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The aim of this study was to perform a confirmation study of Salford et al. 2003 using well-controlled conditions (age and sex of animals, animal facility, restrainer habituation, exposure conditions) and thus to study the effects of radiofrequency exposure on the permeability of blood-brain barrier and on neuron degeneration.
Five groups of 16 rats were exposed to SAR values of 0, 0.14 and 2.0 W/kg. Cage control (n=8) and positive controls (subjected to cold shock to induce brain damage; n=10) were also performed.
|ばく露時間||continuous for 2 hr|
|ばく露装置の詳細||during exposure rats kept in a cylinder with a cone of Plexiglas|
|Sham exposure||A sham exposure was conducted.|
Exposure of rat brains at two SAR values induced no neuronal degeneration, permeability of blood-brain barrier or neuronal apoptosis. These data differ from those obtained by Salford et al. 2003 even at the higher SAR of 2 W/kg, i.e. ten times higher than the maximum used by the Swedish group.
The authors conclude that, under these exposure conditions, GSM-900 radiofrequency irradiation does not generate brain damage at levels up to the standard local exposure limit for the public.