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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
3
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pubmed:dateCreated |
1988-10-20
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pubmed:abstractText |
Cultured astrocytes exposed to ethanol were prelabeled with [3H]inositol and the accumulation of [3H]inositol phosphates was determined following stimulation with norepinephrine (NE). Acute doses of alcohol (25-200 mM) had little effect on phosphoinositide (PI) hydrolysis. However, chronic exposure for 7 days produced significant increases in hydrolysis with ethanol concentrations as low as 50 mM. The onset of alcohol-induced increases occurred within 4 hr of exposure, reaching maximum values by Days 3 to 5. Withdrawal resulted in the return of stimulated PI hydrolysis to pre-alcohol exposure levels after 2 days. The evidence provided suggests that chronic exposure of ethanol alters the alpha-adrenergic receptor characteristics of astrocytes and/or enhances the effector pathway leading to PI hydrolysis at a site distal to the receptor.
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pubmed:grant | |
pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:issn |
0741-8329
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
5
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
183-7
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pubmed:dateRevised |
2007-11-14
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pubmed:meshHeading |
pubmed-meshheading:2843193-Animals,
pubmed-meshheading:2843193-Astrocytes,
pubmed-meshheading:2843193-Brain,
pubmed-meshheading:2843193-Cells, Cultured,
pubmed-meshheading:2843193-Dose-Response Relationship, Drug,
pubmed-meshheading:2843193-Ethanol,
pubmed-meshheading:2843193-Hydrolysis,
pubmed-meshheading:2843193-Phosphatidylinositols,
pubmed-meshheading:2843193-Rats
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pubmed:articleTitle |
Alcohol-induced alterations in phosphoinositide hydrolysis in astrocytes.
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pubmed:affiliation |
Alcohol Research Center, University of California, Los Angeles 90024-1759.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.,
Research Support, Non-U.S. Gov't
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