| Body core temperature during food restriction in rats. | |
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MedLine Citation:
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PMID: 10192180 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Deep body temperature and locomotor activity of rats fed a reduced food amount (n = 9) and of starved rats (n = 9), were measured by implanted transmitters. Both groups were then refed ad libitum. The reduction in body temperature was significant for both groups, but larger in the starved rats than in the food restricted rats. There was a displacement of the circadian temperature rhythm in the starved rats. There were no significant differences in locomotor activity between groups until the start of refeeding. Rats fed reduced food amounts rapidly increased their activity, while the starved group retained a low activity for several days. Thermal conductance was reduced by 30% in both groups. This reduction in thermal conductance may explain how starving and semistarving rats are able to maintain core temperatures close to normal, even if resting metabolic rates are drastically reduced. The measured reduction in body core temperature signifies a change in the thermoregulatory 'set-point' during starvation. |
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Authors:
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T Severinsen; I C Munch |
Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Acta physiologica Scandinavica Volume: 165 ISSN: 0001-6772 ISO Abbreviation: Acta Physiol. Scand. Publication Date: 1999 Mar |
Date Detail:
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Created Date: 1999-06-21 Completed Date: 1999-06-21 Revised Date: 2003-11-14 |
Medline Journal Info:
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Nlm Unique ID: 0370362 Medline TA: Acta Physiol Scand Country: ENGLAND |
Other Details:
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Languages: eng Pagination: 299-305 Citation Subset: IM |
Affiliation:
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Division of General Physiology, University of Oslo, Norway. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Animals Basal Metabolism Body Temperature Regulation / physiology* Body Weight Circadian Rhythm / physiology Food Deprivation / physiology* Male Motor Activity / physiology Rats Rats, Wistar Starvation / physiopathology |
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