Abstract
Eleven patients with active systemic lupus erythematosus, previously untreated, were studied to 1) determine the acute effect of corticosteroids on circulating immune complex (CIC) levels and 2) correlate the initial CIC profile with the development of organ system involvement. Using serial measurements of CIC as detected by assays for cryoglobulins and binding to C1q, Raji cells, and rheumatoid factor, we found that levels of CIC change little during the first month of high dose daily steroid therapy, but they uniformly decrease to near normal by 6 to 12 months. High levels of CIC detected by Raji cell assay early in the course of systemic lupus erythematosus and before steroid therapy appear to be predictive of the development of chronic lupus nephritis (P less than 0.005).
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