[Regional peptic acid activity in gastroduodenal ulcers].

The acid peptic activity in different parts of the gastroduodenal area using an original method was investigated in 25 patients with duodenal ulcer, 39 patients with gastric ulcer and 14 controls. Acidity and proteolytic activity in the gastroduodenal area were different and correlated with morphofunctional peculiarities of the mucosa. The acid peptic activity in the zone of ulceration in mediogastric and anthropyloric ulcers did not exceed that in persons without gastroduodenal pathology. The acid peptic activity in the proximal part of the duodenum was higher in the patients with duodenal ulcer than in the controls.