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Intrarenal Injection of Escherichia coli in a Rat Model of Pyelonephritis
06:09

Intrarenal Injection of Escherichia coli in a Rat Model of Pyelonephritis

Published on: July 18, 2017

[The clinical significance of immunological indices in chronic pyelonephritis]

B I Shulutko, N N Kulaeva, I V Ambrozas

    Terapevticheskii Arkhiv
    |January 1, 1993
    PubMed

    Insights

    Pyelonephritis involves immune system changes, with reduced T-lymphocytes and altered immunoglobulin levels. This suggests a genetic predisposition to infection-mediated inflammation, impacting local immunity and receptor density.

    Area of Science:

    • Immunology
    • Nephrology
    • Microbiology

    Background:

    • Pyelonephritis is a complex kidney infection.
    • Understanding its immunological underpinnings is crucial for effective management.

    Purpose of the Study:

    • To evaluate humoral and cellular immunity in patients with pyelonephritis.
    • To investigate the role of immune system alterations in disease pathogenesis.

    Main Methods:

    • Assessed humoral immunity via immunoglobulin levels (IgA, IgM).
    • Evaluated cellular immunity using lymphocyte rosette-test and T-lymphocyte subpopulation counts.
    • Analyzed biopsy tissue for bacterial contamination and complement C3 levels.

    Main Results:

    • Significant decrease in T-lymphocytes (total, active, suppressors) observed during remission and exacerbation.
    • IgA levels increased during remission, while IgM decreased, with further changes during aggravation.
    • Complement C3 levels were comparable to controls; no biopsy contamination found.

    Conclusions:

    • Pyelonephritis exhibits significant cellular immunity suppression, particularly involving T-suppressors.
    • Findings support the concept of pyelonephritis as a genetically determined, infection-mediated inflammatory disease.
    • Local immune defects and altered receptor density, potentially triggered by urodynamic disorders, are characteristic.

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