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  • Title: Circulating immune complexes in membranoproliferative glomerulonephritis.
    Author: Davis CA, Marder H, West CD.
    Journal: Kidney Int; 1981 Dec; 20(6):728-32. PubMed ID: 6801370.
    Abstract:
    Circulating immune complexes (CIC), measured by the solid-phase Clq method, were found to be in abnormal concentration in about half of 39 patients with membranoproliferative glomerulonephritis (MPGN). In contrast, they were present, usually in higher concentration, in nearly all patients with active lupus nephritis. Correlations between clinical course and CIC levels in patients with MPGN showed that complexes were always present when the disease was mild or "silent," but when renal impairment developed or was incipient, complexes were nearly always absent. In patients with disease of intermediate severity, characterized by definite proteinuria but without renal impairment, 50% had complexes. The presence of complexes when glomerular abnormality is relatively slight could be interpreted as indicating that the complexes measured were not nephritogenic, or that they program subsequent events that augment glomerular injury in the absence of complexes. The measurement of CIC in MPGN appears to have minimal value both in diagnosis and in determining prognosis.
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