Abstract
Sodium dodecyl sulphate polyacrylamide gel electrophoresis (SDS PAGE) of urinary proteins was performed in 56 children with nephrotic syndrome during relapse, of whom 31 had their urines tested within 2 months of the onset of disease. The urines of all 32 steroid-sensitive [presumed minimal change nephrotic syndrome (MCNS)] patients revealed albumin and transferrin bands only; whereas 19 steroid-resistant children with focal glomerular sclerosis showed additional excretion of IgG and low molecular weight proteins (lysozyme, β2). This mixed pattern of proteinuria was also detected in 5 other steroid-resistant patients, 3 of whom were Africans with MCNS on biopsy and 2 who were Indians and not biopsied. Findings in patients studied within 2 months of presentation were identical to those investigated later in the course of the disease. SDS PAGE analysis of urine, which appears to distinguish steroid-responsive from steroid-resistant patients, may provide a valuable adjunct to the management of childhood nephrotic syndrome.
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Ramjee, G., Coovadia, H.M. & Adhikari, M. Sodium dodecyl sulphate polyacrylamide gel electrophoresis of urinary proteins in steroid-responsive and steroid-resistant nephrotic syndrome in children. Pediatr Nephrol 8, 653–656 (1994). https://doi.org/10.1007/BF00869077
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DOI: https://doi.org/10.1007/BF00869077