Switch to
Predicate | Object |
---|---|
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 |
http://linkedlifedata.com/resource/pubmed/chemical/Enzyme Inhibitors,
http://linkedlifedata.com/resource/pubmed/chemical/NG-Nitroarginine Methyl Ester,
http://linkedlifedata.com/resource/pubmed/chemical/Nitric Oxide,
http://linkedlifedata.com/resource/pubmed/chemical/Receptors, Neurokinin-1,
http://linkedlifedata.com/resource/pubmed/chemical/Substance P,
http://linkedlifedata.com/resource/pubmed/chemical/substance P, methyl ester-
|
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-meshheading:9376519-Animals,
pubmed-meshheading:9376519-Enzyme Inhibitors,
pubmed-meshheading:9376519-Female,
pubmed-meshheading:9376519-Guinea Pigs,
pubmed-meshheading:9376519-Ileum,
pubmed-meshheading:9376519-Male,
pubmed-meshheading:9376519-NG-Nitroarginine Methyl Ester,
pubmed-meshheading:9376519-Nitric Oxide,
pubmed-meshheading:9376519-Peristalsis,
pubmed-meshheading:9376519-Receptors, Neurokinin-1,
pubmed-meshheading:9376519-Stereoisomerism,
pubmed-meshheading:9376519-Substance P
|
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
|