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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2002-7-17
pubmed:abstractText
The presence of nonischemic regional dysfunction at the adjacent region of the ischemic myocardium was demonstrated in clinical studies. Recent studies demonstrated an angiotensin II type 1 (AT1)-receptor antagonist reduced myocardial ischemia-reperfusion injury. We investigated the role of the adjacent region after reperfusion by studying the effects of AT1-receptor antagonist on myocardial function and infarct size. We investigated 12 open-chest anesthetized dogs undergoing 90 min of left anterior descending coronary artery occlusion followed by 4 h of reperfusion. Six dogs injected with an AT1-receptor antagonist (CV11974) immediately after reperfusion were compared with 6 control dogs. Percent systolic shortening (%SS) was measured by two sets of the pair sonomicrometer crystals implanted to adjacent and remote nonischemic myocardium. After 4 h of reperfusion, infarct size was measured. There were no significant differences of the %SS at baseline between two regions. In both groups, %SS at adjacent region after reperfusion was significantly decreased as compared with remote region. There were no significant differences between the two groups. Infarct size, as a percentage of the area at risk, was smaller in the AT, group than in control group (25.49+/-7.53% vs 68.58+/-26.88% P<0.01). AT1-receptor antagonist reduces infarct size. This effect is not related to the change of regional myocardial function at adjacent region after reperfusion.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
0021-5198
pubmed:author
pubmed:issnType
Print
pubmed:volume
89
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
120-5
pubmed:dateRevised
2010-11-18
pubmed:meshHeading
pubmed:year
2002
pubmed:articleTitle
Influence of angiotensin II type 1-receptor antagonist CV11974 on infarct size and adjacent regional function after ischemia-reperfusion in dogs.
pubmed:affiliation
The Second Department of Internal Medicine, Kansai Medical Univeristy, Moriguchi, Osaka, Japan. miyoshi@takii.kmu.ac.jp
pubmed:publicationType
Journal Article