Acid producing function of the stomach in patients with duodenal ulcer and diabetes mellitus

: We studied gastric secretion in submaximal and maximal histamine and pentagastrin tests, computer-assisted pH-metry, chromogastroscopy and chromoduodenoscopy in 205 patients with duodenal ulcer (DU) and diabetes mellitus (DM). DU patients with DM type I had low acid gastric secretion in the stimulated phase, an excitable type of gastric secretion, continuous acid-formation of low intensity, subcompensated acid-neutralizing function of the antral portion of the stomach, normoacidic state. DU patients with DM type II had low fasting acid gastric secretion, an inhibitory type of gastric secretion, normal acid-formation, compensated acid-neutralizing function of the antral portion of the stomach, hypoacidic state.