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Effects of body mass on nicotine--induced thermogenesis and catecholamine release in male smokers

Walker J F, Kane C J

Cardiopulmonary Science Program, Bellarmine University.Louisville, KY 40205

Abstract

There was no thermic effect of nicotine or catecholamine response after smoking llow yield cigarettes in both groups, nor after smoking high yield cigarettes in the overweight group. In contrast, REE increased 7.2%, which was accompanied by an increase in plasma norepinephrine release, after smoking high yield cigarettes in the normal weight group. Controlling plasma nicotine level ablated these increases. In conclusion, body mass interacts with the thermic effect of nicrotine and neuroendocrine function in male smokers. Smoking-induced increase in the plasma nicotine level accounts for the observed responses, which are blunted in overweight smokers. This finding may have implications for potential weight gain following smoking cessation by normal weight individuals, related to lost smoking-induced thermogenesis.

Key words: Thermic effect of nicotine;Sympathetic nervous system;Body composition

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Citing This Article：

Walker J F, Kane C J. Effects of body mass on nicotine--induced thermogenesis and catecholamine release in male smokers. Acta Physiol Sin 2002; 54 (5): (in Chinese with English abstract).