One week of exposure to 50 Hz, vertical magnetic field does not reduce urinary 6-sulphatoxymelatonin excretion of male wistar rats

The effect of exposure to 100 or 50 μT, 50 Hz, vertical magnetic field on the excretion of 6‐sulphatoxymelatonin (6SM) in the nocturnal urine of rats was studied. Twelve male Wistar rats were kept under 12:12 hr light:dark conditions. The nocturnal urine of animals was collected in metabolic cages o...

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Published in:Bioelectromagnetics 2002-04, Vol.23 (3), p.245-248
Main Authors: Bakos, József, Nagy, Noémi, Thuróczy, György, Szabó, László D.
Format: Article
Language:English
Subjects:
Animals
extremely low frequency
Magnetics
Male
Melatonin - analogs & derivatives
Melatonin - metabolism
Melatonin - urine
melatonin metabolite
Models, Animal
nocturnal urine
Photoperiod
Rats
Rats, Wistar
Time Factors
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Summary:The effect of exposure to 100 or 50 μT, 50 Hz, vertical magnetic field on the excretion of 6‐sulphatoxymelatonin (6SM) in the nocturnal urine of rats was studied. Twelve male Wistar rats were kept under 12:12 hr light:dark conditions. The nocturnal urine of animals was collected in metabolic cages over 4 consecutive weeks. The concentration of 6SM in the rat urine was measured by 125I radioimmunoassay and normalized to creatinine concentration. After the first week of urine collection, 6 rats were exposed to 100 µT or 50 µT flux density magnetic fields (MF) for 8 hr daily for 1 week. It was found that the excretion of the primary metabolite of melatonin in the urine, 6SM, did not show statistically significant changes during and after magnetic field exposure. Bioelectromagnetics 23:245–248, 2002. © 2002 Wiley‐Liss, Inc.
ISSN:0197-8462
1521-186X
DOI:10.1002/bem.10014