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Helicobacter pylori lipopolysaccharide stimulates gastric mucosal pepsinogen secretion
G O Young1, N Stemmet, A Lastovica
1Gastrointestinal Clinic, Department of Medicine, University of Cape Town, South Africa.
Alimentary Pharmacology & Therapeutics
|April 1, 1992
Abstract:
The effect of Helicobacter pylori lipopolysaccharide on guinea pig gastric mucosal pepsinogen secretion has been examined using an Ussing chamber technique. Luminal addition of H. pylori lipopolysaccharide resulted in a fifty-fold stimulation of pepsinogen secretion compared to a twelve-fold increase with E. coli lipopolysaccharide. Electron microscopy showed marked degranulation of zymogen granules but no evidence of chief cell disruption.