| Hypothalamic network for thermoregulatory shivering. | |
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MedLine Citation:
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PMID: 8048633 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Warming one side of a rat's preoptic area and anterior hypothalamus (POAH) suppresses shivering on both sides of the body, and the present study evaluated the extent to which signals mediating this suppression cross the midline within and below the POAH. Hind paw shivering during unilateral POAH thermal stimulation was measured for rats in which the POAH had been midsagittally transected and for rats in which one side of the hypothalamus had been coronally transected just caudal to the POAH. In midsagittally transected rats, unilateral warming on either side of the POAH suppressed shivering equally on both sides of the body. In unilaterally transected rats, POAH warming on the transected side did not affect shivering, but warming the intact side suppressed shivering equally on both sides of the body. When a unilateral transection of only the lateral part of the hypothalamus included the medial forebrain bundle, the effect was the same as that of a unilateral transection of the whole hypothalamus. These results indicate that no information controlling shivering is exchanged between the left and right POAH and that efferent signals from the POAH, descending through the medial forebrain bundle, cross the midline somewhere below the hypothalamus to innervate both sides of the body equally. |
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Authors:
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K Kanosue; Y H Zhang; M Yanase-Fujiwara; T Hosono |
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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: The American journal of physiology Volume: 267 ISSN: 0002-9513 ISO Abbreviation: Am. J. Physiol. Publication Date: 1994 Jul |
Date Detail:
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Created Date: 1994-09-01 Completed Date: 1994-09-01 Revised Date: 2008-11-21 |
Medline Journal Info:
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Nlm Unique ID: 0370511 Medline TA: Am J Physiol Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: R275-82 Citation Subset: IM |
Affiliation:
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Department of Physiology, Osaka University Medical School, Japan. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Animals Body Temperature Regulation / physiology* Brain Mapping Denervation Efferent Pathways / physiology Hindlimb Hot Temperature Hypothalamus / physiology* Hypothalamus, Anterior / physiology Male Preoptic Area / physiology Rats Rats, Wistar Shivering / physiology* |
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