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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1
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pubmed:dateCreated |
1993-12-16
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pubmed:abstractText |
We have recently shown that the stereotyped behaviour induced by the uncompetitive NMDA receptor antagonist dizocilpine (MK-801) can be attenuated or blocked by partial agonists at 5-HT receptors of the 5HT1A subtype, indicating that 5-HT (5-hydroxytryptamine, serotonin) is involved in the stereotyped behaviour produced by dizocilpine. In the present experiment, a selective, silent 5-HT1A receptor antagonist, (+)-WAY 100135 (N-tert-butyl 3-4(2-methoxyphenyl) piperazin 1-yl-2-phenylpropanamide dihydrochloride), was used to further study the role of 5-HT activation in dizocilpine-induced behaviours. At a dose of 10 mg/kg, (+)-WAY 100135 significantly reduced the intensity of head weaving induced by dizocilpine, but this effect was lost by increasing the dose to 20 mg/kg. At this higher dose, (+)-WAY 100135 induced marked but short-lasting increases in skeletal muscle tone and hindlimb abduction, resembling components of the '5-HT behavioural syndrome', which would explain its biphasic effects on dizocilpine induced behaviours. The data substantiate that, in addition to the well known activation of dopaminergic transmission, activation of the 5-HT system might be involved in the behavioural effects of NMDA receptor antagonists such as dizocilpine.
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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:month |
Sep
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pubmed:issn |
0014-2999
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
21
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pubmed:volume |
242
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
99-104
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pubmed:dateRevised |
2003-11-14
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pubmed:meshHeading |
pubmed-meshheading:8223942-Animals,
pubmed-meshheading:8223942-Dizocilpine Maleate,
pubmed-meshheading:8223942-Dose-Response Relationship, Drug,
pubmed-meshheading:8223942-Female,
pubmed-meshheading:8223942-Injections, Intraperitoneal,
pubmed-meshheading:8223942-Male,
pubmed-meshheading:8223942-Motor Activity,
pubmed-meshheading:8223942-Piperazines,
pubmed-meshheading:8223942-Rats,
pubmed-meshheading:8223942-Rats, Wistar,
pubmed-meshheading:8223942-Serotonin Antagonists,
pubmed-meshheading:8223942-Sex Factors,
pubmed-meshheading:8223942-Stereotyped Behavior
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pubmed:year |
1993
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pubmed:articleTitle |
Effects of the novel 5-HT1A receptor antagonist, (+)-WAY 100135, on stereotyped behaviour induced by the NMDA receptor antagonist dizocilpine in rats.
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pubmed:affiliation |
Department of Pharmacology, Toxicology, and Pharmacy, School of Veterinary Medicine, Hannover, Germany.
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pubmed:publicationType |
Journal Article
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