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Related Concept Videos

Treating Helicobacter pylori in Peptic Ulcers: Antimicrobial Therapy01:16

Treating Helicobacter pylori in Peptic Ulcers: Antimicrobial Therapy

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Helicobacter pylori, a resilient gram-negative bacterium, can thrive in the stomach's harsh, acidic environment. Infection with H. pylori leads to a cascade of events within the stomach lining. One of the critical disruptions caused by this bacterium is the interference with somatostatin production, a hormone responsible for regulating acid secretion. This interference tips the balance, escalating acid secretion and diminishing bicarbonate levels. This imbalance compromises the defensive...
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Peptic ulcer disease (PUD) presents with diverse symptoms depending on the location and severity of the ulcer. Clinical manifestations of peptic ulcer include dull pain and a burning sensation in the mid-epigastric region.
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Gastrointestinal (GI) diagnostic studies are pivotal in confirming, ruling out, diagnosing, or staging various diseases, including cancers. Following diagnosis, allocating time for discussions with the patient and providing informational resources is crucial. Diagnostic assessments of the GI tract often occur in outpatient settings like endoscopy suites or GI labs. Preparation for these tests may include dietary restrictions, fasting, liquid bowel preparations, laxatives, enemas, and the...
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Updated: Oct 24, 2025

Detection of Helicobacter pylori Infection and Antibiotic Resistance via Stool Quantitative Polymerase Chain Reaction Analysis
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Methods for detection of Helicobacter pylori from stool sample: current options and developments.

Enming Qiu1, Zhou Li2, Shuai Han3

  • 1General Surgery Center, Department of Gastrointestinal Surgery, Zhujiang Hospital, Southern Medical University, Haizhu District, No.253. Gongye Middle Avenue, Guangzhou, Guangdong, 510280, China.

Brazilian Journal of Microbiology : [Publication of the Brazilian Society for Microbiology]
|August 15, 2021
PubMed
Summary

Accurate Helicobacter pylori detection is crucial. Stool-based tests offer a promising, accessible alternative to traditional methods, especially for children and mass screening in resource-limited settings.

Keywords:
Diagnostic methodHelicobacter pyloriPolymerase chain reactionStool antigen testStool sample

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Area of Science:

  • Clinical microbiology
  • Infectious disease diagnostics

Background:

  • Accurate detection of Helicobacter pylori infection is vital for effective treatment.
  • Current non-invasive methods like the urease breath test have limitations, particularly in developing countries and for pediatric patients.
  • Need for accessible and reliable diagnostic tools for H. pylori.

Purpose of the Study:

  • To review and summarize research on stool-based methods for Helicobacter pylori detection.
  • To aid clinicians in selecting appropriate diagnostic tests for H. pylori infection.

Main Methods:

  • Review of studies focusing on stool antigen tests for H. pylori detection.
  • Evaluation of PCR-based methods for H. pylori detection and antibiotic resistance.
  • Consideration of novel diagnostic approaches.

Main Results:

  • Stool antigen tests are rapid, simple, and inexpensive but can be affected by antigen heterogeneity and quantity.
  • PCR methods offer specificity for H. pylori and antibiotic resistance but require specialized facilities and are susceptible to inhibitors and dead bacteria.
  • Novel methods are emerging as potential alternatives.

Conclusions:

  • Stool-based diagnostic methods present a viable alternative for H. pylori detection, particularly for pediatric populations and mass screening.
  • Careful consideration of method-specific advantages and limitations is necessary for optimal clinical application.
  • Further research into novel stool-based diagnostics is warranted.