title: A substantial proportion of non-ulcer dyspepsia patients have the same abnormality of acid secretion as duodenal ulcer patients.
abstract: Acid secretion in response to gastrin releasing peptide (GRP) is increased six-fold in Helicobacter pylori positive duodenal ulcer (DU) patients and threefold in H pylori positive healthy volunteers, and this fully resolves after eradication of the infection. This study was undertaken to determine whether a proportion of H pylori positive patients with non-ulcer dyspepsia (NUD) have an acid secretion disturbance similar to DU patients. Basal and GRP stimulated gastrin concentrations and acid output were examined in 25 H pylori positive NUD patients and the results compared with those of 25 H pylori positive healthy volunteers, 25 H pylori negative healthy volunteers, and 25 H pylori positive DU patients. Compared with the H pylori negative healthy volunteers, GRP stimulated gastrin was increased approximately three fold in each of the three infected groups. GRP stimulated acid secretion (median, range) was higher in the H pylori positive NUD patients (29.6 mmol/h (5.2-46.5)) (p < 0.005) than in the H pylori positive healthy volunteers (19.0 (1.0-38.3)) (p < 0.001) or H pylori negative healthy volunteers (6.3 (2.8-20.9)) (p < 0.0001). The H pylori positive NUD patients, however, had lower acid output than the DU patients (39.1 (17.9-64)) (p < 0.005). These findings are consistent with approximately 50% of the NUD patients having a similar disturbance of GRP stimulated acid secretion to DU patients.
authors.affiliation: University Department of Medicine and Therapeutics, Western Infirmary, Glasgow.
authors.forename: E
authors.initials: E
authors.lastname: el-Omar
authors.forename: I
authors.initials: I
authors.lastname: Penman
authors.forename: J E
authors.initials: JE
authors.lastname: Ardill
authors.forename: K E
authors.initials: KE
authors.lastname: McColl
mesh_terms: D000293:Adolescent; D000328:Adult; D004381:Duodenal Ulcer / Q000378:metabolism* / Q000382:microbiology; D004415:Dyspepsia / Q000378:metabolism* / Q000382:microbiology; D005260:Female; D005744:Gastric Acid / Q000378:metabolism*; D019886:Gastrin-Releasing Peptide; D005755:Gastrins / Q000378:metabolism; D005768:Gastrointestinal Hormones / Q000494:pharmacology; D016481:Helicobacter Infections / Q000378:metabolism; D016480:Helicobacter pylori; D006801:Humans; D008297:Male; D008875:Middle Aged; D010455:Peptides / Q000494:pharmacology; D013268:Stimulation, Chemical
chemical_list: D005755:Gastrins; D005768:Gastrointestinal Hormones; D010455:Peptides; D019886:Gastrin-Releasing Peptide