Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
1990-4-26
pubmed:abstractText
Adult guinea pig hippocampal membranes contain two 5-hydroxytryptamine (5-HT) receptors positively coupled with an adenylate cyclase. One is a typical 5-HT1A receptor and the second is a nonclassical 5-HT receptor that we previously proposed to call 5-HT4. Here, we show that 4-amino-5-chlor-2-methoxy-benzamide derivatives are agonists of 5-HT4 receptors in guinea pig hippocampal membranes. Their effects on the adenylate cyclase of these membranes are not additive with those of 5-HT but are additive with those of RU 24969, a typical 5-HT1 agonist. The effects of benzamides, as well as those of 5-HT, on 5-HT4 receptors are not blocked by 5-HT1, 5-HT2, or 5-HT3 antagonists except ICS 205 903, which does so with a low affinity (1 microM). The potency of benzamides (cisapride greater than BRL 24924 greater than zacopride greater than BRL 20627 greater than metoclopramide) is similar to their effect of 5-HT4 receptors positively coupled with an adenylate cyclase of fetal mouse colliculi neurons.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
0026-895X
pubmed:author
pubmed:issnType
Print
pubmed:volume
37
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
408-11
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1990
pubmed:articleTitle
Pharmacological characterization of 5-hydroxytryptamine4(5-HT4) receptors positively coupled to adenylate cyclase in adult guinea pig hippocampal membranes: effect of substituted benzamide derivatives.
pubmed:affiliation
Centre CNRS-INSERM de Pharmacologie-Endocrinologie, Montpellier, France.
pubmed:publicationType
Journal Article, In Vitro, Research Support, Non-U.S. Gov't