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Journal of Diabetes Research
Volume 2015 (2015), Article ID 507265, 8 pages
http://dx.doi.org/10.1155/2015/507265
Research Article

Association of Plasma Adiponectin and Oxidized Low-Density Lipoprotein with Carotid Intima-Media Thickness in Diabetic Nephropathy

1Laboratory of Pharmacology, Medical School, Democritus University of Thrace, 68100 Alexandroupolis, Greece
2Department of Nephrology, Medical School, Democritus University of Thrace, 68100 Alexandroupolis, Greece
3Second Department of Internal Medicine, Diabetes Clinic, Medical School, Democritus University of Thrace, 68100 Alexandroupolis, Greece

Received 17 December 2014; Revised 8 April 2015; Accepted 22 April 2015

Academic Editor: Ponnusamy Saravanan

Copyright © 2015 Anna Tavridou et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Aims. We sought to determine the association between levels of adiponectin and oxidized low-density lipoprotein (ox-LDL) in patients with diabetic nephropathy as well as their effect on carotid intima-media thickness (cIMT). Methods. Adiponectin and ox-LDL were determined in 25 diabetic patients without nephropathy and 94 patients at different stages of diabetic nephropathy including subjects on hemodialysis. cIMT was measured using real-time B-mode ultrasonography. Results. Plasma adiponectin levels increased significantly with severity of diabetic nephropathy (), on the contrary to ox-LDL which decreased with disease severity (). cIMT was significantly higher at late stages of diabetic nephropathy compared with early stages (). Adiponectin was a significant negative predictor of ox-LDL levels (, ), independently of confounding factors. There was no significant correlation between cIMT and adiponectin or ox-LDL either in the total sample population or according to disease staging. Cluster analysis showed that patients with the highest cIMT values, highest levels of adiponectin, and lowest levels of ox-LDL were included in one cluster and all assigned to stage 5 of diabetic nephropathy. Conclusions. There was no significant association between adiponectin or ox-LDL and cIMT and, therefore, other factors affecting this surrogate marker of cardiovascular disease in diabetic nephropathy should be sought.