and Australian Center for Electromagnetic Bioeffects Research

Australia

and Australian Center for Electromagnetic Bioeffects Research

Australia
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Court-Kowalski S.,University of Adelaide | Court-Kowalski S.,Hanson Institute Center for Neurological Diseases | Court-Kowalski S.,and Australian Center for Electromagnetic Bioeffects Research | Finnie J.W.,University of Adelaide | And 11 more authors.
Bioelectromagnetics | Year: 2015

This study was designed to determine whether long-term (2 years) brain exposure to mobile telephone radiofrequency (RF) fields produces any astrocytic activation as these glia react to a wide range of neural perturbations by astrogliosis. Using a purpose-designed exposure system at 900MHz, mice were given a single, far-field whole body exposure at a specific absorption rate of 4W/kg on five successive days per week for 104 weeks. Control mice were sham-exposed or freely mobile in a cage to control any stress caused by immobilization in the exposure module. Brains were perfusion-fixed with 4% paraformaldehyde and three coronal levels immunostained for glial fibrillary acidic protein (GFAP). These brain slices were then examined by light microscopy and the amount of this immunomarker quantified using a color deconvolution method. There was no change in astrocytic GFAP immunostaining in brains after long-term exposure to mobile telephony microwaves compared to control (sham-exposed or freely moving caged mice). It was concluded that long-term (2 years) exposure of murine brains to mobile telephone RF fields did not produce any astrocytic reaction (astrogliosis) detectable by GFAP immunostaining. © 2015 Wiley Periodicals, Inc.

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