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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1
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pubmed:dateCreated |
1982-10-29
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pubmed:abstractText |
Chronic administration of haloperidol induced supersensitivity of the pre- and postsynaptic dopaminergic receptors in rat brain. The response of the presynaptic receptors was determined by an enhanced inhibitory effect of apomorphine on dopamine synthesis after gamma-butyrolactone injection. This change in the receptor function was detected both in the nigrostriatal and mesolimbic pathways. Haloperidol also increased the 3H-spiperone binding sites in striatal membranes, indicating supersensitivity of the postsynaptic receptors. Subsequent prolonged treatment with high doses of L-DOPA/carbidopa resulted in a decrease in 3H-spiperone binding sites, but had no effect on the supersensitive presynaptic receptors. It is suggested that tardive dyskinesia may be a state of both pre- and postsynaptic dopamine receptor supersensitivity and that chronic L-DOPA treatment may have a differential effect on these sites.
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pubmed:grant | |
pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/3-hydroxybenzylhydrazine,
http://linkedlifedata.com/resource/pubmed/chemical/Haloperidol,
http://linkedlifedata.com/resource/pubmed/chemical/Hydrazines,
http://linkedlifedata.com/resource/pubmed/chemical/Levodopa,
http://linkedlifedata.com/resource/pubmed/chemical/Receptors, Dopamine,
http://linkedlifedata.com/resource/pubmed/chemical/Spiperone
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pubmed:status |
MEDLINE
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pubmed:month |
Jul
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pubmed:issn |
0024-3205
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
5
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pubmed:volume |
31
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
37-44
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pubmed:dateRevised |
2007-11-14
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pubmed:meshHeading |
pubmed-meshheading:7109853-Animals,
pubmed-meshheading:7109853-Brain,
pubmed-meshheading:7109853-Haloperidol,
pubmed-meshheading:7109853-Hydrazines,
pubmed-meshheading:7109853-Levodopa,
pubmed-meshheading:7109853-Male,
pubmed-meshheading:7109853-Rats,
pubmed-meshheading:7109853-Rats, Inbred Strains,
pubmed-meshheading:7109853-Receptors, Dopamine,
pubmed-meshheading:7109853-Spiperone
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pubmed:year |
1982
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pubmed:articleTitle |
The effect of chronic L-dopa administration on supersensitive pre- and postsynaptic dopaminergic receptors in rat brain.
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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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