期刊
JOURNAL OF DIABETES AND ITS COMPLICATIONS
卷 28, 期 1, 页码 96-100出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.jdiacomp.2013.08.006
关键词
Diabetic nephropathy; Podocyte; Podocalyxin; Flow cytometry
Aims: We tested whether urinary podocalyxin-positive element (PCX + EL) can be a marker of early stage of diabetic nephropathy (ON). Methods: ON patients (n = 68) and health controls (n = 28) were enrolled in this study. Patients were classified into three groups: normoalbuminuria, microalbuminuria and macroalbuminuria. Urinary PCX + EL, serum cystatin C (Scys C) and serum creatinine (SCr) were quantified, and correlations between urinary PCX + EL and urinary albumin, Scys C and SCr were examined. The comparison of diagnosis efficiency among urinary PCX + EL, Scys C and SCr was made by receiver operating characteristic (ROC) analysis. Results: Urinary PCX + EL Scys C and SCr significantly increased in ON patients compared with controls. Urinary PCX + EL increased significantly in all three patients groups compared with controls. However, the concentration of Scys C and SCr did not increase in normoalbuminuria group. Urinary albumin, Scys C and SCr correlated with urinary PCX + EL ROC curve analysis indicated that area under the curve (AUC) of urinary PCX + EL (0.966) is higher than that of Scys C (0.857) and SCr (0.726) for discriminating nephropathy between ON patients and controls. Conclusion: Urinary PCX + EL may be a noninvasive marker for the early stage of DN. (C) 2014 Elsevier Inc. All rights reserved.
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