A Report on Non-Ionizing Radiation

brain tumors: Microwave News Article Archive (2004 - )

June 15, 2007

It’s become axiomatic that wide acceptance of non-thermal effects will come from developing biomedical therapies rather than from studying potential hazards. The health effects work is mostly sponsored by those who don't want to find any. And they usually don't (cf: the USAF, EPRI, CTIA, FGF, MMF, etc.) So no one should be surprised that the latest advance comes from a small high-tech Israeli company, Novocure, which is looking for innovative ways to treat cancer. It's a breakthrough —most likely a major breakthrough.

Novocure uses weak 100-200 kHz electric fields —the company calls them tumor treating fields or TTFields— to stunt the growth of cancer cells, either by slowing down their proliferation or by killing them off entirely. The company has now demonstrated this in four different cancer cell lines. Even more impressive is that tumor growth has been curtailed in mice, rats and, in a small pilot project, ten human patients with recurrent brain tumors (glioblastoma).

January 22, 2007

An international team of researchers has found new evidence that long-term use of a mobile phone may lead to the development of a brain tumor on the side of the head the phone is used. In a study which will appear in an upcoming issue of the International Journal of Cancer, epidemiologists from five European countries report a nearly 40% increase in gliomas, a type of brain tumor, among those who had used a cell phone for ten or more years. The increase is statistically significant. In addition, there was a trend showing that the brain tumor risk increased with years of use. The new paper is posted on the journal's Web site.

March 10, 2005

The Karolinska group’s paper showing no increased risk of brain tumors among those who used a cell phone for ten or more years appears in the March 15 issue of the American Journal of Epidemiology. We first reported this result in December based on a brief announcement from Stockholm, but the published paper offers many more details.

One interesting item is the finding of a somewhat elevated risk of developing a glioma (a 60-80% increase) on the same side of the head as the phone was used. But, the Karolinska researchers also saw a lower than expected glioma risk on the opposite side of the head.

December 17, 2004

Epidemiologists at the Karolinska Institute in Stockholm have found no association between the use of cell phones and the risk of brain tumors.

“No increased risk was found for glioma or meningioma related to mobile phone use,” reports Stefan Lönn and coworkers at the Institute of Environmental Medicine. Lönn completed the study as part of his doctoral dissertation under the direction of Maria Feychting. This work is part of the Interphone study being coordinated by the International Agency for Research on Cancer (IARC) in Lyon, France.

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