Abstract

Using a sandwich ELISA, we studied 48 patients with IgA nephropathy and 10 patients with diffuse mesangial proliferative glomerulonephritis without IgA deposition (non-IgA PGN) to determine if levels of serum soluble Fas (s-Fas) might reflect the disease activity. The levels of serum s-Fas in patients with the advanced stage of IgA nephropathy were significantly higher than those in patients with the mild stage of the disease, in non-IgA PGN or in healthy controls. The results showed that advanced stage IgA nephropathy patients who showed heavy proteinuria and the presence of urinary casts revealed high levels of serum s-Fas. It was thus suggested that the measurement of serum s-Fas is useful in evaluating the degree of renal injury in patients with IgA nephropathy.

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