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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1991-7-10
pubmed:abstractText
The administration of veratramine produced generalized tremor, myoclonus, hindlimb abduction, backward gait and Straub tail, similar to the "5-hydroxytryptamine (5-HT) syndrome", in mice. Pretreatment with metergoline, methysergide, mainserin or cyproheptadine ameliorated veratramine-induced myoclonus and tremor. For suppression of other symptoms, mianserin and cyproheptadine were effective. Metergoline improved hindlimb abduction and Straub tail, but did not inhibit backward gait. Methysergide was ineffective for the remaining symptoms. 5-Methoxy-N,N-dimethyltryptamine (5-MeODMT) enhanced all these symptoms except for Straub tail. 8-Hydroxy-2-[di-n-propylamino] tetralin hydrobromide (8-OH-DPAT) augmented tremor, hindlimb abduction and backward gait, but did not influence myoclonus and Straub tail. 5-Methoxy-3[1,2,3,6-tetrahydropyridin-4-yl] 1H-indole (RU 24969) did not modify the symptoms. Destruction of 5-HT neurons using 5,6-dihydroxytryptamine (5,6-DHT) resulted in suppression of the syndrome. The denervation supersensitivity caused by 5,6-DHT did not increase the response to veratramine. These findings indicate that part of the site of action of veratramine may be the presynaptic 5-HT neurons.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jan
pubmed:issn
0021-5198
pubmed:author
pubmed:issnType
Print
pubmed:volume
55
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
129-37
pubmed:dateRevised
2003-11-14
pubmed:meshHeading
pubmed:year
1991
pubmed:articleTitle
Veratramine-induced behavior associated with serotonergic hyperfunction in mice.
pubmed:affiliation
Department of Pharmacology, Faculty of Medicine, Kagoshima University, Japan.
pubmed:publicationType
Journal Article