Seasonal thermogenesis and body mass regulation in plateau pikas (Ochotona curzoniae)

	Seasonal thermogenesis and body mass regulation in plateau pikas (Ochotona curzoniae)
	Wang, Jian-Mei ; Zhang, Yan-Ming ; Wang, De-Hua
刊名	OECOLOGIA ; Wang Jianmei,Zhang Yanming,Wang Dehua.Seasonal thermogenesis and body mass regulation in plateau pikas (Ochotona curzoniae).OECOLOGIA,2006,149(3):373-382
	2006-09-01
英文摘要	Changes in photoperiod, ambient temperature and food availability trigger seasonal acclimatization in physiology and behavior of many animals. In the present study, seasonal adjustments in body mass and in several physiological, hormonal, and biochemical markers were examined in wild-captured plateau pikas (Ochotona curzoniae) from the Qinghai-Tibetan plateau. Our results showed that plateau pikas maintained a relatively constant body mass throughout the year and showed no seasonal changes in body fat mass and circulating levels of serum leptin. However, nonshivering thermogenesis, cytochrome c oxidase activity, and mitochondrial uncoupling protein 1 (UCP1) contents in brown adipose tissues were significantly enhanced in winter. Further, serum leptin levels were positively correlated with body mass and body fat mass while negatively correlated with UCP1 contents. Together, these data suggest that plateau pikas mainly depend on increasing thermogenic capacities, rather than decreasing body mass, to cope with cold, and leptin may play a potential role in their thermogenesis and body mass regulation.; Changes in photoperiod, ambient temperature and food availability trigger seasonal acclimatization in physiology and behavior of many animals. In the present study, seasonal adjustments in body mass and in several physiological, hormonal, and biochemical markers were examined in wild-captured plateau pikas (Ochotona curzoniae) from the Qinghai-Tibetan plateau. Our results showed that plateau pikas maintained a relatively constant body mass throughout the year and showed no seasonal changes in body fat mass and circulating levels of serum leptin. However, nonshivering thermogenesis, cytochrome c oxidase activity, and mitochondrial uncoupling protein 1 (UCP1) contents in brown adipose tissues were significantly enhanced in winter. Further, serum leptin levels were positively correlated with body mass and body fat mass while negatively correlated with UCP1 contents. Together, these data suggest that plateau pikas mainly depend on increasing thermogenic capacities, rather than decreasing body mass, to cope with cold, and leptin may play a potential role in their thermogenesis and body mass regulation.
内容类型	期刊论文
源URL	[http://ir.nwipb.ac.cn/handle/363003/1320]
专题	西北高原生物研究所_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. Seasonal thermogenesis and body mass regulation in plateau pikas (Ochotona curzoniae)[J]. OECOLOGIA, Wang Jianmei,Zhang Yanming,Wang Dehua.Seasonal thermogenesis and body mass regulation in plateau pikas (Ochotona curzoniae).OECOLOGIA,2006,149(3):373-382,2006.
APA	Wang, Jian-Mei,Zhang, Yan-Ming,&Wang, De-Hua.(2006).Seasonal thermogenesis and body mass regulation in plateau pikas (Ochotona curzoniae).OECOLOGIA.
MLA	Wang, Jian-Mei,et al."Seasonal thermogenesis and body mass regulation in plateau pikas (Ochotona curzoniae)".OECOLOGIA (2006).