Energy metabolism, thermogenesis and body mass regulation in Brandt's voles (Lasiopodomys brandtii) during cold acclimation and rewarming

Hormones and Behavior
Xue-Ying Zhang, De-Hua Wang

Abstract

Environmental cues play important roles in the regulation of an animal's physiology and behavior. The purpose of the present study was to test the hypothesis that ambient temperature was a cue to induce adjustments in body mass, energy intake and thermogenic capacity, associated with changes in serum leptin levels in Brandt's voles (Lasiopodomys brandtii). We found that Brandt's voles increased resting metabolic rate (RMR) and energy intake and kept body mass stable when exposed to the cold while showed a significant increase in body mass after rewarming. The increase in body mass after rewarming was associated with the higher energy intake compared with control. Uncoupling protein 1 (UCP1) content in brown adipose tissue (BAT) increased in the cold and reversed after rewarming. Serum leptin levels decreased in the cold while increased after rewarming, associated with the opposite changes in energy intake. Further, serum leptin levels were positively correlated with body mass and body fat mass. Together, these data supported our hypothesis that ambient temperature was a cue to induce changes in body mass and metabolism. Serum leptin, as a starvation signal in the cold and satiety signal in rewarming, was involved in the process...Continue Reading

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Citations

Feb 20, 2008·Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology·Xue-Ying ZhangDe-Hua Wang
Aug 18, 2010·Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology·Qing-Sheng Chi, De-Hua Wang
Dec 17, 2014·Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology·Mei-Fang LouDe-Hua Wang
Feb 7, 2016·Comparative Biochemistry and Physiology. Part B, Biochemistry & Molecular Biology·Man-Hong YeSheng-Mei Yang
Sep 4, 2009·American Journal of Physiology. Regulatory, Integrative and Comparative Physiology·Gang-Bin TangDe-Hua Wang
Nov 23, 2017·Personality & Social Psychology Bulletin·Janina SteinmetzJane L Risen
Jan 20, 2007·The Journal of Experimental Biology·Xue-Ying Zhang, De-Hua Wang
Jun 26, 2007·Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology·Zhi-Qiang Zhang, De-Hua Wang

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