Source:http://linkedlifedata.com/resource/pubmed/id/15464097
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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1-2
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pubmed:dateCreated |
2004-10-6
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pubmed:abstractText |
Given a limited information regarding the difference of the sensitivity of surrogate markers of drug-induced torsades de pointes, including early afterdepolarization, ectopic beats, phase 3 repolarization and dispersion of ventricular repolarization, we simultaneously analyzed them in the halothane-anesthetized canine model (n=5). A non-specific IKr channel blocker sparfloxacin, which has been known to induce torsades de pointes in animals and clinical patients, prolonged the repolarization process in a dose-related and reverse use-dependent manner. No significant change was detected in any of the proarrhythmic markers except for the backward parallel shift of phase 3 repolarization in the cardiac cycle with the QT interval prolongation, which would be the most sensitive marker in predicting the potential arrhythmogenic property of sparfloxacin in the "non-remodeled" normal heart.
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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 |
Oct
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pubmed:issn |
0014-2999
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
11
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pubmed:volume |
502
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
117-22
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:15464097-Action Potentials,
pubmed-meshheading:15464097-Animals,
pubmed-meshheading:15464097-Biological Markers,
pubmed-meshheading:15464097-Dogs,
pubmed-meshheading:15464097-Electrocardiography,
pubmed-meshheading:15464097-Female,
pubmed-meshheading:15464097-Fluoroquinolones,
pubmed-meshheading:15464097-Heart,
pubmed-meshheading:15464097-Heart Rate,
pubmed-meshheading:15464097-Torsades de Pointes
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pubmed:year |
2004
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pubmed:articleTitle |
Comparison of sensitivity of surrogate markers of drug-induced torsades de pointes in canine hearts.
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pubmed:affiliation |
New Product Research Laboratories II, Daiichi Pharmaceutical Co., Ltd. 16-13, Kita-Kasai 1-Chome, Edogawa-ku, Tokyo 134-8630, Japan.
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pubmed:publicationType |
Journal Article,
Comparative Study,
Research Support, Non-U.S. Gov't
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