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Lookup NU author(s): Professor Rudy Bilous
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Renal interstitial expansion is now considered a useful marker of progression of several nephropathies. This study describes a multicenter, prospective, double-blind, placebo-controlled, randomized trial of the effects of Perindopril (4 mg/d) on kidney structure and function over 2 yr in 26 type 2 diabetic patients with proteinuria ranging from 70 to 4210 mg/d and relatively preserved GFR (creatinine clearance >60 ml/min). All patients underwent baseline renal biopsy, but four (15%) were not randomized because of the presence of nondiabetic nephropathy. The remaining 22 were randomized (11 to Perindopril [PE], 11 to placebo [PO]), and 19 (9 PE, 10 PO) underwent follow-up biopsy at 2 yr, BP was controlled equally in both groups throughout. Proteinuria increased in PO patients (+1562 mg/d) but declined in PE patients (-156 mg/d) (P < 0.05). Morphometric analysis was performed by light microscopy using a Biocom computer. Over the 2 yr, mean cortical interstitial fractional volume identical at baseline increased significantly in PO patients (31.7 +/- 5.3 versus 40.2 +/- 11.1%; P = 0.001) but was unchanged in PE patients (33.8 +/- 4.9 versus 34.7 +/- 6.6%; P = 0.50). It is concluded that: (1) nondiabetic nephropathy is present in approximately 15% of albuminuric type 2 diabetic patients; and (2) Perindopril prevents interstitial expansion in hypertensive patients with biopsy-proven diabetic glomerulopathy. These results support a role of angiotensin II in the progression of interstitial changes in type 2 diabetic patients with nephropathy.
Author(s): Bilous RW; Cordonnier DJ; Pinel N; Barro C; Maynard C; Zaoui P; Halimi S; De Ligny BH; Reznic Y; Simon D
Publication type: Article
Publication status: Published
Journal: Journal of the American Society of Nephrology
Year: 1999
Volume: 10
Issue: 6
Pages: 1253-1263
Print publication date: 01/06/1999
ISSN (print): 1046-6673
ISSN (electronic):
Publisher: American Society of Nephrology
URL: http://jasn.asnjournals.org/content/10/6/1253.full.pdf+html
