1.   Triebling et al have recently claimed that ammonia production does play a pathogenic role in the development of H pylori related gastritis in man.

2.   Significantly decreased antral total peptic activity was found in patients with H pylori positive gastritis compared with control, and H pylori negative gastritis.

3.   Secondly, gastrin concentrations could be increased through local inflammation as gastrin concentrations are also increased in patients with non- H pylori induced gastritis.

4.   Secretion is impaired in Helicobacter pylori associated chronic gastritis.

5.   This secretion fails with the onset of Helicobacter pylori acute gastritis and remains impaired in H pylori associated chronic gastritis.

6.   H pylori positive gastritis, and the combination of active duodenitis and gastric metaplasia were independent predictors of duodenal ulceration.