title: 900 MHz pulse-modulated radiofrequency radiation induces oxidative stress on heart, lung, testis and liver tissues.
abstract: Oxidative stress may affect many cellular and physiological processes including gene expression, cell growth, and cell death. In the recent study, we aimed to investigate whether 900 MHz pulse-modulated radiofrequency (RF) fields induce oxidative damage on lung, heart and liver tissues. We assessed oxidative damage by investigating lipid peroxidation (malondialdehyde, MDA), nitric oxide (NOx) and glutathione (GSH) levels which are the indicators of tissue toxicity. A total of 30 male Wistar albino rats were used in this study. Rats were divided randomly into three groups; control group (n = 10), sham group (device off, n = 10) and 900 MHz pulsed-modulated RF radiation group (n = 10). The RF rats were exposed to 900 MHz pulsed modulated RF radiation at a specific absorption rate (SAR) level of 1.20 W/kg 20 min/day for three weeks. MDA and NOx levels were increased significantly in liver, lung, testis and heart tissues of the exposed group compared to sham and control groups (p < 0.05). Conversely GSH levels were significantly lower in exposed rat tissues (p < 0.05). No significantly difference was observed between sham and control groups. Results of our study showed that pulse-modulated RF radiation causes oxidative injury in liver, lung, testis and heart tissues mediated by lipid peroxidation, increased level of NOx and suppression of antioxidant defense mechanism.
authors: Department of Biophysics, Gazi University, Faculty of Medicine, 06510 Beşevler, Ankara, Turkey. mericarda@yahoo.com
authors: Meric A
authors: MA
authors: Esmekaya
authors: Cigdem
authors: C
authors: Ozer
authors: Nesrin
authors: N
authors: Seyhan
mesh_terms: D000818:Animals; D005978:Glutathione / Q000378:metabolism / Q000528:radiation effects; D006321:Heart / Q000528:radiation effects*; D015227:Lipid Peroxidation / Q000528:radiation effects; D008099:Liver / Q000528:radiation effects*; D008168:Lung / Q000528:radiation effects*; D008297:Male; D008315:Malondialdehyde / Q000378:metabolism / Q000528:radiation effects; D008872:Microwaves / Q000009:adverse effects*; D009569:Nitric Oxide / Q000378:metabolism / Q000528:radiation effects; D018384:Oxidative Stress / Q000528:radiation effects*; D011832:Radiation Injuries / Q000209:etiology; D051381:Rats; D017208:Rats, Wistar; D013737:Testis / Q000528:radiation effects*
chemical_list: D009569:Nitric Oxide; D008315:Malondialdehyde; D005978:Glutathione