We previously reported a patient who developed anti-glomerular basement membrane antibody-induced glomerulonephritis (GBM-GN) after extracorporeal shock wave lithotripsy (ESWL). To determine whether ESWL causes anti-GBM antibody production thereby inducing GBM-GN, we measured serum levels of type-IV collagen (the most major component of GBM) before and after ESWL. Serum samples were obtained from 13 patients with renal stones and 15 with ureteral stones. The serum type-IV collagen level was determined by a radioimmunoassay method. No significant changes were observed in the type-IV collagen level after ESWL in each patient group. Type-IV collagen was abundant in the GBM but was not released into the blood after ESWL. Therefore, in patients with urinary tract stones, it is not likely that type-IV collagen, a hidden antigen in the renal glomeruli, is exposed or released into the blood after ESWL, resulting in autoantibody production and GBM-GN.

Keywords:
Extracorporeal shock wave lithotripsy, Collagen type-IV, Basement membrane, anti-glomerular, Glomerulonephritis, antibody-induced
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© 1995 S. Karger AG, Basel
1995
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