Journal of Nutritional Science and Vitaminology
Online ISSN : 1881-7742
Print ISSN : 0301-4800
ISSN-L : 0301-4800
Allylthiamindisulfide and Related Compounds Enhance Thermogenesis with Increasing Noradrenaline and Adrenaline Secretion in Rats
Yuriko OIChiaki SHISHIDOKeiko WADAHiroyuki ODAKAHitoshi IKEDAKazuo IWAI
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1999 Volume 45 Issue 5 Pages 643-653

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Abstract

The effects of allylthiamindisulfide, an allyl derivative of thiamin, and related compounds on thermogenesis were investigated by measuring noradrenaline and adrenaline secretion and the temperatures of interscapular brown adipose tissue (IBAT) and rectum in rats. In Experiment 1, the effects of the administrations of allylthiamindisulfide and related compounds on noradrenaline and adrenaline secretion were evaluated as compared to thiamin in anesthetized rats. The administration of allylthiamindisulfide significantly increased the plasma concentrations of noradrenaline and adrenaline. These increases were dose dependent, while that of thiamin was not. Four synthetic compounds related to allylthiamindisulfide also increased the plasma adrenaline and noradrena-line concentrations. In Experiment 2, the effects of allylthiamindisulfide on thermogenesis were investigated by the direct measurement of tem-peratures in the IBAT and rectum in anesthetized rats, and compared to the effects induced by thiamin and diallyldisulfide. The temperatures in the IBAT and rectum were significantly increased by the administration of allylthiamindisulfide and diallyldisulfide, while there was no significant increase as the result of thiamin administration. These results suggest that allylthiamindisulfide and related compounds enhance thermogenesis by increasing noradrenaline and adrenaline secretion in rats.

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