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  • Title: Action of glucagon and aspirin on ionic flux, mucosal blood flow and bleeding in the fundic pouch of dogs.
    Author: Warrick MW, Lin TM.
    Journal: Res Commun Chem Pathol Pharmacol; 1977 Feb; 16(2):325-35. PubMed ID: 15305.
    Abstract:
    Into vagally denervated (Heidenhain) pouches of 4 dogs 25 ml of 0.1 M HCl was instilled and removed at 30 min intervals for 6 hours. During the 4th, 5th, and 6th 30 min periods the acid instillate contained 5 mg/ml of aspirin. Aspirin significantly increased gastric-mucosal clearance of aminopyrine (mucosal blood flow), outputs of Na+, Ca++, Mg++, hemoglobin, and plasma transferrin-Cr51 into the pouch contents, and disappearance of H+ from lumen to mucosa. Glucagon, 50 mug/kg subcutaneously was given during irrigation with aspirin and again 1 hour later. Glucagon did not significantly affect loss of acid from lumen to mucosa or the increase in Na+, K+, Ca++, and Mg++ effluxes caused by aspirin. Glucagon significantly decreased mucosal blood flow and the hemorrhage and loss of plasma protein into the instillate induced by aspirin.
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