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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
4781
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pubmed:dateCreated |
1986-12-18
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pubmed:abstractText |
Ethanol, at pharmacologically relevant concentrations of 20 to 100 mM, stimulates gamma-aminobutyric (GABA) receptor-mediated uptake of 36Cl-labeled chlorine into isolated brain vesicles. One drug that acts at GABA-benzodiazepine receptors, the imidazobenzodiazepine Ro15-4513, has been found to be a potent antagonist of ethanol-stimulated 36Cl- uptake into brain vesicles, but it fails to antagonize either pentobarbital- or muscimol-stimulated 36Cl- uptake. Pretreatment of rats with Ro15-4513 blocks the anticonflict activity of low doses of ethanol (but not pentobarbital) as well as the behavioral intoxication observed with higher doses of ethanol. The effects of Ro15-4513 in antagonizing ethanol-stimulated 36Cl- uptake and behavior are completely blocked by benzodiazepine receptor antagonists. However, other benzodiazepine receptor inverse agonists fail to antagonize the actions of ethanol in vitro or in vivo, suggesting a novel interaction of Ro15-4513 with the GABA receptor-coupled chloride ion channel complex. The identification of a selective benzodiazepine antagonist of ethanol-stimulated 36Cl- uptake in vitro that blocks the anxiolytic and intoxicating actions of ethanol suggests that many of the neuropharmacologic actions of ethanol may be mediated via central GABA receptors.
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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/2-phenylpyrazolo(4,3-c)quinolin-3(5H...,
http://linkedlifedata.com/resource/pubmed/chemical/Azides,
http://linkedlifedata.com/resource/pubmed/chemical/Benzodiazepines,
http://linkedlifedata.com/resource/pubmed/chemical/Chlorides,
http://linkedlifedata.com/resource/pubmed/chemical/Ethanol,
http://linkedlifedata.com/resource/pubmed/chemical/Flumazenil,
http://linkedlifedata.com/resource/pubmed/chemical/Pyrazoles,
http://linkedlifedata.com/resource/pubmed/chemical/Receptors, GABA-A,
http://linkedlifedata.com/resource/pubmed/chemical/Ro 15-4513
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pubmed:status |
MEDLINE
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pubmed:month |
Dec
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pubmed:issn |
0036-8075
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
5
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pubmed:volume |
234
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
1243-7
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pubmed:dateRevised |
2008-11-21
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pubmed:meshHeading |
pubmed-meshheading:3022383-Animals,
pubmed-meshheading:3022383-Anxiety,
pubmed-meshheading:3022383-Azides,
pubmed-meshheading:3022383-Benzodiazepines,
pubmed-meshheading:3022383-Chlorides,
pubmed-meshheading:3022383-Ethanol,
pubmed-meshheading:3022383-Flumazenil,
pubmed-meshheading:3022383-Male,
pubmed-meshheading:3022383-Pyrazoles,
pubmed-meshheading:3022383-Rats,
pubmed-meshheading:3022383-Rats, Inbred Strains,
pubmed-meshheading:3022383-Receptors, GABA-A,
pubmed-meshheading:3022383-Synaptosomes
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pubmed:year |
1986
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pubmed:articleTitle |
A selective imidazobenzodiazepine antagonist of ethanol in the rat.
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pubmed:publicationType |
Journal Article
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