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  • Title: Zinc acexamate inhibits gastric acid and pepsinogen secretion in the rat.
    Author: Bulbena O, Esplugues JV, Escolar G, Gil L, Navarro C, Esplugues J.
    Journal: J Pharm Pharmacol; 1990 Apr; 42(4):252-6. PubMed ID: 1974292.
    Abstract:
    Pretreatment with zinc acexamate (25-100 mg kg-1 i.p.) inhibited acid and pepsinogen secretion in the pylorus-ligated rat. Zinc acexamate (5-50 mg kg-1 p.o.) also inhibited the increases in acid secretion induced by carbachol (10 micrograms kg-1) and 2-deoxy-D-glucose (200 mg kg-1) in the perfused stomach of the anaesthetized rat. A delayed antisecretory effect was observed with this drug on histamine induced responses. High concentrations of zinc acexamate (10(-5) - 10(-2) M) did not modify the in-vitro activity of pepsin. Administration of zinc acexamate resulted in an increase in the presence of pepsinogen at the mucosal level. A morphological examination of the gastric mucosa confirmed an accumulation of zymogen-containing granules in the gastric chief cells of zinc acexamate-treated rats (50 mg kg-1 p.o.). These results indicate that zinc acexamate decreases acid and pepsinogen secretion in-vivo, and this may explain its antiulcer activity.
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