Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6 Pt 2
pubmed:dateCreated
1994-8-2
pubmed:abstractText
To examine the relationship between left ventricular (LV) function and intracellular calcium modulation in the presence of myocyte hypertrophy, we compared LV muscles from nine dogs with compensated LV hypertrophy (LVH) induced by chronic aortic banding with 11 controls. Mechanical properties were studied in LV muscles (control, n = 25; LVH, n = 23) stretched to the length at which maximal isometric tension developed at 30 degrees C and stimulated at 0.33 Hz; a subset of LVH muscles was loaded with the intracellular calcium indicator aequorin. In LV myocardium from dogs with compensated LVH, both the contraction duration and calcium transients were prolonged at baseline, and the response to phosphodiesterase inhibitors was impaired in keeping with findings in both human and experimental models of pressure-overload hypertrophy and failure. However, in contrast to findings in the failing myocardium, the positive inotropic response to increasing intracellular calcium was preserved in myocardium from dogs with compensated LVH.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
0002-9513
pubmed:author
pubmed:issnType
Print
pubmed:volume
266
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
H2436-42
pubmed:dateRevised
2007-11-15
pubmed:meshHeading
pubmed:year
1994
pubmed:articleTitle
Excitation-contraction coupling in isolated myocardium from dogs with compensated left ventricular hypertrophy.
pubmed:affiliation
Charles A. Dana Research Institute, Boston, Massachusetts.
pubmed:publicationType
Journal Article, In Vitro, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't