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. 2008 Jun;31(6):1170-6.
doi: 10.2337/dc07-1960. Epub 2008 Mar 10.

Markers of endothelial dysfunction and inflammation in type 1 diabetic patients with or without diabetic nephropathy followed for 10 years: association with mortality and decline of glomerular filtration rate

Anne Sofie Astrup  1 , Lise Tarnow, Lotte Pietraszek, Casper G Schalkwijk, Coen D A Stehouwer, Hans-Henrik Parving, Peter Rossing
Affiliations

Markers of endothelial dysfunction and inflammation in type 1 diabetic patients with or without diabetic nephropathy followed for 10 years: association with mortality and decline of glomerular filtration rate

Anne Sofie Astrup et al. Diabetes Care. 2008 Jun.

Abstract

Objective: We evaluated the association of biomarkers of endothelial dysfunction and inflammation with all-cause mortality and cardiovascular mortality and morbidity and decline in glomerular filtration rate (GFR) in type 1 diabetic patients.

Research design and methods: We prospectively followed 199 type 1 diabetic patients with diabetic nephropathy and 192 patients with persistent normoalbuminuria. Biomarkers were measured at baseline.

Results: We constructed two Z scores: the mean inflammatory Z score combined C-reactive protein, interleukin-6, soluble intercellular adhesion molecule (sICAM-1), and secreted phospholipase A2 and the mean Z score for endothelial dysfunction combined soluble vascular cell adhesion molecule 1, plasminogen activator inhibitor-1, and sICAM-1. The mean Z score of inflammatory biomarkers was associated with mortality and the combined end point in patients with diabetic nephropathy after multivariate adjustment (hazard ratio 1.7 [95% CI 1.1-2.6]; P = 0.025 and 1.5 [1.1-2.2]; P = 0.017). The mean Z score for endothelial dysfunction biomarkers was associated with mortality in a model adjusting for age and sex in patients with diabetic nephropathy (1.6 [1.0-2.3]; P = 0.031). The mean Z score for endothelial dysfunction correlated with decline in GFR (r = -0.243; P = 0.001); the correlation persisted after multivariate adjustment (coefficient -1.38 [95% CI -2.27 to -0.50]; P = 0.002).

Conclusions: Mean Z scores of inflammatory biomarkers are significantly associated with all-cause mortality and cardiovascular morbidity and mortality in patients with nephropathy after multivariate adjustment. These data suggest that the high risk of cardiovascular disease in type 1 diabetes may be explained in part by inflammatory activity. Mean Z score of endothelial dysfunction correlated after multivariate adjustment with the rate of decline in GFR.

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