| Spontaneous multiple unit activity from the preoptic nucleus and changes in blood pressure in the rainbow trout Salmo gairdneri under acute experimental conditions. | |
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MedLine Citation:
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PMID: 2864173 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Multiple unit activity (MUA) from the preoptic nucleus (NPO) blood pressure and heart rate were recorded in 41 anaesthetized and curarized rainbow trout. Mayer waves were frequently observed in blood pressure recordings (83%). Rhythmic MUA from the NPO, recorded in 46% of the experimented trout, occurred preferentially during Mayer waves. The initiation of the period of MUA occurred during low pressure vasomotor tone and large vasomotor pulse pressure inhibited MUA. Sustained decrease in blood pressure induced proportional rise in MUA. These results suggest that cardiovascular inputs influence the electrical activity of neurosecretory cells within the NPO and so may modulate the neurohypophysial hormones secretion. |
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Authors:
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J C Le Mevel; D Mabin |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Comparative biochemistry and physiology. A, Comparative physiology Volume: 81 ISSN: 0300-9629 ISO Abbreviation: Comp Biochem Physiol A Comp Physiol Publication Date: 1985 |
Date Detail:
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Created Date: 1985-10-29 Completed Date: 1985-10-29 Revised Date: 2008-10-30 |
Medline Journal Info:
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Nlm Unique ID: 1276312 Medline TA: Comp Biochem Physiol A Comp Physiol Country: ENGLAND |
Other Details:
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Languages: eng Pagination: 311-8 Citation Subset: IM |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Animals Blood Pressure* Diencephalon / cytology Electric Conductivity Heart Rate Preoptic Area / physiology* Time Factors Trout |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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