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Updated: Aug 15, 2026

Quantitative Polymerase Chain Reaction (qPCR)-Based Rapid Diagnosis of Helicobacter pylori Infection and Antibiotic Resistance
Published on: July 28, 2023
Helicobacter pylori infection in pediatric population: epidemiology, pathophysiology, and therapy
M Carolina Wallis-Crespo1, Antonio Crespo
1University of South Florida School of Medicine, Tampa General Hospital, USA.
Insights
Helicobacter pylori (H. pylori) infection is common, especially in children, causing gastritis and ulcers. Treatment involves proton-pump inhibitors and antibiotics, but drug resistance is a growing concern.
Area of Science:
- Microbiology
- Infectious Diseases
- Gastroenterology
Background:
- Helicobacter pylori is a prevalent human pathogen affecting over half of adults and children.
- H. pylori infection is frequently linked to chronic gastritis and peptic ulcer disease, particularly in children.
- Infection prevalence and early colonization are higher in developing countries compared to developed ones.
Purpose of the Study:
- To review the prevalence, diagnosis, and treatment of Helicobacter pylori infections.
- To highlight the challenges posed by H. pylori, including asymptomatic cases and rising drug resistance.
- To discuss current and potential therapeutic strategies for H. pylori eradication.
Main Methods:
- Review of current diagnostic methods including histology, culture, urease tests, PCR, and stool antigen detection.
- Analysis of clinical presentations, ranging from asymptomatic to symptoms like nausea, vomiting, and epigastric pain.
- Evaluation of treatment outcomes, focusing on combination therapies for optimal eradication rates.
Main Results:
- H. pylori is a leading cause of chronic gastritis and peptic ulcer disease in children.
- Combination therapy with a proton-pump inhibitor and two antibiotics offers the best eradication rates.
- Antibiotic resistance in H. pylori is an increasing challenge, limiting treatment options.
Conclusions:
- Effective H. pylori eradication relies on appropriate antibiotic and proton-pump inhibitor combinations.
- The growing issue of drug resistance necessitates ongoing research into new therapeutic approaches.
- Early diagnosis and treatment are crucial, especially given the high prevalence in childhood and developing nations.
Abstract:
Helicobacter pylori, one of the most commonly encountered human pathogens, has been recognized in more than half of adults and children with chronic nonspecific gastritis, and nearly all children with peptic ulcer disease demonstrate antral infection with H. pylori. A high prevalence and early colonization of H. pylori infection in childhood was described in developing countries in contrast to developed countries. The current diagnostic methods include histology, microbiological culture, urease activity detection, polymerase chain reaction, and stool antigen detection. The infection often presents with nausea, vomiting, and epigastric pain but may remain asymptomatic. The treatment modality options are multiple; however, the association of a proton-pump inhibitor and two antibiotics for 1 or 2 weeks gives the best eradication rates. Drug resistance is a growing problem in this microorganism and new therapeutic options are currently limited.
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