Role of nitric oxide in renal function in rats with short and prolonged periods of streptozotocin‐induced diabetes

Abstract

Both NO and hyperglycaemia are involved in modulating renal hyperfiltration in diabetic rats. The elevations of urine flow rate and urinary excretion of both protein and glucose would be expected to represent the reduction of renal tubular reabsorption rather than renal hyperfiltration in diabetic rats. NO does not participate in the change of renal tubular function in diabetic rats. There was a parallel change of urine flow rate and urinary excretion of protein in diabetic rats. The rise of the PG level itself would account for the increases of GFR, V, Upro and FEG in diabetic rats. Glomerular hyperfiltration, diuresis and proteinuria in diabetic rats are not exhibited until the PG level rises to = 300-350 mg/dl.