A study on the aetiology of reserpine ulceration and the antiulcer action of solcoseryl in rat stomach

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Abstract
The aetiology of reserpine-induced gastric ulcer formation and the antiulcer effects of solcoseryl were studied in rats. Intraperitoneal injection of reserpine produced severe ulceration, as well as mast cell and histamine depletion, in the gastric glandular mucosa. Mepyramine and Cimetidine markedly antagonized the gastric lesions, but did not influence the reduced mast cell count; atropine pretreatment significantly inhibited both parameters. Intramuscular injection of solcoseryl lessened ulcer severity and prevented the decreased mast cell counts and histamine levels in reserpine-treated rats. However, the same dose of solcoseryl injected intraperitoneally was ineffective. Solcoseryl, irrespective of the route of administration, did not influence the gastric secretory activities of reserpine. It is concluded that resperine ulceration is both cholinergic- and histamine-mediated, and that the antiulcer effects of solcoseryl appear to be due to prevention of histamine depletion in the gastric mucosa.