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Updated: May 6, 2026

Gastric Mucosa Quantitative Polymerase Chain Reaction Analysis for Detecting Helicobacter pylori and Antibiotic Resistance
Published on: March 7, 2025
Population based Helicobacter pylori screening and eradication: advances versus side effects
1AM DC Rogaska, Prvomajska 29A, Rogaska Slatina, Slovenia. bojan.tepes@siol.net.
Early eradication of Helicobacter pylori (H pylori) infection can prevent gastric cancer development. National screening and H pylori eradication are recommended in high-incidence regions to reduce cancer deaths.
Area of Science:
- Gastroenterology
- Oncology
- Infectious Disease
Background:
- Gastric cancer is a leading cause of cancer death globally, with incidence projected to rise.
- Helicobacter pylori (H pylori) infection is a major risk factor, implicated in 60-80% of gastric cancers.
- Premalignant gastric lesions and cancer can be prevented by early H pylori eradication.
Purpose of the Study:
- To highlight the significance of H pylori in gastric carcinogenesis.
- To advocate for national screening and eradication strategies for H pylori.
- To outline recommended diagnostic and surveillance approaches for gastric cancer prevention.
Main Methods:
- Review of animal and intervention studies on H pylori eradication.
- Discussion of eradication therapy protocols and success monitoring.
- Emphasis on endoscopic and histologic surveillance for preneoplastic lesions using staging systems (OLGA/OLGIM, A-D).
Main Results:
- Early H pylori eradication significantly reduces the risk of premalignant gastric lesions and gastric cancer.
- Quadruple bismuth or non-bismuth therapies achieve >90% H pylori eradication rates when guided by local resistance data.
- Noninvasive serological tests (pepsinogen I, PGI/PGII ratio, H pylori antibodies) can identify high-risk individuals in endemic areas.
Conclusions:
- National screening for H pylori infection and subsequent eradication are crucial in high-incidence countries.
- Risk stratification using staging systems and serological markers aids in targeted endoscopic surveillance.
- Timely intervention against H pylori is a key strategy for gastric cancer prevention.
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