Linked Life Data

8386092

Source:http://linkedlifedata.com/resource/pubmed/id/8386092

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1993-5-14
pubmed:abstractText
The effect of thioperamide, a histamine H3 receptor antagonist, on electrically induced convulsions was studied in mice. Thioperamide significantly and dose dependently decreased the duration of each phase of convulsion and raised the electroconvulsive threshold. Its anticonvulsant effects were prevented by pretreatment with (R)-alpha-methylhistamine, a histamine H3 receptor agonist. These findings suggest that the effect of thioperamide on electrically induced convulsions is due to an increase in endogenous histamine release in the brain, an effect mediated by histamine H3 receptors. The anticonvulsant effect of thioperamide was antagonized strongly by mepyramine (or pyrilamine), a centrally acting histamine H1 receptor antagonist, but not by zolantidine, a centrally acting histamine H2 receptor antagonist. Thus, the blockade by mepyramine of the thioperamide-induced decrease in seizure susceptibility indicates that histamine released by thioperamide from the histaminergic nerve terminals interacts with the histamine H1 receptors of postsynaptic neurons. These findings support the hypothesis that the central histaminergic system is involved in the inhibition of seizures.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
0014-2999
pubmed:author
pubmed:issnType
Print
pubmed:day
30
pubmed:volume
234
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
129-33
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1993
pubmed:articleTitle
Effect of thioperamide, a histamine H3 receptor antagonist, on electrically induced convulsions in mice.
pubmed:affiliation
Department of Pharmacology, Tohoku University School of Medicine, Sendai, Japan.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't