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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
2001-12-17
pubmed:abstractText
The aim of this work was to investigate the influence of endothelin on myocardial ischemia and reperfusion in anaesthetized dogs. Animals were submitted to left thoracotomy and 120 min of left anterior descending coronary occlusion, followed by 180 min of reperfusion. Arterial blood pressure and electrocardiogram (ECG) were recorded in order to analyze heart rate (HR)-pressure product and production of ectopic beats. Infarcted areas were identified by a macroscopic staining method and infarct size was expressed as percentage of risk zone. To inhibit the effects of endothelin in a group of animals, we administered intravenously an endothelin synthesis inhibitor (phosphoramidon) and in another group, an endothelin-1 A receptor blocker (BQ-123). Phosphoramidon decreased the HR-pressure product during reperfusion period, and both, phosphoramidon and BQ-123 decreased infarct size by 40% and the number of ventricular ectopic beats by 88% and 68%, respectively, as compared to the saline treated dogs. In conclusion, endothelin seems to play a deleterious role on the myocardium submitted to ischemia and reperfusion.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Sep
pubmed:issn
0306-3623
pubmed:author
pubmed:issnType
Print
pubmed:volume
35
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
143-7
pubmed:dateRevised
2004-1-20
pubmed:meshHeading
pubmed:year
2000
pubmed:articleTitle
Intravenous BQ-123 and phosphoramidon reduce ventricular ectopic beats and myocardial infarct size in dogs submitted to coronary occlusion and reperfusion.
pubmed:affiliation
Departamento de Fisiología, Facultad de Medicina, Universidad de Valencia, Av. Blasco Ibáñez, 17, 46010 Valencia, Spain. antonio.alberola@uv.es
pubmed:publicationType
Journal Article