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Turkije: Anti-oxidanten verminderen huidschade bij straling van mobiele telefonie.    
Ga naar overzicht berichten in: Onderzoeken

Turkije: Anti-oxidanten verminderen huidschade bij straling van mobiele telefonie.
zaterdag, 14 januari 2012 - Dossier: Algemeen


Archives of Dermatological Research. 2012 Jan 12.

Protective effects of β-glucan against oxidative injury induced by 2.45-GHz electromagnetic radiation in the skin tissue of rats.

Ceyhan AM, Akkaya VB, Güleçol SC, Ceyhan BM, Ozgüner F, Chen W.

Department of Dermatology, Medical Faculty, Suleyman Demirel University, 32200, Cunur, Isparta, Turkey, amuratceyhan@yahoo.com.

Abstract
In recent times, there is widespread use of 2.45-GHz irradiation-emitting devices in industrial, medical, military and domestic application. The aim of the present study was to investigate the effect of 2.45-GHz electromagnetic radiation (EMR) on the oxidant and antioxidant status of skin and to examine the possible protective effects of β-glucans against the oxidative injury.

Thirty-two male Wistar albino rats were randomly divided into four equal groups: control; sham exposed; EMR; and EMR + β-glucan. A 2.45-GHz EMR emitted device from the experimental exposure was applied to the EMR group and EMR + β-glucan group for 60 min daily, respectively, for 4 weeks. β-glucan was administered via gavage at a dose of 50 mg/kg/day before each exposure to radiation in the treatment group.

The activities of antioxidant enzymes, superoxide dismutase (SOD), glutathione peroxidase (GSH-Px) and catalase (CAT), as well as the concentration of malondialdehyde (MDA) were measured in tissue homogenates of the skin. Exposure to 2.45-GHz EMR caused a significant increase in MDA levels and CAT activity, while the activities of SOD and GSH-Px decreased in skin tissues. Systemic β-glucan significantly reversed the elevation of MDA levels and the reduction of SOD activities. β-glucan treatment also slightly enhanced the activity of CAT and prevented the depletion of GSH-Px activity caused by EMR, but not statistically significantly.

The present study demonstrated the role of oxidative mechanisms in EMR-induced skin tissue damages and that β-glucan could ameliorate oxidative skin injury via its antioxidant properties.

Voor het originele abstract zie:
www.ncbi.nlm.nih.gov/pubmed/22237725?dopt=Abstract .

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