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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
3
|
pubmed:dateCreated |
1984-3-21
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pubmed:abstractText |
The ability of opioids to influence rectal temperature after injection into the periaqueductal grey region (PAG) of rat brain was investigated. Both morphine and beta-endorphin caused a dose-dependent increase in rectal temperature of up to 2 degrees C. By using selective ligands of the subclasses of opiate receptor such as [D-Ala2,D-Leu5]enkephalin for delta-receptors and ethylketocyclazocine, dynorphin(1-17) and dynorphin(1-8) for kappa-receptors, it was possible to show that neither the delta- nor the kappa-opiate receptor was involved in the hyperthermic response. However, [D-Ala2,MePhe4,Gly-ol5]enkephalin (DAGO), a mu-receptor ligand, did produce a dose-dependent hyperthermia. The ability of naltrexone, an opiate receptor antagonist, to reverse the hyperthermia induced by beta-endorphin and DAGO suggests that the opioid-stimulated increase in body temperature via the PAG is mediated through the mu-opiate receptor. Since the application of opioids to the PAG produces a hyperthermic response, it is possible that this brain site may have a role in the peptidergic control of body temperature.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
|
pubmed:chemical | |
pubmed:status |
MEDLINE
|
pubmed:month |
Nov
|
pubmed:issn |
0167-0115
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pubmed:author | |
pubmed:issnType |
Print
|
pubmed:volume |
7
|
pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
|
pubmed:pagination |
259-67
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:6320316-Animals,
pubmed-meshheading:6320316-Body Temperature Regulation,
pubmed-meshheading:6320316-Endorphins,
pubmed-meshheading:6320316-Male,
pubmed-meshheading:6320316-Morphine,
pubmed-meshheading:6320316-Naltrexone,
pubmed-meshheading:6320316-Periaqueductal Gray,
pubmed-meshheading:6320316-Rats,
pubmed-meshheading:6320316-Receptors, Opioid,
pubmed-meshheading:6320316-Time Factors
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pubmed:year |
1983
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pubmed:articleTitle |
Body temperature effects of opioids administered into the periaqueductal grey area of rat brain.
|
pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
|