Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
1983-9-9
pubmed:abstractText
Scanning electron microscopy and transmission electron microscopy were used together with tannic acid and ruthenium-red staining to examine connective tissue damage caused by acute myocardial ischemia for 20, 40 and 120 min in pig hearts. The microsphere blood flow technique revealed that blood flow was approximately 0.02 ml/min/g in inner, middle and outer thirds of the ischemic zone. After 20 min of occlusion of the left anterior descending coronary artery, the collagen network and microfilaments became irregularly arranged. After 40 min of occlusion, ruthenium-red positive glycoprotein material around the collagen fibrils and elastin began to disappear. After 2 h occlusion, the collagen fibrils and microfilaments had separated from the basement membrane. Collagen fibrils, elastic fibers, and microfilaments were broken down and were found in decreased quantities. These results have revealed that the connective tissue remains intact during the first 20 min of coronary occlusion despite zero blood flow and mild cellular changes but does undergo prominent alterations after 40 min of occlusion.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
0022-2828
pubmed:author
pubmed:issnType
Print
pubmed:volume
15
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
261-75
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1983
pubmed:articleTitle
Connective tissue changes in early ischemia of porcine myocardium: an ultrastructural study.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't