alexa Effects of inhibition of glycation and oxidative stress on the development of diabetic nephropathy in rats.
Diabetes & Endocrinology

Diabetes & Endocrinology

Journal of Diabetes & Metabolism

Author(s): Agardh CD, Stenram U, Torffvit O, Agardh E

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Abstract We investigated whether aminoguanidine (AG), an inhibitor of advanced glycated end product formation, or probucol (PB), a free radical scavenger, could influence signs of glomerular and distal tubular function and morphological changes in kidneys of male Wistar rats after 6 months of streptozocin (STZ)-induced diabetes. Diabetic rats had a higher kidney weight/body weight ratio (P<.001), but neither AG nor PB influenced the increased ratio. Diabetes caused an increased urinary albumin excretion (P<.05), which was normalized by AG, but further exaggerated by PB (P<.001). Diabetes also caused an increase in the urinary excretion of Tamm-Horsfall protein (P<.001). Both AG and PB attenuated this increase (P<.05 for both). A few glomeruli displayed focal thickening of varying degrees. Silver staining disclosed the glomerulopathy to be intercapillary glomerulosclerosis. Rats on PB-enriched diet displayed less pronounced changes than untreated rats (P<.01), while AG had no effect. The results suggest that oxidative stress could be involved in the development of diabetic nephropathy.
This article was published in J Diabetes Complications and referenced in Journal of Diabetes & Metabolism

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