| Feeding behaviour in rats with isolated medial hypothalamus as a function of ambient temperature. | |
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MedLine Citation:
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PMID: 562937 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The experiments of mechanical isolation of medial hypothalamus from the lateral hypothalamus and the preoptic anterior hypothalamic (POAH) region in rats showed that: 1. The interruption of neural connections between POAH area and medial hypothalamus do not prevent the decrease of food intake which normally occur in a hot environment. 2. At 33 degrees C, hyperphagic rats gained more weight than sham-operated ones. 3. At 4 degrees C, rats made hyperphagic by hypothalamic isolation do not ajust their food intake for a long period and do not gain weight. 4. The excitatory pathways of the feeding center from the POAH area do not penetrate directly into the lateral hypothalamus, but rather into the medial retrochiasmatic area. 5. The temperature influences the diurnal pattern of feeding only in rats with intact or unilateral neural connections of the hypothalamic structures 6. It seems that the thermostatic mechanism, which is a potent regulator of feeding, is closely associated with the central control of thyrotropin release, and that the hypothalamic structures may be considered only as a necessary link in the nervous mechanism involved in feeding control. |
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Authors:
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V Hefco; P Rotinberg |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Journal de physiologie Volume: 73 ISSN: 0021-7948 ISO Abbreviation: J. Physiol. (Paris) Publication Date: 1977 Oct |
Date Detail:
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Created Date: 1978-01-27 Completed Date: 1978-01-27 Revised Date: 2008-11-21 |
Medline Journal Info:
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Nlm Unique ID: 9309350 Medline TA: J Physiol (Paris) Country: FRANCE |
Other Details:
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Languages: eng Pagination: 675-83 Citation Subset: IM |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Animals Body Weight Circadian Rhythm Cold Temperature Feeding Behavior / physiology* Hot Temperature Hypothalamus / physiology* Hypothalamus, Middle / physiology* Male Rats Temperature* |
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