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Updated: Jul 6, 2026

Gastric Mucosa Quantitative Polymerase Chain Reaction Analysis for Detecting Helicobacter pylori and Antibiotic Resistance
Published on: March 7, 2025
Helicobacter pylori infection: a clinical overview
A Kandulski1, M Selgrad, P Malfertheiner
1Department of Gastroenterology, Hepatology and Infectious Diseases, Otto-von-Guericke University Magdeburg, Magdeburg, Germany.
Helicobacter pylori infection affects over half the global population, causing gastroduodenal diseases. Eradicating H. pylori can cure many related conditions and prevent severe outcomes like gastric cancer.
Area of Science:
- Gastroenterology
- Infectious Diseases
- Oncology
Background:
- Helicobacter pylori infects over half the world's population, a key factor in gastroduodenal diseases.
- Infection leads to chronic gastritis, potentially progressing to ulcers, gastric cancer, and extragastric disorders.
- Clinical outcomes depend on H. pylori genotype, host factors, and environmental influences.
Purpose of the Study:
- To review current literature on Helicobacter pylori and its associated pathologies.
- To summarize the link between H. pylori infection and various gastrointestinal and extragastric diseases.
- To highlight the therapeutic role of H. pylori eradication.
Main Methods:
- Literature review of current scientific publications.
- Analysis of studies on H. pylori pathogenesis and clinical manifestations.
- Synthesis of evidence regarding H. pylori eradication efficacy.
Main Results:
- H. pylori eradication significantly decreases gastroduodenal ulcer incidence and recurrence.
- Eradication can reverse precancerous lesions like atrophic gastritis and intestinal metaplasia.
- H. pylori infection is linked to several extragastric diseases beyond gastroduodenal pathologies.
Conclusions:
- Multiple clinical conditions are causally linked to H. pylori infection.
- H. pylori eradication offers a curative treatment for many associated diseases.
- The role of H. pylori extends to extragastric conditions, underscoring the importance of addressing infection.
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