Photoperiodic regulation in energy intake, thermogenesis and body mass in root voles (Microtus oeconomus)

NWIPB OpenIR

	Photoperiodic regulation in energy intake, thermogenesis and body mass in root voles (Microtus oeconomus)
	Wang, Jian-Mei ; Zhang, Yan-Ming ; Wang, De-Hua
	2006-12-01
发表期刊	COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY A-MOLECULAR & INTEGRATIVE PHYSIOLOGY ; Wang Jianmei,Zhang Yanming, Wang Dehua.Photoperiodic regulation in energy intake, thermogenesis and body mass in root voles (Microtus oeconomus).COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY A-MOLECULAR & INTEGRATIVE PHYSIOLOGY,2006,145(4):546-553
摘要	The present study was designed to examine whether photoperiod alone was effective to induce seasonal regulations in physiology in root voles (Microtus oeconomus) from the Qinghai-Tibetan plateau noted for its extreme cold environment. Root voles were randomly assigned into either long photoperiod (LD; 16L: 8D) or short photoperiod (SD; 8L: 16D) for 4 weeks at constant temperature (20 degrees C). At the end of acclimation, SD voles showed lower body mass and body fat coupled with higher energy intake than LD voles. SD greatly enhanced thermogenic capacities in root voles, as indicated by elevated basal metabolic rate (BMR), nonshivering thermogenesis (NST), mitochondrial protein content and uncoupling protein-1 (UCP1) content in brown adipose tissue (BAT). Although no variations in serum leptin levels were found between SD and LD voles, serum leptin levels were positively correlated with body mass and body fat mass, and negatively correlated with energy intake and UCP1 content in BAT, respectively. To summarize, SD alone is effective in inducing higher thermogenic capacities and energy intake coupled with lower body mass and body fat mass in root voles. Leptin is potentially involved in the photoperiod induced body mass regulation and thermogenesis in root voles. (c) 2006 Elsevier Inc. All rights reserved.; The present study was designed to examine whether photoperiod alone was effective to induce seasonal regulations in physiology in root voles (Microtus oeconomus) from the Qinghai-Tibetan plateau noted for its extreme cold environment. Root voles were randomly assigned into either long photoperiod (LD; 16L: 8D) or short photoperiod (SD; 8L: 16D) for 4 weeks at constant temperature (20 degrees C). At the end of acclimation, SD voles showed lower body mass and body fat coupled with higher energy intake than LD voles. SD greatly enhanced thermogenic capacities in root voles, as indicated by elevated basal metabolic rate (BMR), nonshivering thermogenesis (NST), mitochondrial protein content and uncoupling protein-1 (UCP1) content in brown adipose tissue (BAT). Although no variations in serum leptin levels were found between SD and LD voles, serum leptin levels were positively correlated with body mass and body fat mass, and negatively correlated with energy intake and UCP1 content in BAT, respectively. To summarize, SD alone is effective in inducing higher thermogenic capacities and energy intake coupled with lower body mass and body fat mass in root voles. Leptin is potentially involved in the photoperiod induced body mass regulation and thermogenesis in root voles. (c) 2006 Elsevier Inc. All rights reserved.
文献类型	期刊论文
条目标识符	http://210.75.249.4/handle/363003/35525
专题	中国科学院西北高原生物研究所
推荐引用方式 GB/T 7714	Wang, Jian-Mei,Zhang, Yan-Ming,Wang, De-Hua. Photoperiodic regulation in energy intake, thermogenesis and body mass in root voles (Microtus oeconomus)[J]. COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY A-MOLECULAR & INTEGRATIVE PHYSIOLOGY, Wang Jianmei,Zhang Yanming, Wang Dehua.Photoperiodic regulation in energy intake, thermogenesis and body mass in root voles (Microtus oeconomus).COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY A-MOLECULAR & INTEGRATIVE PHYSIOLOGY,2006,145(4):546-553,2006.
APA	Wang, Jian-Mei,Zhang, Yan-Ming,&Wang, De-Hua.(2006).Photoperiodic regulation in energy intake, thermogenesis and body mass in root voles (Microtus oeconomus).COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY A-MOLECULAR & INTEGRATIVE PHYSIOLOGY.
MLA	Wang, Jian-Mei,et al."Photoperiodic regulation in energy intake, thermogenesis and body mass in root voles (Microtus oeconomus)".COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY A-MOLECULAR & INTEGRATIVE PHYSIOLOGY (2006).