期刊
NEPHRON CLINICAL PRACTICE
卷 108, 期 4, 页码 C291-C297出版社
KARGER
DOI: 10.1159/000127838
关键词
advanced glycation end products; angiotensin II type 1 blockers; irbesartan; diabetic nephropathy; N-epsilon-carboxymethyllysine; pentosidine
Background/Aims: The aim of this post-hoc analysis of a prospective study in patients with type 2 diabetic nephropathy was to investigate whether treatment with the angiotensin II type 1 receptor blocker irbesartan leads to a reduction in the serum levels of the advanced glycation end products (AGEs) pentosidine and N-epsilon-carboxymethyllysine (CML). Methods: One hundred and ninety-six patients of the Irbesartan in Diabetic Nephropathy Trial cohort (mean age 61 +/- 6.5 years, 62 female, 134 male) with a mean estimated glomerular filtration rate of 47.7 ml/min were treated with irbesartan (n = 65), the calcium channel blocker amlodipine (n = 61) or by placebo (n = 70). Serum levels of pentosidine and CML were measured at baseline and after follow-up (23.4 months). Results: Estimated glomerular filtration rate decreased in all groups by a mean of 8.6 ml/min. Serum levels of AGEs increased significantly (p < 0.001) during followup. After controlling for renal function and total protein concentration, changes were 53, 55, 50% for pentosidine and 29, 24, 23% for CML (irbesartan, amlodipine and placebo group, respectively). The increase was not significantly different between the treatment groups. Conclusion: Irbesartan did not alter the increase in pentosidine and CML in serum of type 2 diabetic patients with progressive nephropathy. This finding suggests that angiotensin receptor blockade alone is insufficient to reduce serum levels of AGEs in diabetic nephropathy. Copyright (C) 2008 S. Karger AG, Basel.
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