glioma

September 21, 2021

“Mobile Phone Use and Time Trend of Brain Cancer Incidence Rate in Korea,” Bioelectromagnetics, September 20, 2021. Lots to chew over here.

June 11, 2021

IARC on RF: What’s Next?

A new analysis from the radiation group at the International Agency for Research on Cancer (IARC) calls into question the agency’s own classification of wireless radiation as a possible human carcinogen.

On May 27, IARC’s Isabelle Deltour presented the new analysis of the incidence of malignant brain tumors (glioma) in the Nordic countries —Denmark, Finland, Norway and Sweden— over the last several decades. She spoke at an online colloquium hosted by the German Federal Office of Radiation Protection, known as the BfS.

Deltour argued that the trends are mostly not “compatible” with those seen in the epidemiological studies —principally, Interphone and Lennart Hardell’s— that were the basis of IARC’s 2011 designation of RF radiation as a possible, or 2B, human carcinogen.

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.

April 9, 2018

“Clear Evidence” of Cell Phone Cancer Risk, Say Leading Pathologists

“You had it right the first time.” That was the implicit message to the National Toxicology Program (NTP) from an expert panel after a point-by-point review of NTP’s draft reports on its $25 million study of cancer risks of cell phone radiation in mice and rats.

Two years ago, with the results in hand, the NTP rushed to warn the public about the dangers of cell phones. It issued an interim report pointing to higher rates of tumors in the hearts and brains of male rats exposed to two different kinds of phone radiation. Then early this February with the release of the formal draft reports, the NTP made a U-turn, saying that using a cell phone “is not a high-risk situation.”

Now a peer review panel —11 pathologists and toxicologists from academia and industry and one statistician— has concluded that there is “clear evidence of carcinogenic activity” in those male rats.

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.

June 9, 2017

“Interactions Between Occupational Exposure to ELF Magnetic Fields and Chemicals for Brain Tumour Risk in the INTEROCC Study,” Occupational & Environmental Medicine, posted June 9, 2017.

“There was no clear evidence for interactions between occupational ELF and chemical exposures in relation to glioma or meningioma risk observed.” For more on INTEROCC, go here.

April 12, 2017

“Case-Control Study on Occupational Exposure to ELF EMFs and Glioma Risk,” American Journal of Industrial Medicine, posted online April 10, 2017.

“An increased risk in late stage (promotion/progression) of astrocytoma grade IV for occupational ELF-EMF exposure was found.” From Sweden (including Lennart Hardell). For background, see our “EMF Cancer Promotion: An Old Idea Makes a Strong Comeback.”

January 31, 2017

Changing Mix of Brain Tumors in U.K.

The incidence of glioblastoma multiforme (GBM), the most virulent and deadly type of brain cancer, is going up in the U.K., while the incidence there of other types of malignant brain tumors are declining, according to some newly published raw data.

Take a look at the two plots below and the trends are immediately apparent.

The incidence rates are not corrected for age, or any...

Take a look at the two plots below and the trends are immediately apparent.

The incidence rates are not corrected for age, or...

December 19, 2016

“Investigation of Bias Related to Differences Between Case and Control Interview Dates in Five Interphone Countries,” Annals of Epidemiology, December 2016.

This new analysis found “generally similar results” to the original Interphone study, but with “stronger positive associations among long-term users.”

June 1, 2016

Brain Tumors More Likely in Male than Female Rats

One common criticism of the new NTP cell phone cancer study is that, unlike the male rats, there was no significant increase in tumors among female rats.

For instance in its latest assault on the NTP results, the New York Times is running a comment by a pediatrics professor in Indiana, in which he states:

“It’s also odd that...

One common criticism of the new NTP cell phone cancer study is that, unlike the male rats, there was no significant increase in tumors among female rats.

For instance in its latest assault on the NTP results, the New York Times is running a comment by a pediatrics professor in Indiana, in which he states:

“It’s also odd that...

