In:
Diabetes/Metabolism Research and Reviews, Wiley, Vol. 30, No. 8 ( 2014-11), p. 736-741
Abstract:
The aim of this study was to evaluate the association between urinary nonalbumin protein (NAP) and urinary tubular markers in early diabetic nephropathy. Methods Urinary NAP was measured in 118 patients with type 2 diabetes with estimated glomerular filtration rates (eGFR) ≥60 mL/min/1.73 m 2 . Urine levels of tubular markers [kidney injury molecule (KIM)‐1, neutrophil gelatinase‐assoicated lipocalin (NGAL) and liver‐type fatty acid‐binding protein (L‐FABP)] were measured by using an Enzyme‐linked immunosorbent assay (ELISA). Patients were divided into three groups according to urinary NAP values. Results The urine levels of KIM‐1, NGAL and L‐FABP were significantly higher in the third tertile group than in the first tertile group (all p 〈 0.001). There was a significant positive correlation between NAP and each tubular marker (KIM‐1, NGAL and L‐FABP) in univariate analysis (all p 〈 0.001). Urinary NAP was positively correlated with all urinary tubular markers after adjustment for age, duration of diabetes, systolic blood pressure, eGFR, low‐density lipoprotein cholesterol, HbA 1c and albumin‐to‐creatinine ratio (KIM‐1 r = 0.170, p 〈 0.001; NGAL r = 0.142, p 〈 0.015 and L‐FABP r = 0.262, p 〈 0.001). In normoalbuminuric patients ( n = 58), urinary NAP was also significantly correlated with NGAL and L‐FABP in multivariate regression analyses ( r = 0.302, p = 0.030 and r = 0.430, p = 0.001). Conclusions These findings suggest that urinary NAP reflects tubular damage in the early‐stage type 2 diabetic nephropathy (eGFR ≥ 60 mL/min/1.73 m 2 ). We suggest that urinary NAP could be used as a biomarker for tubular damage in clinical practice. Copyright © 2014 John Wiley & Sons, Ltd.
Type of Medium:
Online Resource
ISSN:
1520-7552
,
1520-7560
Language:
English
Publisher:
Wiley
Publication Date:
2014
detail.hit.zdb_id:
2001565-3
