Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
13
pubmed:dateCreated
1997-11-7
pubmed:abstractText
Although considered as an intestinal motor stimulant, substance P can inhibit intestinal peristalsis via stimulation of tachykinin NK1 receptors. Since NK1 receptors are present on enteric nitrergic neurones, the contribution of nitric oxide (NO) to the peristaltic motor inhibition caused by tachykinins was examined in luminally perfused segments of isolated guinea-pig ileum. Substance P (100 nM) and the NK1 receptor agonist substance P methyl ester (100 nM) increased the intraluminal pressure threshold at which peristaltic contractions were elicited. This inhibitory influence on peristalsis was prevented by the NO synthase inhibitor N(G)-nitro-L-arginine methyl ester (300 microM) in an enantiomer-selective manner. It is concluded that the substance P/NK1 receptor-mediated depression of intestinal peristalsis involves inhibitory motor pathways utilizing NO as a transmitter.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Sep
pubmed:issn
0959-4965
pubmed:author
pubmed:issnType
Print
pubmed:day
8
pubmed:volume
8
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
2857-60
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1997
pubmed:articleTitle
Involvement of nitric oxide in the substance P-induced inhibition of intestinal peristalsis.
pubmed:affiliation
Department of Experimental and Clinical Pharmacology, University of Graz, Austria.
pubmed:publicationType
Journal Article, In Vitro, Research Support, Non-U.S. Gov't