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Abstract
In the past few years diabetes has become the leading cause of end-stage renal disease in all Western countries. A correlation between blood pressure and rate of progression in diabetic nephropathy was noted very early, and increased local activity of the renin angiotensin system was identified as a major pathophysiological mechanism for proteinuria and nephrosclerosis in diabetic patients. Angiotensin converting enzyme (ACE) inhibitors have been shown to slow progression of nephropathy in type 1 diabetic patients. The majority of diabetic patients with nephropathy, however, are suffering from type 2 diabetes and until last year there was no convincing evidence of ACE inhibitors being able to slow progression in type 2 diabetic patients with nephropathy. Three new studies now fill this gap, showing that angiotensin receptor blockers (ARB) are nephroprotective in patients with type 2 diabetes, independently of blood pressure. This review provides an in-depth discussion of the results of these studies and provides recommendations for patient management.