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. 2006 Jun;22(5):211-6.
doi: 10.1191/0748233706th263oa.

Melatonin Modulates 900 Mhz Microwave-Induced Lipid Peroxidation Changes in Rat Brain

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Melatonin Modulates 900 Mhz Microwave-Induced Lipid Peroxidation Changes in Rat Brain

Halis Köylü et al. Toxicol Ind Health. .

Erratum in

  • Toxicol Ind Health. 2006 Oct;22(9):415. Nazýroglu, Mustafa [corrected to Naziroglu, Mustafa]; Delibab, Namýk [corrected to Delibas, Namik]

Abstract

Microwaves (MW) from cellular phones may affect biological systems by increasing free radicals, which may enhance lipid peroxidation levels of the brain, thus leading to oxidative damage. Melatonin is synthesized in and secreted by the pineal gland at night and exhibits anti-oxidant properties. Several studies suggest that supplementation with anti-oxidant can influence MW-induced brain damage. The present study was designed to determine the effects of MW on the brain lipid peroxidation system, and the possible protective effects of melatonin on brain degeneration induced by MW. Twenty-eight Sprague-Dawley male rats were randomly divided into three groups as follows: (1) sham-operated control group (N = 8); (2) study 900-MHz MW-exposed group (N = 8); and (3) 900-MHz MW-exposed+melatonin (100 microg/kg sc before daily MW exposure treated group) (N = 10). Cortex brain and hippocampus tissues were removed to study the levels of lipid peroxidation as malonyl dialdehyde. The levels of lipid peroxidation in the brain cortex and hippocampus increased in the MW group compared with the control group, although the levels in the hippocampus were decreased by MW+melatonin administration. The brain cortex lipid peroxidation levels were unaffected by melatonin treatment. We conclude that melatonin may prevent MW-induced oxidative changes in the hippocampus by strengthening the anti-oxidant defense system, by reducing oxidative stress products.

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