Linked Life Data

8377843

Source:http://linkedlifedata.com/resource/pubmed/id/8377843

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1993-10-15
pubmed:abstractText
The new histamine H2 receptor agonist amthamine, [2-amino-5-(2-aminoethyl)-4-methylthiazole], was tested for its activity on gastric acid secretion in different in vivo and in vitro experimental models. Amthamine induced a dose-related increase in acid secretion both in conscious cats with a gastric fistula (ED50 = 0.069 mumol/kg/h) and in anaesthetized rats with a lumen-perfused stomach (ED50 = 11.69 mumol/kg i.v.). In this last preparation the efficacy of amthamine was significantly higher than that of histamine and dimaprit. Amthamine was an effective secretagogue also in the rat isolated gastric fundus, behaving as a full agonist (EC50 = 18.9 mumol/l). In all the experimental models amthamine was more potent than dimaprit (from 3 to 10 fold) and approximately equipotent with histamine, and its effect was competitively antagonized by the histamine H2 receptor antagonists famotidine or ranitidine. Experiments with H1 and H3 receptor antagonists indicated that amthamine is devoid of stimulatory activity at H1 and H3 receptors. The present data indicate that amthamine is a full agonist at histamine H2 receptors and, being more effective and selective than the other compounds of the family, it may represent a good alternative to the other available histamine H2 receptor agonists for the study of gastric acid secretion.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jul
pubmed:issn
0028-1298
pubmed:author
pubmed:issnType
Print
pubmed:volume
348
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
77-81
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1993
pubmed:articleTitle
The new potent and selective histamine H2 receptor agonist amthamine as a tool to study gastric secretion.
pubmed:affiliation
Institute of Pharmacology, University of Parma, Ospedale Maggiore, Italy.
pubmed:publicationType
Journal Article, In Vitro