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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
5
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pubmed:dateCreated |
1988-1-6
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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.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
|
pubmed:issn |
0378-6501
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pubmed:author | |
pubmed:issnType |
Print
|
pubmed:volume |
13
|
pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
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pubmed:pagination |
297-304
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:2890506-Animals,
pubmed-meshheading:2890506-Gastric Acid,
pubmed-meshheading:2890506-Gastric Mucosa,
pubmed-meshheading:2890506-Histamine H2 Antagonists,
pubmed-meshheading:2890506-Phenoxypropanolamines,
pubmed-meshheading:2890506-Rats,
pubmed-meshheading:2890506-Rats, Inbred Strains,
pubmed-meshheading:2890506-Stomach Ulcer,
pubmed-meshheading:2890506-Structure-Activity Relationship,
pubmed-meshheading:2890506-Thiazoles
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pubmed:year |
1987
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pubmed:articleTitle |
Structural modification of H2-receptor antagonists provide post-H2-receptor gastric antisecretory activity.
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pubmed:affiliation |
Wyeth Laboratories, Inc., Philadelphia, PA 19101.
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pubmed:publicationType |
Journal Article,
In Vitro
|