complete results” of its $25 million project on cell phone cancer risks early next year, according to a statement posted on its Web site yesterday.

“The complete results from all the rats and mice studies will be available for peer review and public comment by early 2018,” the NTP states. The animals were exposed to GSM or CDMA radiation for two years before they were sacrificed...

March 21, 2017

NTP Paper on DNA Breaks Delayed,Will Be Included in Final RF Report

The National Toxicology Program (NTP) has changed course and will not —at least for the time being— publish its findings of increased DNA breaks among rats exposed to cell phone radiation as a stand-alone paper.

The DNA study, which is part of NTP’s landmark experiment showing that RF radiation can lead to tumors in the brains and hearts of laboratory animals, will now be incorporated in NTP’s Technical Report on the $25 million project, the NTP has told Microwave News.

January 21, 2017

“The NTP Cell Phone Radiation Health Effects Project,” IEEE Microwave Magazine, January-February 2017.

By Jim Lin, a former member of ICNIRP (2004-2016) on the NTP $25 million animal study.

September 6, 2016

NTP: Cell Phone RF Breaks DNA

In May, the U.S. National Toxicology Program (NTP) announced that male rats exposed to cell phone radiation developed higher rates of cancer. Soon, the NTP will explain how that might have happened.

The same RF/microwave radiation that led male rats to develop brain tumors also caused DNA breaks in their brains. Female rats —which did not have significant elevated tumor counts— had fewer DNA breaks.

All these findings are part of the same $25 million NTP project.

The NTP results provide “strong evidence for the genotoxicity of cell phone radiation,” Ron Melnick told Microwave News.

A Report on Non-Ionizing Radiation

RF animal studies: Microwave News Article Archive (2004 - )

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