Linked Life Data

3234479

Source:http://linkedlifedata.com/resource/pubmed/id/3234479

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
1989-4-28
pubmed:abstractText
Thiorphan and its prodrug, acetorphan, are two inhibitors of enkephalinase (EC 3.4.24.11), a membrane-bound peptidase which plays an important role in the metabolic degradation of enkephalins. Since exogenous opioids have been reported to both stimulate and inhibit gastric secretion, the effects of thiorphan and acetorphan were studied in conscious rats equipped with chronic gastric fistulas. While i.v. thiorphan had no effect, both i.c.v. thiorphan and i.v. acetorphan potently inhibited the basal gastric acid output and the acid output stimulated by pentagastrin. Conversely, neither drug affected the histamine- or methacholine-induced stimulation of acid secretion. Neither thiorphan or acetorphan had any effect on the acid secretion stimulated by a combination of pentagastrin and acetylcholine in vagotomized rats. The results strongly suggest that both drugs inhibit gastric secretion through an effect at the level of the central nervous system, which decreases the vagal drive to the stomach. However, the effects of thiorphan and acetorphan were not prevented by naloxone. This is at variance with most of the effects of these drugs reported to date, including the inhibition of gastric secretion in cats. Furthermore, these effects were observed at doses which could inhibit other enzymes apart from enkephalinase. This suggests that the antisecretory action in rats is related to the protection of some non-opioid peptide(s) from degradation. In conclusion, both peptidase inhibitors inhibit gastric secretion of the rat through a central mechanism involving unknown, non-opioid peptide(s).
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Sep
pubmed:issn
0014-2999
pubmed:author
pubmed:issnType
Print
pubmed:day
23
pubmed:volume
154
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
247-54
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1988
pubmed:articleTitle
Thiorphan and acetorphan inhibit gastric secretion by a central, non-opioid mechanism in the rat.
pubmed:affiliation
INSERM U239, Faculté de Médecine X. Bichat, Paris, France.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't