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Updated: Jul 17, 2026

Gastric Mucosa Quantitative Polymerase Chain Reaction Analysis for Detecting Helicobacter pylori and Antibiotic Resistance
Published on: March 7, 2025
Gastric mucosal Helicobacter pylori distribution and its implications
H K Dabbous1, E A El Fekhfakh, A M Badr
1Department of Tropical Medicine, Faculty of Medicine, Ain Shams University, Cairo.
Helicobacter pylori (H. pylori) infection significantly impacts chronic gastritis severity and activity in the stomach's antrum and body. Even H. pylori-negative patients can exhibit atrophic gastritis and intestinal metaplasia.
Area of Science:
- Gastroenterology
- Pathology
- Microbiology
Background:
- Helicobacter pylori (H. pylori) is a common pathogen linked to various gastric diseases.
- Understanding the clinicopathological impact of H. pylori across different stomach regions is crucial for diagnosis and treatment.
Purpose of the Study:
- To investigate the clinicopathological features of H. pylori infection in various stomach locations.
- To correlate H. pylori colonization grades with gastritis severity and activity.
Main Methods:
- Histopathological examination of gastric biopsies from 36 patients.
- Modified Giemsa stain for H. pylori confirmation.
- Grading of chronic gastritis based on mononuclear cell infiltration, severity, and activity.
Main Results:
- H. pylori positivity was observed in 77.8% of patients.
- Significant differences in chronic gastritis severity and activity were found in the antrum and body compared to the fundus in H. pylori-positive patients.
- A significant correlation was established between H. pylori colonization grade and chronic active gastritis, as well as atrophic gastritis.
Conclusions:
- H. pylori infection significantly influences the severity and activity of chronic gastritis in the gastric antrum and body.
- Atrophic gastritis and intestinal metaplasia can occur in H. pylori-negative individuals, potentially due to a mucosa that has become inhospitable to the bacteria.
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