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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
7
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pubmed:dateCreated |
1983-11-23
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pubmed:abstractText |
A role for the enkephalins in the regulation of gastric somatostatin (SLI) secretion has been investigated in an isolated perfused rat stomach model. Both methionine- and leucine-enkephalins caused a dose-dependent inhibition of gastric inhibitory polypeptide (GIP) stimulated SLI secretion. Leu-enkephalin was one order of magnitude less potent than met-enkephalin: 50% inhibition by met-enkephalin was at 4 X 10(-9) M and with leu-enkephalin 3.5 X 10(-8) M. Naloxone (100 nM) had no effect on basal secretion but blocked the inhibitory action of met-enkephalin (1 nM or 1 microM). Vagal stimulation (7 V, 10 Hz, 5 ms) inhibited GIP-stimulated SLI release. Administration of naloxone partially reversed this inhibition, suggesting that endogenous opioids were at least partially responsible for vagally induced inhibition. A number of possible pathways by which endogenous enkephalins may modulate SLI release have been proposed.
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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 |
Jul
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pubmed:issn |
0008-4212
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
61
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
657-63
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:6137272-Animals,
pubmed-meshheading:6137272-Enkephalins,
pubmed-meshheading:6137272-Gastric Inhibitory Polypeptide,
pubmed-meshheading:6137272-Gastric Mucosa,
pubmed-meshheading:6137272-Male,
pubmed-meshheading:6137272-Naloxone,
pubmed-meshheading:6137272-Perfusion,
pubmed-meshheading:6137272-Rats,
pubmed-meshheading:6137272-Rats, Inbred Strains,
pubmed-meshheading:6137272-Somatostatin,
pubmed-meshheading:6137272-Stomach,
pubmed-meshheading:6137272-Vagus Nerve
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pubmed:year |
1983
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pubmed:articleTitle |
Enkephalinergic control of somatostatin secretion from the perfused rat stomach.
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pubmed:publicationType |
Journal Article,
In Vitro,
Research Support, Non-U.S. Gov't
|