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[Once more about interstitial nephritis].

B I Shulutko, M S Komandenko

    Klinicheskaia Meditsina
    |February 1, 1991
    PubMed
    Summary

    This study identifies interstitial nephritis as a distinct condition, differentiating it from pyelonephritis. Patients with this condition show elevated immunoglobulin E (IgE) and drug sensitization, alongside congenital renal dysplasia.

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    [The clinical significance of immunological indices in chronic pyelonephritis].

    Terapevticheskii arkhiv·1993

    Area of Science:

    • Nephrology
    • Immunology
    • Pathology

    Background:

    • Chronic interstitial inflammation in the kidneys can present without typical signs of pyelonephritis.
    • Distinguishing interstitial nephritis from pyelonephritis is crucial for accurate diagnosis and treatment.

    Purpose of the Study:

    • To define diagnostic criteria for interstitial nephritis.
    • To differentiate interstitial nephritis from pyelonephritis based on morphological, immunological, and drug sensitization profiles.

    Main Methods:

    • Comparative morphological study of renal tissue in patients with and without pyelonephritis.
    • Immunological spectrum analysis (IgA, IgG, IgM, IgE).
    • Drug sensitization testing of peripheral blood mononuclear cells.

    Main Results:

    • Group 1 (interstitial inflammation) showed significantly elevated IgE levels and drug-induced mononuclear cell sensitization.
    • Morphological findings in Group 1 included congenital renal tissue dysplasia and diffuse interstitial inflammation.
    • Positive immunofluorescence in tubular walls was observed in 18% of Group 1 patients.

    Conclusions:

    • Interstitial nephritis is a distinct nosological entity characterized by specific immunological and morphological findings.
    • Elevated IgE and drug sensitization are key indicators differentiating interstitial nephritis from pyelonephritis.
    • Congenital renal dysplasia may be associated with interstitial nephritis.

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