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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 microbiological diagnosis of pyelonephritis in children under the control of bacterial persistence factors]

L S Zykova, O E Chelpachenko

    Zhurnal Mikrobiologii, Epidemiologii I Immunobiologii
    |August 1, 1994
    PubMed

    Insights

    This study investigated bacterial virulence factors in pyelonephritis patients and healthy children. Enterobacteria and Pseudomonas strains showed significant antilysozyme and anti-interferon activity, confirming their role in renal infections.

    Area of Science:

    • Urology
    • Microbiology
    • Immunology

    Background:

    • Opportunistic bacteria in urine can cause urinary tract infections, including pyelonephritis.
    • Bacterial persistence factors contribute to the severity and chronicity of renal infections.

    Purpose of the Study:

    • To assess antilysozyme and anti-interferon activity in urological bacterial strains.
    • To correlate bacterial persistence factors with isolation source.
    • To identify etiological agents of pyelonephritis.

    Main Methods:

    • Analysis of 474 urological strains from pyelonephritis patients' urine.
    • Analysis of 302 urological strains from healthy children's urine.
    • Determination of antilysozyme and anti-interferon activity.

    Main Results:

    • Bacterial persistence factors were directly related to the source of isolation.
    • Enterobacteria and Pseudomonas exhibited significant antilysozyme and anti-interferon activity.
    • These activities helped differentiate pyelonephritis pathogens from other urinary microflora.

    Conclusions:

    • Enterobacteria and Pseudomonas play a key etiological role in renal infections.
    • Antilysozyme and anti-interferon activity are important indicators of bacterial virulence in pyelonephritis.
    • These findings aid in differentiating causative agents of pyelonephritis.

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