[Progress in diagnosis of infections brought on by Helicobacter pylori]

Area of Science:

• Microbiology
• Medical Diagnostics
• Gastroenterology

Background:

• Helicobacter pylori (H. pylori) infection is linked to gastritis and peptic ulcers.
• Gastric biopsy for H. pylori isolation and identification is the current standard diagnostic procedure.
• There is a growing need for rapid, non-invasive diagnostic methods.

Purpose of the Study:

• To review the spectrum of diagnostic techniques for H. pylori.
• To highlight advancements in non-invasive and molecular diagnostic approaches.
• To assess the utility of various methods in clinical and epidemiological settings.

Main Methods:

• Review of established and emerging H. pylori diagnostic techniques.
• Discussion of invasive methods (gastric biopsy culture).
• Evaluation of non-invasive tests (urea breath test), serological assays (ELISA, Western blot), and molecular methods (PCR).

Main Results:

• Gastric biopsy remains the gold standard for H. pylori detection.
• Non-invasive tests like the urea breath test are valuable for monitoring infection.
• Serological methods effectively measure anti-H. pylori immune responses.
• Molecular tests (PCR) demonstrate high sensitivity for H. pylori detection in various samples, including saliva and feces, showing promise for epidemiological studies.

Conclusions:

• A diverse range of diagnostic tools exists for H. pylori.
• Non-invasive and molecular techniques are increasingly important for efficient H. pylori diagnosis and monitoring.
• PCR-based methods offer significant potential for both clinical diagnostics and large-scale epidemiological research.