| Changes in hypothalamic temperature of rats after daily exposure to heat at a fixed time. | |
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MedLine Citation:
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PMID: 7892117 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Rats were subjected to an ambient temperature (Ta) of 33 degrees C for ca. 5 h during the last half of the dark phase for 5, 14 or 28 consecutive days (heat-exposed rats, HE), while control rats were kept at a constant Ta of 24 degrees C. After the heat exposure schedule, the levels of hypothalamic temperature (T(hy)) as an index of body core temperature in the HE were significantly lower than those of the controls for 2-4 h in the last half of the dark phase. The low levels of T(hy) persisted during the specific period for 1, 3 and 6 days after the end of the 5-, 14- and 28-day heat exposure schedules, respectively. These results confirm that, in rats subjected to daily heat exposure for ca. 5 h at a fixed time per day, their T(hy) falls during the period when the rats were previously exposed to heat, and suggest that the duration of the specific T(hy) change observed after completing the heat exposure schedule depends on the length of the heat exposure schedule. |
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Authors:
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S Sakurada; O Shido; N Sugimoto; K Fujikake; T Nagasaka |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Pflügers Archiv : European journal of physiology Volume: 429 ISSN: 0031-6768 ISO Abbreviation: Pflugers Arch. Publication Date: 1994 Dec |
Date Detail:
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Created Date: 1995-04-20 Completed Date: 1995-04-20 Revised Date: 2008-11-21 |
Medline Journal Info:
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Nlm Unique ID: 0154720 Medline TA: Pflugers Arch Country: GERMANY |
Other Details:
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Languages: eng Pagination: 291-3 Citation Subset: IM |
Affiliation:
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Department of Physiology, School of Medicine, Kanazawa University, Japan. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Animals Body Temperature / physiology* Circadian Rhythm* Hot Temperature Hypothalamus / physiology* Male Rats Rats, Wistar |
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