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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
2-3
|
pubmed:dateCreated |
1993-11-9
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pubmed:abstractText |
In order to examine whether cocaine-induced behavioral sensitization is modulated by changes in serotonin receptor subtypes, we measured the binding of [3H]8-hydroxy-2-(di-n-propylamino)tetralin ([3H]8-OH-DPAT) to 5-HT1A receptors and of [3H]-ketanserin to 5-HT2 receptors in various brain regions of cocaine-treated and saline-treated (control) rats. As previously reported, repeated administration of cocaine resulted in behavioral sensitization. Stereotypic scores with the cocaine challenge were significantly (P < 0.05) higher in cocaine-pretreated animals than in the saline-pretreated group. Neither acute nor chronic cocaine administration significantly altered the number (Bmax) or the affinity (KD) of either [3H]8-OH-DPAT or [3H]ketanserin binding sites in any of the brain regions examined. These results suggest that the enhanced functional sensitivity of 5-HT1A or 5-HT2 receptor subtypes seen with cocaine may be associated with alterations in processes distal to receptors rather than changes in the number or the affinity of the receptors.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
|
pubmed:chemical | |
pubmed:status |
MEDLINE
|
pubmed:month |
Jul
|
pubmed:issn |
0014-2999
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pubmed:author | |
pubmed:issnType |
Print
|
pubmed:day |
20
|
pubmed:volume |
238
|
pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
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pubmed:pagination |
425-9
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:8405113-8-Hydroxy-2-(di-n-propylamino)tetralin,
pubmed-meshheading:8405113-Animals,
pubmed-meshheading:8405113-Binding Sites,
pubmed-meshheading:8405113-Brain,
pubmed-meshheading:8405113-Cerebral Cortex,
pubmed-meshheading:8405113-Cocaine,
pubmed-meshheading:8405113-Corpus Striatum,
pubmed-meshheading:8405113-Hippocampus,
pubmed-meshheading:8405113-Ketanserin,
pubmed-meshheading:8405113-Male,
pubmed-meshheading:8405113-Rats,
pubmed-meshheading:8405113-Rats, Sprague-Dawley,
pubmed-meshheading:8405113-Receptors, Serotonin,
pubmed-meshheading:8405113-Stereotyped Behavior
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pubmed:year |
1993
|
pubmed:articleTitle |
Repeated cocaine administration does not affect 5-HT receptor subtypes (5-HT1A, 5-HT2) in several rat brain regions.
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pubmed:affiliation |
Illinois State Psychiatric Institute, Chicago 60651.
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pubmed:publicationType |
Journal Article,
Comparative Study
|