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Immune-complex glomerulopathy in patients treated with captopril

S J Hoorntje, C G Kallenberg, J J Weening

    Lancet (London, England)
    |June 7, 1980
    PubMed

    Insights

    Captopril treatment may be linked to immune-complex glomerulopathy. Renal biopsies in 13 patients revealed early membranous glomerulopathy in 4, with some experiencing nephrotic syndrome.

    Area of Science:

    • Nephrology
    • Immunopathology
    • Pharmacology

    Background:

    • Captopril is an angiotensin-converting enzyme (ACE) inhibitor widely used for hypertension and heart failure.
    • The potential renal side effects of ACE inhibitors, particularly immune-mediated glomerular diseases, require further investigation.

    Purpose of the Study:

    • To investigate the renal histopathological findings in patients treated with captopril.
    • To determine if captopril is associated with the development of immune-complex glomerulopathy.

    Main Methods:

    • Renal biopsies were performed on 13 patients receiving captopril therapy.
    • Histopathological analysis included light microscopy, electron microscopy, and immunofluorescence.

    Main Results:

    • Four patients exhibited findings consistent with early-stage membranous glomerulopathy (MGP).
    • Electron microscopy revealed subepithelial deposits, and immunofluorescence showed a patchy granular pattern in other patients.
    • One patient with MGP presented with nephrotic syndrome; another with MGP had a serum-sickness-like syndrome.

    Conclusions:

    • Captopril use may be associated with the development of immune-complex glomerulopathy.
    • The findings suggest a potential link between captopril and glomerular immune complex deposition.
    • Further research is warranted to elucidate the mechanisms and clinical significance of this association.

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