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Neurotoxicité sur le système nerveux central

Abstract : The world-wide and rapidly growing use of mobile phones has raised serious concerns about the biological and health-related effects of radio frequency (RF) radiation, particularly concerns about the effects of RFs upon the nervous system. The goal of this study was to measure cytochrome oxidase (CO) levels using histochemical methods in order to evaluate regional brain metabolic activity in rat brain after exposure to a GSM 900 MHz signal for 45 min/day at a brain-averaged specifi c absorption rate (SAR) of 1.5 W/kg or for 15 min/day at a SAR of 6 W/kg over seven days. Compared to the sham and control cage groups, rats exposed to a GSM signal at 6 W/kg showed a 10 % decreased CO activity in some areas of the prefrontal and frontal cortex, the septum, the hippocampus and the posterior cortex. However, the exposure to GSM at 1.5 W/kg did not affect brain activity. Our results indicate that 6 W/kg GSM 900 MHz microwaves may affect brain metabolism and neuronal activity in rats. Due to differences in anatomy and scale factors, such an effect could be produced in man at SAR 4 times higher, i.e of 24 W/kg, well above the recommended maximum level of 2 W/kg.
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  • HAL Id : ineris-01869240, version 1



René de Seze. Neurotoxicité sur le système nerveux central. Rapport Scientifique INERIS, 2009, 2008-2009, pp.24-27. ⟨ineris-01869240⟩



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