Source:http://linkedlifedata.com/resource/pubmed/id/10536272
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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1-2
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pubmed:dateCreated |
1999-12-10
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pubmed:abstractText |
Subdiaphragmatic vagotomy has been repeatedly shown to attenuate the febrile response to peripherally injected pyrogens. In the present study, we investigated whether vagotomy-induced attenuation of febrile responsiveness reflects a decreased sensitivity of the brain to central fever mediators, prostaglandin E2 (PGE2) and cholecystokinin octapeptide (CCK-8). Male rats were subjected to subdiaphragmatic vagotomy (or sham surgery) on day 0 and had a cannula implanted into the lateral cerebral ventricle on day 24. On day 30-36, the thermal responsiveness of the rats to PGE2 or CCK-8 was tested. Each animal was injected in the ventricle with either PGE2 (0, 10, 100, or 500 ng) in pyrogen-free saline with 0.5% ethanol (5 microl) or CCK-8 (0 or 1.6 microg) in artificial cerebro-spinal fluid (5 microl). While the 0-dose of either PGE2 or CCK-8 (vehicle alone) induced no thermal response, all the higher doses of either agent caused a body temperature rise preceded by tail skin vasoconstriction. The vagotomized rats did not respond differently than their sham-operated counterparts to any dose of either drug. It is concluded that subdiaphragmatic vagotomy does not change the rat's thermal responsiveness to intrabrain PGE(2) and CCK-8.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Oct
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pubmed:issn |
0006-8993
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
9
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pubmed:volume |
844
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
157-63
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:10536272-Animals,
pubmed-meshheading:10536272-Body Temperature Regulation,
pubmed-meshheading:10536272-Dinoprostone,
pubmed-meshheading:10536272-Dose-Response Relationship, Drug,
pubmed-meshheading:10536272-Fever,
pubmed-meshheading:10536272-Injections, Intraventricular,
pubmed-meshheading:10536272-Male,
pubmed-meshheading:10536272-Pyrogens,
pubmed-meshheading:10536272-Rats,
pubmed-meshheading:10536272-Rats, Wistar,
pubmed-meshheading:10536272-Sincalide,
pubmed-meshheading:10536272-Vagotomy,
pubmed-meshheading:10536272-Vagus Nerve,
pubmed-meshheading:10536272-Vasoconstriction
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pubmed:year |
1999
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pubmed:articleTitle |
Vagotomy does not affect thermal responsiveness to intrabrain prostaglandin E2 and cholecystokinin octapeptide.
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pubmed:affiliation |
Thermoregulation Laboratory, Legacy Holladay Park Medical Center, P. O. Box 3950, Portland, OR 97208-3950, USA.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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