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already in the literature on the response of the micronucleus assay to RF are
conflicting. Thus, follow-up research is necessary.(2)
FDA is currently working with government, industry, and academic groups to ensure
the proper follow-up to these industry-funded research findings. Collaboration with
the Cellular Telecommunications Industry Association (CTIA) in particular is
expected to lead to FDA providing research recommendations and scientific
oversight of new CTIA-funded research based on such recommendations.
Two other studies of interest have been reported recently in the literature:
Two groups of 18 people were exposed to simulated mobile phone signals under
laboratory conditions while they performed cognitive function tests. There were no
changes in the subjects' ability to recall words, numbers, or pictures, or in their
spatial memory, but they were able to make choices more quickly in one visual test
when they were exposed to simulated mobile phone signals. This was the only
change noted among more than 20 variables compared.(3)
In a study of 209 brain tumor cases and 425 matched controls, there was no
increased risk of brain tumors associated with mobile phone use. When tumors did
exist in certain locations, however, they were more likely to be on the side of the head
where the mobile phone was used. Because this occurred in only a small number of
cases, the increased likelihood was too small to be statistically significant.(4)
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