Antacid and Antiulcer Properties of the Polysaccharide Chitosan in the Rat
- 1 April 1964
- journal article
- research article
- Published by Frontiers Media SA in Experimental Biology and Medicine
- Vol. 115 (4), 1108-1112
- https://doi.org/10.3181/00379727-115-29128
Abstract
Conclusions Chitosan, a polymer glucosamine obtained from the chitin of lobsters and crabs, affords a moderate, but definite protection to pylorus ligated rats against peptic ulceration of the rumin. This anti-ulcer activity has been shown to be due to a moderate capacity to bind free gastric acid and to a significant ability to act as a demulcent. Gastric demulcent activity was also observed in unligated dogs given a large dose of aspirin. Antipeptic activity was not observed with chitosan, but was with an aluminum hydroxide coprecipitate of chito-san. This latter material was almost equal to carrageenin in inhibiting proteolytic activity of gastric secretions but was not as effective as the sulfated galactosan in preventing peptic ulceration. A possible explanation of the lesser antiulcer potency of chitosan-AlOH is discussed.Keywords
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