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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
8
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pubmed:dateCreated |
1997-11-20
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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.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/1H-(1,2,4)oxadiazolo(4,3-a)quinoxali...,
http://linkedlifedata.com/resource/pubmed/chemical/Carbon Monoxide,
http://linkedlifedata.com/resource/pubmed/chemical/Enzyme Inhibitors,
http://linkedlifedata.com/resource/pubmed/chemical/Guanylate Cyclase,
http://linkedlifedata.com/resource/pubmed/chemical/Nitric Oxide,
http://linkedlifedata.com/resource/pubmed/chemical/Nitroglycerin,
http://linkedlifedata.com/resource/pubmed/chemical/Oxadiazoles,
http://linkedlifedata.com/resource/pubmed/chemical/Quinoxalines
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pubmed:status |
MEDLINE
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pubmed:month |
Aug
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pubmed:issn |
0008-4212
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
75
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
1034-7
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:9360020-Animals,
pubmed-meshheading:9360020-Aorta,
pubmed-meshheading:9360020-Carbon Monoxide,
pubmed-meshheading:9360020-Enzyme Inhibitors,
pubmed-meshheading:9360020-Guanylate Cyclase,
pubmed-meshheading:9360020-Muscle, Smooth, Vascular,
pubmed-meshheading:9360020-Muscle Relaxation,
pubmed-meshheading:9360020-Nitric Oxide,
pubmed-meshheading:9360020-Nitroglycerin,
pubmed-meshheading:9360020-Oxadiazoles,
pubmed-meshheading:9360020-Quinoxalines,
pubmed-meshheading:9360020-Rabbits
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pubmed:year |
1997
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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.
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pubmed:affiliation |
Department of Pharmacology and Toxicology, Faculty of Medicine, Queen's University, Kingston, ON, Canada.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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