Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1980-8-15
pubmed:abstractText
The functional behaviour of membrane systems of the cardiac cell during oxygen deficiency was analyzed and the alterations were related to the metabolic state of the tissue as an index of injury. 1. The retention function of the cell membrane for proteins. With increasing energy deficiency the cardiac sarcolemma loses its ability to retain macromolecules (myoglobin, enzymes) within the cell. Close correlations exist between protein release and oxygen supply as well as ATP content of the tissue. 2. Function of isolated mitochondria after ischemia. In parallel with a strong impairment of oxidative phosphorylation (decrease of QO2, RCI values, phosphorylation rates) the Ca++-transporting activity of mitochondria is continuously depressed with decreasing myocardial ATP. 3. Function of isolated sarcoplasmic reticulum after ischemia. With breakdown of high energy phosphates during ischemia rate and extent of Ca++ binding with decrease markedly.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0300-8428
pubmed:author
pubmed:issnType
Print
pubmed:volume
75
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
97-104
pubmed:dateRevised
2003-11-14
pubmed:meshHeading
pubmed:articleTitle
Functional alterations of cardiac subcellular structures during energy deficiency in relation to the metabolic state of the heart muscle cell.
pubmed:publicationType
Journal Article