May 31, 2016

News Media Nix NTP Cancer Study“Don’t Believe the Hype”

Senior managers at the National Toxicology Program (NTP) released the preliminary results of their cell phone radiation study late last week. They were so concerned about the elevated rates of two types of cancer among exposed rats that they felt an immediate public alert was warranted. They considered it unwise to wait for the results to wend their way into a journal sometime next year. Not surprisingly, the NTP report generated worldwide media attention.

There were some startling reactions. Both the American Cancer Society (ACS) and Consumer Reports immediately shelved their long-held, wait-and-see positions. In a statement issued soon after the NTP’s press conference, Otis Brawley, ACS’ chief medical officer, called the NTP report “good science.” Consumer Reports said that the new study was “groundbreaking” and encouraged people to take simple precautions to limit their exposures.

However, much of the mainstream media saw it very differently. The Washington Post ran its story under the headline, “Do Cell Phones Cause Cancer? Don’t Believe the Hype.”

May 25, 2016

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

The cell phone cancer controversy will never be the same again.

The U.S. National Toxicology Program (NTP) is expected to issue a public announcement that cell phone radiation presents a cancer risk for humans. The move comes soon after its recently completed study showed statistically significant increases in cancer among rats that had been exposed to GSM or CDMA signals for two-years.

Discussions are currently underway among federal agencies on how to inform the public about the new findings. NTP senior managers believe that these results should be released as soon as possible because just about everyone is exposed to wireless radiation all the time and therefore everyone is potentially at risk.

December 13, 2013

Something Is Rotten in Denmark

Just over a year ago, the Danish Cancer Society (DCS) issued a news advisory with some alarming news: The number of men diagnosed with glioblastoma, the most malignant type of brain cancer, had doubled over the last ten years. Hans Skovgaard Poulsen, the head of neuro-oncology at Copenhagen University Hospital was quoted in the release as saying that this was a “frightening development.”

At the time, Christoffer Johansen, a senior researcher at the DCS told us: “I think the data is true and valid.” And Joachim Schüz, a long time collaborator of Johansen’s at the DCS who is now at the International Agency for Research on Cancer (IARC) in Lyon told Microwave News that the news was “indeed a concern.” He said that he could not explain it. (See our report here.)

After that, there was silence.

September 25, 2013

Hardell Group Reaffirms Wireless Phone Tumor Risks

Using a new data set covering 2007-2009, Lennart Hardell and his research team have reaffirmed their previous findings that long-term use of a wireless phone leads to higher rates of both malignant brain tumors and acoustic neuromas (AN), but not of meningiomas, a type of benign brain tumor. In general, they report, the longer the use, the greater the risk for AN and malignant brain tumors.

All three new papers are open access. For the malignant brain tumor paper, click here; for the AN...

All three new papers are open access. For the malignant brain tumor paper, click here; for the AN paper...

May 10, 2013

U.K. Cell Phone Study Points to Acoustic Neuroma, Not Brain Cancer

A new study from the U.K. is adding support to the still controversial proposition that long-term use of a cell phone increases the risk of developing acoustic neuroma, a tumor of the auditory nerve. No higher risk of glioma or meningioma, two types of brain cancer, was observed.

Women who used a mobile phone for more than ten years were two-and-half-times more likely to have an acoustic neuroma than those who never used a phone. The finding is statistically significant. This is the fourth epidemiological study that shows an association between long-term use of a cell phone and acoustic neuroma.

November 8, 2012

Spike in “Aggressive” Brain Cancer in Denmark

The Danish Cancer Society is reporting that the number of men diagnosed with glioblastoma —the most malignant type of brain cancer— has nearly doubled over the last ten years. Hans Skovgaard Poulsen, the head of neuro-oncology at Copenhagen University Hospital, is calling it a "frightening development...

September 2, 2008

No Link to Meningioma Seen in Northern Europe

While we were away on a summer break, another Interphone paper was released online: An analysis of the incidence of meningiomas (brain tumors) among cell phone users in five Northern European countries. It comes from the same teams that have previously reported increased risks of both glioma (another type of brain tumor) and acoustic neuroma (a tumor of the acoustic nerve) among long-term users.

A Report on Non-Ionizing Radiation

glioma: Microwave News Article Archive (2004 - )