Hypothesis: Helicobacter pylori, urease, mucus, and gastric ulcer.

Lancet · 1990

Level V

Where this comes from

Abstract

Ammonia, released in the gastric mucosa by the action of Helicobacter pylori urease on transuded plasma urea, curtails the biosynthesis of mucus and/or causes the mucus to be disassembled at the mucosal surface. These changes facilitate colonisation by H pylori and may promote gastric ulcer formation.