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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1993-12-16
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.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Sep
pubmed:issn
0014-2999
pubmed:author
pubmed:issnType
Print
pubmed:day
21
pubmed:volume
242
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
99-104
pubmed:dateRevised
2003-11-14
pubmed:meshHeading
pubmed:year
1993
pubmed:articleTitle
Effects of the novel 5-HT1A receptor antagonist, (+)-WAY 100135, on stereotyped behaviour induced by the NMDA receptor antagonist dizocilpine in rats.
pubmed:affiliation
Department of Pharmacology, Toxicology, and Pharmacy, School of Veterinary Medicine, Hannover, Germany.
pubmed:publicationType
Journal Article