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
	2006-09-01
卷号	149 期号:3 页码:373-382
关键词	basal metabolic rate nonshivering thermogenesis cytochrome c oxidase leptin plateau pika (Ochotona curzonia)
合作状况	其它
中文摘要	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.
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.
学科主题	生物科学
WOS标题词	science & technology ; life sciences & biomedicine
类目[WOS]	ecology
研究领域[WOS]	environmental sciences & ecology
关键词[WOS]	brown adipose-tissue ; non-shivering thermogenesis ; voles microtus-oeconomus ; nonshivering thermogenesis ; djungarian hamster ; brandts voles ; dicrostonyx-groenlandicus ; uncoupling proteins ; energy-expenditure ; winter survival
收录类别	SCI
语种	英语
WOS记录号	WOS:000240104600001
公开日期	2009-12-08
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
作者单位	1.Chinese Acad Sci, Inst Zool, Beijing 100080, Peoples R China 2.Chinese Acad Sci, NW Plateau Inst Biol, Xining 810001, Qinghai, Peoples R China 3.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China
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,2006,149(3):373-382.
APA	Wang, Jian-Mei,Zhang, Yan-Ming,&Wang, De-Hua.(2006).Seasonal thermogenesis and body mass regulation in plateau pikas (Ochotona curzoniae).oecologia,149(3),373-382.
MLA	Wang, Jian-Mei,et al."Seasonal thermogenesis and body mass regulation in plateau pikas (Ochotona curzoniae)".oecologia 149.3(2006):373-382.