Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:dateCreated
2005-8-11
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.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
0077-8923
pubmed:author
pubmed:issnType
Print
pubmed:volume
1047
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
122-6
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
2005
pubmed:articleTitle
Effects of Na+-Ca2+ exchange expression on excitation-contraction coupling in genetically modified mice.
pubmed:affiliation
Cardiovascular Research Laboratories, David Geffen School of Medicine at UCLA, Los Angeles, California 90095, USA. jgoldhaber@mednet.ucla.edu
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