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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
2
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pubmed:dateCreated |
1977-11-25
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pubmed:abstractText |
Effects of the phenothiazine analog, EN-313, on ventricular electrical activity were studied using isolated blood-superfused canine Purkinje fibers and conscious dogs with sustained ventricular arrhythmias following a 2-stage ligation of the left anterior descending coronary artery, EN-313, less than 3 mg/kg, i.v., had no significant effect on transmembrane potentials of Purkinje fibers. At 3 mg/kg, EN-313 significantly decreased maximum upstroke velocity of phase 0 depolarization and action potential duration. In conscious dogs, EN-313 (1-3 mg/kg i.v.; 10-20 mg/kg p.o.) reduced arrhythmias that occured larger than or equal to 24 h after coronary artery ligation. No excessive changes in electrocardiographic parameters were observed following EN-313. These studies demonstrate that EN-313 suppresses ventricular arrhythmias in doses which have little effect on cellular electrophysiologic properties of normal Purkinje fibers and suggest that EN-313 should be useful in treating cardiac arrhythmias arising as a result of coronary occlusion.
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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 |
Sep
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pubmed:issn |
0014-2999
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
15
|
pubmed:volume |
45
|
pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
127-39
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pubmed:dateRevised |
2007-11-15
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pubmed:meshHeading |
pubmed-meshheading:902685-Animals,
pubmed-meshheading:902685-Arrhythmias, Cardiac,
pubmed-meshheading:902685-Coronary Vessels,
pubmed-meshheading:902685-Dogs,
pubmed-meshheading:902685-Electrocardiography,
pubmed-meshheading:902685-Epinephrine,
pubmed-meshheading:902685-Female,
pubmed-meshheading:902685-Ligation,
pubmed-meshheading:902685-Male,
pubmed-meshheading:902685-Membrane Potentials,
pubmed-meshheading:902685-Morpholines,
pubmed-meshheading:902685-Myocardial Infarction,
pubmed-meshheading:902685-Phenothiazines,
pubmed-meshheading:902685-Purkinje Fibers,
pubmed-meshheading:902685-Quinidine,
pubmed-meshheading:902685-Time Factors
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pubmed:year |
1977
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pubmed:articleTitle |
Effects of the phenothiazine analog, EN-313, on ventricular arrhythmias in the dog.
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pubmed:publicationType |
Journal Article,
In Vitro,
Research Support, U.S. Gov't, P.H.S.
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