Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
1997-3-7
pubmed:abstractText
OPC-18790, (+/-)6-[3-(3,4-dimethoxybenzylamino)-2- hydroxypropoxy]-2(1H)-quinolinone, is a novel positive inotropic agent with a moderate vasodilating action. We examined the vasodilating action of OPC-18790 in detail in the pentobarbital-anesthetized dogs using a colored microsphere technique for resistance vessels and a mean circulatory filling pressure method for capacitance vessels. Intravenously (i.v.) infused OPC-18790 increased the first derivative of left ventricular pressure (LVdP/dt max), cardiac output, heart rate and decreased total peripheral resistance but did not affect mean blood pressure. OPC-18790 significantly increased arterial blood flow distribution to heart and decreased vascular resistance in heart. OPC-18790 at 300 micrograms/kg i.v. and nitroglycerin at 50 micrograms/kg i.v. did not affect mean circulatory filling pressure in intact anesthetized dogs, but both compounds decreased mean circulatory filling pressure in spinally anesthetized dogs. OPC-18790 also decreased resistance to venous return but nitroglycerin did not. These results suggest that OPC-18790 has both arterial and venous vasodilating actions in addition to its positive inotropic action. These actions may produce an improvement of cardiohemodynamics in heart failure.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
0014-2999
pubmed:author
pubmed:issnType
Print
pubmed:day
17
pubmed:volume
313
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
191-200
pubmed:dateRevised
2003-11-14
pubmed:meshHeading
pubmed:year
1996
pubmed:articleTitle
OPC-18790, a novel positive inotropic agent, has both arterial and venous vascular dilating actions in the dog.
pubmed:affiliation
2nd Tokushima Institute of New Drug Research, Otsuka Pharmaceutical Co. Ltd., Japan.
pubmed:publicationType
Journal Article