In an investigation into the effect of prostaglandin E1 on proteinuria in nephrotic diabetic nephropathy, five patients were treated with 40 μg prostaglandin E1 administered intravenously over 2 h twice daily for 4 weeks. The following parameters were compared before and after treatment: protein excretion in urine; total serum protein concentration; serum albumin concentration; creatinine clearance; blood urea nitrogen; and serum creatinine content. A further five patients with nephropathy resulting from non-insulin-dependent diabetes mellitus were selected as controls. Analysis of the results using Student's t-test showed no significant change in any of the parameters before and after treatment.
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