Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
8
pubmed:dateCreated
1997-11-20
pubmed:abstractText
Carbon monoxide (CO), a vasodilator, has been implicated as an activator of soluble guanylyl cyclase (sGC) to effect smooth muscle relaxation; however, this idea has not received universal support. The purpose of this study was to examine the effects of the sGC inhibitor 1H-[1,2,4]oxadiazolo[4,3-alpha]quinoxalin-1-one (ODQ) on relaxation of rabbit aortic rings (RARs) induced by CO. Administration of 10 microM ODQ completely abolished relaxation of RARs by CO (30 microM), whereas only a partial attenuation of NO-induced relaxation was achieved by the same concentration of ODQ. The results of this study suggest that CO-mediated relaxation of RARs is mediated by sGC and indicate that ODQ may serve as a useful tool in the investigation of the actions of CO. Furthermore, these observations support the idea that ODQ is less potent in inhibiting relaxations by NO, thereby implicating a component of NO-induced relaxation that is independent of sGC/cGMP.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
0008-4212
pubmed:author
pubmed:issnType
Print
pubmed:volume
75
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1034-7
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1997
pubmed:articleTitle
The soluble guanylyl cyclase inhibitor 1H-[1,2,4]oxadiazolo[4,3-alpha]quinoxalin-1-one (ODQ) inhibits relaxation of rabbit aortic rings induced by carbon monoxide, nitric oxide, and glyceryl trinitrate.
pubmed:affiliation
Department of Pharmacology and Toxicology, Faculty of Medicine, Queen's University, Kingston, ON, Canada.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't