Lasting consistency of cold adaptability in rats reared in cold for many generations

MORIYA, Kiyoshi; YAHATA, Takehiro; KUROSHIMA, Akihiko

Lasting consistency of cold adaptability in rats reared in cold for many generations

MORIYA, Kiyoshi; YAHATA, Takehiro; KUROSHIMA, Akihiko

The Japanese Journal of Physiology, 1985, 35(3), 423-442

Permalink : https://hdl.handle.net/2115/32837

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アクセス権	open access
URI	https://hdl.handle.net/2115/32837
タイトル	Lasting consistency of cold adaptability in rats reared in cold for many generations
著者	MORIYA, Kiyoshi ; YAHATA, Takehiro ; KUROSHIMA, Akihiko
著者名 MORIYA, Kiyoshi 森谷, 絜
著者名 YAHATA, Takehiro 八幡, 剛浩
著者名 KUROSHIMA, Akihiko 黒島, 晨汎
言語	英語
キーワード	cold-adaptation
	many generations in cold
	de-adaptation
	nonshivering thermogenesis
	cold tolerance
発行日	1985
出版者	Physiological Society of Japan
出版者	日本生理学会
収録物名	The Japanese Journal of Physiology
巻(号)	35(3)
ページ	423-442
抄録	1) Wistar rats were successively reared in cold at 5°C from 1969 to 1984. The historical changes observed in these rats were reported. 2) The cold-adapted rats reared in cold for 8 to 11 successive generations (C8-11G) were examined on their cold tolerance and nonshivering thermogenesis. C8-11G rats showed greater nonshivering thermogenesis than that of the warm-adapted control group (W), and rats exposed to cold for periods of 2 to 8 weeks (C). The nonshivering thermogenesis of C8-11G rats was diminished to a similar level to that of W and C rats by administration of a ganglion blocker, of reserpine, or of β-adrenoceptor blocker. 3) The de-adapted rats reared in warm at 25°C for 3 generations after being reared for many generations in cold (DA-3G) showed much more nonshivering thermogenesis as compared to W rats. Cold tolerance of DA-3G rats was at a level of intermediate between that of W and C rats. 4) Brown adipose tissue (BAT) weight of DA-3G rats was similar to that of C rats, while chemical composition of BAT in DA-3G rats differed from that of C and W rats.
資源タイプ	学術雑誌論文
出版タイプ	Version of Record
PISSN	0021-521X
EISSN	1881-1396
関連情報 (isIdenticalTo)	出版社版DOI https://doi.org/10.2170/jjphysiol.35.423