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The effects of seawater transfer on ...

Craig, Paul Matthew.

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The effects of seawater transfer on the corticotropin-releasing factor system in rainbow trout (Oncorhynchus mykiss).

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	The effects of seawater transfer on the corticotropin-releasing factor system in rainbow trout (Oncorhynchus mykiss)./
作者:	Craig, Paul Matthew.
面頁冊數:	77 p.
附註:	Source: Masters Abstracts International, Volume: 43-06, page: 2120.
Contained By:	Masters Abstracts International43-06.
標題:	Biology, Zoology. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=MR01798
ISBN:	9780494017982

The effects of seawater transfer on the corticotropin-releasing factor system in rainbow trout (Oncorhynchus mykiss).
Craig, Paul Matthew.

The effects of seawater transfer on the corticotropin-releasing factor system in rainbow trout (Oncorhynchus mykiss). - 77 p.

Source: Masters Abstracts International, Volume: 43-06, page: 2120.

Thesis (M.Sc.)--University of Guelph (Canada), 2005.

Transfer to seawater (SW) in rainbow trout is accompanied by a period of anorexia. Although the hypothalamic-pituitary-interrenal (HPI) axis is activated in response to SW transfer and corticotropin-releasing factor (CRF)-related peptides have hypophysiotropic and anorexigenic properties, the role of the CRF system in appetite regulation during SW acclimation is not known. I examined the effects of SW transfer on food intake, plasma osmolality, HPI axis activity, and forebrain CRF and urotensin I (UI) expression. While SW transfer chronically suppressed food intake over a 2-week period, it transiently increased plasma osmolality and cortisol. Similarly, 24-h after SW transfer, hypothalamic and preoptic area CRF mRNA levels were significantly increased but recovered to pre-transfer levels within 7 days. In contrast, SW transfer elicited a delayed increase in hypothalamic UI mRNA levels and had no effect on preoptic area UI expression.

ISBN: 9780494017982Subjects--Topical Terms:

1018632
Biology, Zoology.

The effects of seawater transfer on the corticotropin-releasing factor system in rainbow trout (Oncorhynchus mykiss).
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502 $a Thesis (M.Sc.)--University of Guelph (Canada), 2005.
520 $a Transfer to seawater (SW) in rainbow trout is accompanied by a period of anorexia. Although the hypothalamic-pituitary-interrenal (HPI) axis is activated in response to SW transfer and corticotropin-releasing factor (CRF)-related peptides have hypophysiotropic and anorexigenic properties, the role of the CRF system in appetite regulation during SW acclimation is not known. I examined the effects of SW transfer on food intake, plasma osmolality, HPI axis activity, and forebrain CRF and urotensin I (UI) expression. While SW transfer chronically suppressed food intake over a 2-week period, it transiently increased plasma osmolality and cortisol. Similarly, 24-h after SW transfer, hypothalamic and preoptic area CRF mRNA levels were significantly increased but recovered to pre-transfer levels within 7 days. In contrast, SW transfer elicited a delayed increase in hypothalamic UI mRNA levels and had no effect on preoptic area UI expression.
520 $a Because the caudal neurosecretory system (CNSS) is a major source of CRF-related peptides in fish, I examined the effects of SW transfer on CNSS CRF and UI expression. (Abstract shortened by UMI.)
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