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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
4
|
pubmed:dateCreated |
1978-12-2
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pubmed:abstractText |
The direct effects of 100, 300 and 500 mg/100 ml ethanol on contractility of isolated, supported right ventricular papillary muscles were evaluated from 10 normal or failing cat hearts. In isometrically contracting muscles, 500 mg% ethanol decreased maximum tension in normal and failing hearts from 7.1 to 4.3 g/mm2 (P less than 0.001) and 3.4 to 2.3 (P less than 0.01) respectively, and lowered maximum tension rise from 30.4 to 20.2 g/mm2/sec (P less than 0.001) and 10.2 to 0.8 (P less than 0.01), without alterations of time to peak tension. In isotonically contracting muscles, 500 mg% ethanol reduced contractile element velocity at 0.5 g/mm2 load in normal and failing ventricles from 1.27 to 0.97 L/sec (P less than 0.001) and 0.59 to 0.39 (P less than 0.001) respectively. Thus, clinically meaningful doses of ethanol clearly, exerted dose-related negative inotropic actions on both normal and failing myocardium, thereby indicating that ethanol ingestion may exacerbate heart failure in diseased hearts.
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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 |
Jun
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pubmed:issn |
0301-4711
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
7
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
311-6
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pubmed:dateRevised |
2007-11-15
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pubmed:meshHeading |
pubmed-meshheading:689063-Animals,
pubmed-meshheading:689063-Cats,
pubmed-meshheading:689063-Depression, Chemical,
pubmed-meshheading:689063-Dose-Response Relationship, Drug,
pubmed-meshheading:689063-Ethanol,
pubmed-meshheading:689063-Heart Failure,
pubmed-meshheading:689063-Myocardial Contraction,
pubmed-meshheading:689063-Papillary Muscles
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pubmed:year |
1978
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pubmed:articleTitle |
Effects of acute ethanol on the contractile state of normal and failing cat papillary muscles.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.
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