Source:http://linkedlifedata.com/resource/pubmed/id/16093490
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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:dateCreated |
2005-8-11
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pubmed:abstractText |
We have created genetically altered mice to investigate how expression of the Na(+)-Ca(2+) exchange protein alters excitation-contraction (E-C) coupling. Whereas low levels of exchanger overexpression have minimal effects on E-C coupling properties, high levels of overexpression in homozygous animals results in susceptibility to hypertrophy and heart failure, along with a significant reduction in E-C coupling gain. While global knockout of the exchanger in mice is embryonic-lethal, conditional knockout mice live to adulthood. Cardiac function is surprisingly normal in seven-week-old mice, but E-C coupling gain is apparently increased. Thus, genetic modification of exchanger expression has a major influence on E-C coupling.
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pubmed:grant | |
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 |
0077-8923
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
1047
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
122-6
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pubmed:dateRevised |
2007-11-14
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pubmed:meshHeading |
pubmed-meshheading:16093490-Animals,
pubmed-meshheading:16093490-Cardiomegaly,
pubmed-meshheading:16093490-Electrophysiology,
pubmed-meshheading:16093490-Genetic Predisposition to Disease,
pubmed-meshheading:16093490-Homozygote,
pubmed-meshheading:16093490-Mice,
pubmed-meshheading:16093490-Mice, Knockout,
pubmed-meshheading:16093490-Mice, Transgenic,
pubmed-meshheading:16093490-Myocardial Contraction,
pubmed-meshheading:16093490-Sodium-Calcium Exchanger
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pubmed:year |
2005
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pubmed:articleTitle |
Effects of Na+-Ca2+ exchange expression on excitation-contraction coupling in genetically modified mice.
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pubmed:affiliation |
Cardiovascular Research Laboratories, David Geffen School of Medicine at UCLA, Los Angeles, California 90095, USA. jgoldhaber@mednet.ucla.edu
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.,
Review,
Research Support, Non-U.S. Gov't,
Research Support, N.I.H., Extramural
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