Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
1988-1-6
pubmed:abstractText
Structural analogues (e.g., Wy-46,499) of a known H2-antagonist (Wy-45,662) were found to inhibit acid secretion in the pylorus ligated rat and to block forskolin and DBcAMP-stimulated [14C]amino-pyrine (AP) uptake by rat isolated gastric mucosal cell preparations. Wy-45,662 (N-[3-[3-(1-piperidinylmethyl)phenoxy]propyl]thieno [3,4- d]isothiazol-3-amine 1, 1-dioxide), a very potent histamine H2-antagonist and antisecretory agent in the rat (ED50 approximately equal to 0.3 mg/kg), had no effect in vitro at 1 microM on forskolin-induced [14C]AP uptake while 10 nM Wy-45,662 completely suppressed histamine-stimulated [14C]AP uptake. In contrast, the N-benzylated form of Wy-45,662, Wy-46,499, dose-dependently (1 X 10(-7) -3 X 10(-6)M) suppressed forskolin-stimulated [14C]AP uptake while retaining modest antisecretory activity (ED50 approximately equal to 8 mg/kg) in vivo. Wy-46,499's modest antisecretory activity was thus attributable to inhibition via a post-histamine H2-receptor mechanism.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0378-6501
pubmed:author
pubmed:issnType
Print
pubmed:volume
13
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
297-304
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1987
pubmed:articleTitle
Structural modification of H2-receptor antagonists provide post-H2-receptor gastric antisecretory activity.
pubmed:affiliation
Wyeth Laboratories, Inc., Philadelphia, PA 19101.
pubmed:publicationType
Journal Article, In Vitro