| Food deprivation and hypothermia in desynchronized sleep-deprived rats. | |
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MedLine Citation:
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PMID: 8731330 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Reports of the effect of desynchronized sleep (DS) deprivation on body temperature (Tb) of rats in the literature are contradictory. Since conspicuous body weight loss is common in such deprivation, the effect of food plus DS deprivation on Tb of adult male Wistar rats was studied. DS deprivation carried out by the small platform method with food ad libitum (N = 8) induced hyperthermia (Tb above 38.5 degrees C) in 1 to 3 rats daily until the 8th day, when a case of discrete hypothermia (Tb below 36.9 degrees C) appeared. Food deprivation alone started to induce hypothermia on the third day in one (20%) out of five rats. Fasting imposed from the 5th to the 8th day of DS deprivation (N = 12) caused hypothermia in 33% and 67% of the animals on the second and third day of starvation, respectively. DS compensatory manifestations in 6 starved rats intensified (N = 2) or precipitated (N = 2) hypothermia after the end of sleep deprivation. It is concluded that the hypothermia is not a primary effect of DS deprivation, and this state of sleep seems to have its particular functional role which is independent of thermoregulation. |
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Authors:
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K Hoshino |
Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Brazilian journal of medical and biological research = Revista brasileira de pesquisas médicas e biológicas / Sociedade Brasileira de Biofísica ... [et al.] Volume: 29 ISSN: 0100-879X ISO Abbreviation: Braz. J. Med. Biol. Res. Publication Date: 1996 Jan |
Date Detail:
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Created Date: 1996-12-03 Completed Date: 1996-12-03 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 8112917 Medline TA: Braz J Med Biol Res Country: BRAZIL |
Other Details:
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Languages: eng Pagination: 41-6 Citation Subset: IM |
Affiliation:
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Departamento de Fisiologia, Universidade Estadual Paulista, Botucatu, Brasil. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Animals Body Temperature / physiology* Exploratory Behavior / physiology Food Deprivation / physiology* Hypothermia / etiology* Male Rats Rats, Wistar Sleep Deprivation / physiology* Time Factors |
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