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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
3
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pubmed:dateCreated |
1994-10-18
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pubmed:abstractText |
The antiischemic effect of pirsidomine (CAS 936 (3-(cis-2,6-dimethylpiperidino)-N-(4-methoxybenzoyl))-sydnon imine), a new nitric oxide donor, was investigated in a model of myocardial infarction in the dog. Dogs were anaesthetised, thoracotomized, and the left descending coronary artery was occluded for 6 h. Pirsidomine was given intraduodenally (i.d.) at the dose of 1.0 mg/kg to 11 dogs 30 min prior to coronary occlusion. Eleven dogs received the solvent i.d. and served as controls. Pirsidomine administration completely prevented the increase in left ventricular end-diastolic pressure and pulmonary artery pressure induced by the coronary occlusion and resulted in a marked decrease in systolic and diastolic blood pressure, cardiac output, left ventricular contractility, left ventricular work and left ventricular oxygen consumption. Additionally, pirsidomine completely prevented the occlusion-induced increase in flow in the non-occluded circumflex coronary artery. Regional blood flow measurements (with radioactive microspheres) revealed that pirsidomine induced a significant reduction in blood flow in the non-ischemic areas (both epi- and endocardial) but in the course of the ischemia, significantly increased flow in the ischemic epicardial areas. Infarct-size (triphenyltetrazolium chloride technique) in control dogs was 45% of the area at risk, but only 26% (P < 0.05) in pirsidomine-treated dogs. Thus, pirsidomine had a marked antiischemic effect in this model. This was probably due to the hemodynamic unloading of the heart as well as to redistribution of blood from the non-ischemic to the ischemic areas of the myocardium.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
May
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pubmed:issn |
0014-2999
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
23
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pubmed:volume |
257
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
267-73
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:8088346-Animals,
pubmed-meshheading:8088346-Blood Pressure,
pubmed-meshheading:8088346-Cardiac Output,
pubmed-meshheading:8088346-Coronary Circulation,
pubmed-meshheading:8088346-Dogs,
pubmed-meshheading:8088346-Female,
pubmed-meshheading:8088346-Male,
pubmed-meshheading:8088346-Myocardial Contraction,
pubmed-meshheading:8088346-Myocardial Infarction,
pubmed-meshheading:8088346-Myocardial Ischemia,
pubmed-meshheading:8088346-Myocardium,
pubmed-meshheading:8088346-Oxygen Consumption,
pubmed-meshheading:8088346-Sydnones,
pubmed-meshheading:8088346-Vasodilator Agents,
pubmed-meshheading:8088346-Ventricular Function, Left
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pubmed:year |
1994
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pubmed:articleTitle |
Antiischemic effects of pirsidomine, a new nitric oxide donor.
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pubmed:affiliation |
SBU Cardiovascular Therapeutics, Cassella AG, Pharmaforschung, Frankfurt/Main, Germany.
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pubmed:publicationType |
Journal Article,
Comparative Study
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