brain cell phones: Microwave News Article Archive (2004 - )
From China. The third recent meta-analysis that points to a cancer risk. Here are links to all three.
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...
This new analysis found “generally similar results” to the original Interphone study, but with “stronger positive associations among long-term users.”
The latest analysis from Interphone. The same tensions continue with no clear consensus.
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...
“‘The evidence so far doesn’t prove that cell phones cause cancer, and we definitely need more and better research,’ says Michael Hansen, PhD, a senior scientist at Consumer Reports. ‘But we feel that the research does raise enough questions that taking some common-sense precautions when using your cell phone can make sense.’” This item will appear in the November issue of Consumer Reports.
“After researching this column, talking to experts and poring over dozens of scientific papers, I have realized the dangers of cellphones when used for extended periods, and as a result I have stopped holding my phone next to my head and instead use a headset.” What happened next? See our follow-up.
Some leading epidemiologists have been saying that cell phones don’t pose a brain tumor risk because cancer rates are not going up. Now comes word that Swedish cancer registry data are in disarray and official statistics may be masking a disquieting trend.
Since 2008, there has been a close to 30% increase in patients with a brain tumor of an “unknown nature” and that increase is not reflected in the national cancer registry, according to a new analysis by...
“Decreased Survival of Glioma Patients with Astrocytoma Grade IV (GBM) Associated with Long-Term Use of Mobile and Cordless Phones,” by Sweden’s Michael Carlberg and Lennart Hardell, International Journal of Environmental Research and Public Health, posted online October 16, 2014.
Those who first used wireless phones before the age of 20 have a higher brain tumor risk and a shorter survival time, Hardell told us. This paper, along with others like a recent German-Iranian paper, call for an “urgent revision of current exposure guidelines,” they write. Open access.
“Results from the present study on the use of mobile phones for ≥3 hours a day show a consistent pattern of increased risk for the mutant type of p53 gene expression in the peripheral zone of the glioblastoma, and that this increase was significantly correlated with shorter overall survival time. The risk was not higher for ipsilateral exposure.” From a German-Iranian team. Open access.
“In our study, we found an increased risk in those subjects reporting a prolonged use, making numerous calls, whose use was especially occupational and more often in urban areas…” For ≥ 986 h of life-long use, OR=2.89, 95% CI: 1.41-5.93 for gliomas; OR=2.57, 95% CI: 1.02-6.44 for meningiomas; for ≥18,360 calls, OR=2.10, 95% CI: 1.03-4.31 for gliomas. (All these elevated risks are statistically significant.) From Bordeaux University Segalen, France.
20% of Americans believe that, “Health officials know that cell phone cause cancer but are doing nothing to stop it because large corporations won’t let them.” 40% disagree, and 40% neither agree nor disagree.
“Environmental Risk Factors for Cancers of the Brain and Nervous System: The Use of Ecological Data to Generate Hypotheses,” Occupational & Environmental Medicine, May 2013, by Frank de Vocht and coworkers at U.K.'s University of Manchester.
“We show a clear association between national penetration of cellular telecommunications subscriptions and higher incidence of brain and nervous system cancers, with a latency between exposure and clinical onset of at least 11–12 years, but probably more than 20 years.”
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 paper...
“The results demonstrated the RF-EMF exposure modulated the brain neural activity not only in the closer brain region but also in the remote region and even in the contralateral brain region.” The RF exposure was a 30-minute LTE signal. From Beijing China. See also our report on the Volkow study.
The Telegraph (U.K.), May 30, 2013.