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Urinary 6‐sulphatoxymelatonin excretion is increased in rats after 24 hours of exposure to vertical 50 Hz, 100 μT magnetic field
Author(s) -
Bakos József,
Nagy Noémi,
Thuróczy György,
Szabó László D.
Publication year - 1997
Publication title -
bioelectromagnetics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.435
H-Index - 81
eISSN - 1521-186X
pISSN - 0197-8462
DOI - 10.1002/(sici)1521-186x(1997)18:2<190::aid-bem14>3.0.co;2-v
Subject(s) - excretion , melatonin , urine , endocrinology , medicine , metabolite , urinary system , bioelectromagnetics , circadian rhythm , chemistry , radioimmunoassay , magnetic field , physics , quantum mechanics
The effect of exposure to a 50 Hz, vertical magnetic field on the excretion of urinary 6‐sulphatoxymelatonin (aMT6s) of rats was studied in a self‐controlled experiment. Ten male Wistar rats were kept under 9:15 h light:dark conditions in metabolic cages. The rats were exposed to 1.0 or 100 μT flux density for 24 h. The excretion of aMT6s, which is the primary metabolite of melatonin in the urine, did not show a statistically significant decrease, as measured by 125 I radioimmunoassay, during or after magnetic field exposure of rats to either flux density. At 100 μT flux density, the increase of aMT6s excretion on the day after exposure was statistically significant (P < .02), compared with the value under exposure, but was not significant compared with the baseline values before exposure. Bioelectromagnetics 18:190–192, 1997. © 1997 Wiley‐Liss, Inc.