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[Does Helicobacter pylori have a direct proteolytic effect in ulcerative disease?]
P Tessaro1, F Di Mario, F Vianello
1Cattedra e Divisione di Gastroenterologia, Università di Padova.
Giornale Di Clinica Medica
|March 1, 1990
Summary
Helicobacter pylori (H.p.) infection is prevalent in peptic ulcer disease and alters gastric mucus and increases peptic activity. This study investigated H.p. prevalence and its effects on gastric components in ulcer patients.
Area of Science:
- Gastroenterology
- Microbiology
- Biochemistry
Background:
- Helicobacter pylori (H.p.) exhibits proteolytic activity against gastric mucus.
- Peptic ulcer disease involves alterations in gastric mucosal components and function.
Purpose of the Study:
- To determine H.p. prevalence in duodenal and gastric ulcers.
- To assess H.p.'s impact on gastric mucus composition, peptic activity, and secretion.
Main Methods:
- Endoscopic analysis of 223 patients (99 duodenal ulcer, 58 gastric ulcer, 66 dyspeptic).
- H.p. detection via rapid urease test on antral biopsies.
- Gastric juice analysis for mucous components and peptic activity.
Main Results:
- H.p. prevalence was 89% in duodenal ulcers and 56% in gastric ulcers, associated with antral gastritis.
- H.p. infection altered gastric glycoproteins and increased peptic activity in ulcer patients.
- No significant difference in fundus-corpus peptic activity between H.p. positive and negative patients.
Conclusions:
- H.p. is highly prevalent in peptic ulcer disease.
- H.p. infection significantly influences gastric mucus and peptic activity, contributing to ulcer pathogenesis.