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Predicate | Object |
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rdf:type | |
lifeskim:mentions |
umls-concept:C0013604,
umls-concept:C0018670,
umls-concept:C0024880,
umls-concept:C0027930,
umls-concept:C0030685,
umls-concept:C0034693,
umls-concept:C0034721,
umls-concept:C0042396,
umls-concept:C0127400,
umls-concept:C0205409,
umls-concept:C0391871,
umls-concept:C0680255,
umls-concept:C1283071,
umls-concept:C1363844,
umls-concept:C1512916,
umls-concept:C1549542,
umls-concept:C1963578
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pubmed:issue |
1
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pubmed:dateCreated |
1985-6-19
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pubmed:abstractText |
Intracarotid infusions of neurotensin (NT) into the isolated, perfused head of rats trigger concentration-dependent histamine and 5-hydroxytryptamine (5-HT) release from the perfused organ. The secretory event was accompanied by a concentration-dependent rise in perfusion pressure and facilitation of edema formation. The three NT effects were markedly reduced in heads derived from rats pretreated with high doses of compound 48/80 to produce mast cell depletion. The vasoconstrictor response to NT was greatly attenuated by the 5-HT receptor antagonist methysergide but unaffected by antihistaminic drugs. The results were interpreted as an indication that NT stimulates histamine and 5-HT release from mast cells of the rat perfused head. The results also suggest that the vasoconstrictor response to NT in the rat head is mediated by mast cell 5-HT. The potentiation of edema formation by NT was attributed to the action of mast cell mediators (most likely histamine and 5-HT) released by NT on microvessels.
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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 |
Mar
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pubmed:issn |
0143-4179
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
6
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
1-12
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:2581166-Animals,
pubmed-meshheading:2581166-Cromolyn Sodium,
pubmed-meshheading:2581166-Edema,
pubmed-meshheading:2581166-Head,
pubmed-meshheading:2581166-Histamine Release,
pubmed-meshheading:2581166-Infusions, Parenteral,
pubmed-meshheading:2581166-Male,
pubmed-meshheading:2581166-Mast Cells,
pubmed-meshheading:2581166-Neurotensin,
pubmed-meshheading:2581166-Perfusion,
pubmed-meshheading:2581166-Rats,
pubmed-meshheading:2581166-Rats, Inbred Strains,
pubmed-meshheading:2581166-Regional Blood Flow,
pubmed-meshheading:2581166-Serotonin,
pubmed-meshheading:2581166-Time Factors,
pubmed-meshheading:2581166-Vasoconstriction,
pubmed-meshheading:2581166-p-Methoxy-N-methylphenethylamine
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pubmed:year |
1985
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pubmed:articleTitle |
Release of mast cell mediators, vasoconstriction and edema in the isolated, perfused head of the rat following intracarotid infusion of neurotensin.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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