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Nephron Clin Pract. 2008;108(3):c233-40. doi: 10.1159/000120209. Epub 2008 Mar 11.

Serum fetuin-a concentration and endothelial dysfunction in chronic kidney disease.

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  • 1Department of Nephrology, G├╝lhane School of Medicine, Ankara, Turkey. kaysercaglar@yahoo.co

Abstract

BACKGROUND:

Defective endothelial function, an initial step in the development of atherosclerotic plaque, is prevalent in moderate to advanced chronic kidney disease (CKD). In this study, the investigators hypothesized that fetuin-A, a calcification inhibitor, is a novel risk factor for the development of endothelial dysfunction in patients.

METHODS:

198 nondiabetic patients with a mean age of 44.0 +/- 12.4 years and with different stages of CKD were studied. In addition to a detailed metabolic panel, flow-mediated dilatation assessed by high-resolution brachial ultrasonography was performed to determine endothelial dysfunction. Carotid intima-media thickness was also estimated by ultrasonography. Serum fetuin-A concentrations were determined by using a human ELISA method.

RESULTS:

Endothelial dysfunction was observed in all stages (1-5) of CKD and worsened in parallel to the reduction in estimated glomerular filtration rate. Serum fetuin-A concentrations were also found to be decreased in all but stage 1 CKD. On multiple regression analysis, endothelial dysfunction was independently associated with fetuin-A (beta = 0.745, p < 0.001) and intact parathyroid hormone concentrations (beta = -0.216, p < 0.001).

CONCLUSION:

These data in a selected cohort of CKD patients indicate that fetuin-A may be one of the contributing factors for the development of endothelial dysfunction in CKD patients.

Copyright 2008 S. Karger AG, Basel.

PMID:
18334823
[PubMed - indexed for MEDLINE]
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