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Effects of melatonin on Wi-Fi-induced oxidative stress in lens of rats.    
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Effects of melatonin on Wi-Fi-induced oxidative stress in lens of rats.
donderdag, 06 februari 2014 - Dossier: Algemeen


Bron: www.ncbi.nlm.nih.gov/pubmed/24492496?dopt=Abstract .
jan. 2014

Indian J Ophthalmol. 2014 Jan;62(1):12-5. doi: 10.4103/0301-4738.126166.

Effects of melatonin on Wi-Fi-induced oxidative stress in lens of rats.


Tök L, Nazıroğlu M, Doğan S, Kahya MC, Tök O.
Department of Biophysics, Medical Faculty, Süleyman Demirel University, Isparta, Turkey.

Abstract

Introduction: Melatonin has been considered a potent antioxidant that detoxifies a variety of reactive oxygen species in many pathophysiological states of eye. The present study was designed to determine the effects of Wi-Fi exposure on the lens oxidant, antioxidant redox systems, as well as the possible protective effects of melatonin on the lens injury induced by electromagnetic radiation (EMR). Materials and Methods: Thirty-two rats were used in the current study and they were randomly divided into four equal groups as follows: First and second groups were cage-control and sham-control rats. Rats in third group were exposed to Wi-Fi (2.45 GHz) for duration of 60 min/day for 30 days. As in the third group, the fourth group was treated with melatonin. The one-hour exposure to irradiation in second, third and fourth took place at noon each day. Results: Lipid peroxidation levels in the lens were slightly higher in third (Wi-Fi) group than in cage and sham control groups although their concentrations were significantly (P < 0.05) decreased by melatonin supplementation. Glutathione peroxidase (GSH-Px) activity was significantly (P < 0.05) lower in Wi-Fi group than in cage and sham control groups although GSH-Px (P < 0.01) and reduced glutathione (P < 0.05) values were significantly higher in Wi-Fi + melatonin group than in Wi-Fi group. Conclusions: There are poor oxidative toxic effects of one hour of Wi-Fi exposure on the lens in the animals. However, melatonin supplementation in the lens seems to have protective effects on the oxidant system by modulation of GSH-Px activity.


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