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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
2
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pubmed:dateCreated |
1984-2-20
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pubmed:abstractText |
Exposure of rat atrial slices to 10(-5) M norepinephrine (NE) for 10 minutes increases 45Ca++ accumulation from 1.64 +/- 0.10 to 2.23 +/- 0.06 nmol/mg tissue. In the presence of leucine enkephalin (10(-8) M), NE-stimulated 45Ca++ uptake is reduced to 1.44 +/- 0.10 nmol/mg tissue. The effect of leu-enkephalin is reversed in the presence of 10(-7) M naloxone, NE-stimulated 45Ca++ uptake being increased to 2.17 +/- 0.15 nmol/mg tissue. The results support a direct interaction of leu enkephalin with beta-agonist-stimulated Ca++ flux in rat atria, and correlate with the previously reported enkephalin antagonism of NE-induced positive chronotropy in the same tissue.
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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 |
Dec
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pubmed:issn |
0006-291X
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
16
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pubmed:volume |
117
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
536-40
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:6661240-Animals,
pubmed-meshheading:6661240-Calcium,
pubmed-meshheading:6661240-Enkephalin, Leucine,
pubmed-meshheading:6661240-Female,
pubmed-meshheading:6661240-Heart,
pubmed-meshheading:6661240-Heart Atria,
pubmed-meshheading:6661240-Male,
pubmed-meshheading:6661240-Myocardium,
pubmed-meshheading:6661240-Naloxone,
pubmed-meshheading:6661240-Norepinephrine,
pubmed-meshheading:6661240-Rats,
pubmed-meshheading:6661240-Rats, Inbred Strains,
pubmed-meshheading:6661240-Time Factors
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pubmed:year |
1983
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pubmed:articleTitle |
Leucine enkephalin antagonizes norepinephrine-induced 45Ca++ accumulation in rat atria.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
|