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To investigate the effects of extremely low frequency magnetic fields on brain levels of some biogenic amines in rat.
The endogenous levels of the following biogenic amines and metabolites were determined: dopamine, 3,4-dihydroxyphenylacetic acid, homovanillic acid, 3-methoxytyramine, 5-hydroxytryptamine, 5-hydroxyindoleacetic acid, and noradrenaline. Also the turnover of dopamine and 5-hydroxytryptamine was determined via an enzymatic test.
ばく露時間: repeated daily exposure, 1 h/day for 14 days
|ばく露時間||repeated daily exposure, 1 h/day for 14 days|
|ばく露装置の詳細||Animals were placed in a specially designed plastic chamber that was fitted inside the cylindrical applicator of the magnetic therapy device "Ambient 2000"|
|磁束密度||1.8 mT||effective value||測定値||-||to 3.8 mT maximum value|
It was found that 1 h daily exposure for 2 weeks to extremely low frequency magnetic fields did not alter the endogenous levels of the examined amines and metabolites. However, the rate of synthesis (turnover) of dopamine and 5-hydroxytryptamine was increased.