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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
9
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pubmed:dateCreated |
1990-2-8
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pubmed:abstractText |
L-670,596 ((-)6,8-difluoro-9-rho-methylsulfonyl benzyl-1,2,3,4- tetrahydrocarbazol-1-yl-acetic acid) has been shown to be a potent receptor antagonist as evidenced by the inhibition of the binding of 125I-labeled PTA-OH to human platelets (IC50, 5.5 x 10(-9) M), inhibition of U-44069 induced aggregation of human platelet rich plasma (IC50, 1.1 x 10(-7) M), and competitive inhibition of contractions of the guinea pig tracheal chain induced by U-44069 (pA2,9.0). The compound was also active in vivo as shown by inhibition of arachidonic acid and U-44069 induced bronchoconstriction in the guinea pig (ED50 values, 0.04 and 0.03 mg/kg i.v., respectively), U44069 induced renal vasoconstriction in the pig (ED50, 0.02 mg/kg i.v.), and inhibition of ex vivo aggregation of rhesus monkey platelets to U-44069 (active 1-5 mg/kg p.o.). The selectivity of the compound was indicated by the failure to inhibit, first, ADP-induced human or primate platelet aggregation and, second, bronchoconstriction in the guinea pig in vivo and contraction of the guinea pig tracheal chain in vitro to a variety of agonists. It is concluded that L-670,596 is a potent, selective, orally active thromboxane A2/prostaglandin endoperoxide receptor antagonist.
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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/Carbazoles,
http://linkedlifedata.com/resource/pubmed/chemical/L 670596,
http://linkedlifedata.com/resource/pubmed/chemical/Platelet Aggregation Inhibitors,
http://linkedlifedata.com/resource/pubmed/chemical/Prostaglandin Endoperoxides,
http://linkedlifedata.com/resource/pubmed/chemical/Receptors, Prostaglandin,
http://linkedlifedata.com/resource/pubmed/chemical/Thromboxanes
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pubmed:status |
MEDLINE
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pubmed:month |
Sep
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pubmed:issn |
0008-4212
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
67
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pubmed:owner |
NLM
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pubmed:authorsComplete |
N
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pubmed:pagination |
989-93
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:2598135-Anesthesia,
pubmed-meshheading:2598135-Animals,
pubmed-meshheading:2598135-Blood Platelets,
pubmed-meshheading:2598135-Bronchi,
pubmed-meshheading:2598135-Carbazoles,
pubmed-meshheading:2598135-Guinea Pigs,
pubmed-meshheading:2598135-Humans,
pubmed-meshheading:2598135-Macaca mulatta,
pubmed-meshheading:2598135-Muscle, Smooth,
pubmed-meshheading:2598135-Neutrophils,
pubmed-meshheading:2598135-Platelet Aggregation,
pubmed-meshheading:2598135-Platelet Aggregation Inhibitors,
pubmed-meshheading:2598135-Prostaglandin Endoperoxides,
pubmed-meshheading:2598135-Receptors, Prostaglandin,
pubmed-meshheading:2598135-Renal Circulation,
pubmed-meshheading:2598135-Swine,
pubmed-meshheading:2598135-Thromboxanes,
pubmed-meshheading:2598135-Trachea
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pubmed:year |
1989
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pubmed:articleTitle |
The pharmacology of L-670,596, a potent and selective thromboxane/prostaglandin endoperoxide receptor antagonist.
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pubmed:affiliation |
Department of Pharmacology, Merck Frosst Centre for Therapeutic Research, Pointe Claire, Canada.
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pubmed:publicationType |
Journal Article,
In Vitro
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