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Gastric Mucosa Quantitative Polymerase Chain Reaction Analysis for Detecting Helicobacter pylori and Antibiotic Resistance
05:23

Gastric Mucosa Quantitative Polymerase Chain Reaction Analysis for Detecting Helicobacter pylori and Antibiotic Resistance

Published on: March 7, 2025

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[IMMUNOLOGIC MONITORING OF HELICOBACTER PYLORI PERSISTENCE IN THE ORGANISM]

Yu A Belaya, O F Belaya, V G Petrukhin

    Zhurnal Mikrobiologii, Epidemiologii I Immunobiologii
    |October 17, 2015
    PubMed

    Insights

    This 15-year study tracked Helicobacter pylori antigens like CagA and VacA in patients and volunteers. It reveals how these bacterial components interact with the host immune system, impacting disease risk and prognosis.

    Area of Science:

    • Microbiology
    • Immunology
    • Gastroenterology

    Background:

    • Helicobacter pylori is a significant pathogen causing gastrointestinal diseases.
    • Understanding the long-term dynamics of H. pylori antigens and host immune responses is crucial.

    Purpose of the Study:

    • To investigate the frequency, circulation, and dynamics of key H. pylori antigens (LPS/O-antigens, high molecular weight proteins like CagA and VacA).
    • To analyze the reciprocal immune reactions in the host.
    • To establish the relationship between antigen-host interaction and the risk/prognosis of complications during chronic H. pylori infection.

    Main Methods:

    • Prospective longitudinal study over 15 years.
    • Monitoring of pathogenetically significant H. pylori antigens (LPS/O-antigens, CagA, VacA) in biological media.
    • Assessment of host immune responses.
    • Analysis of correlations between antigen dynamics, immune reactions, and clinical outcomes in patients and asymptomatic volunteers.

    Main Results:

    • Detailed data on the occurrence and circulation patterns of H. pylori antigens over 15 years.
    • Characterization of host immune responses to specific H. pylori antigens.
    • Established correlations between antigen-host interactions and the risk and prognosis of gastrointestinal diseases.
    • Identified features reflecting the parasite-host tandem dynamics.

    Conclusions:

    • The long-term dynamics of H. pylori antigens and host immune responses are critical for understanding disease pathogenesis.
    • Antigen circulation and immune reactions provide insights into the risk and prognosis of complications associated with chronic H. pylori infection.
    • This research contributes to predicting and managing H. pylori-related gastrointestinal conditions.

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