Correlation between markers of renal tubular injury and proteinuria in patients with diabetic kidney disease

Objective To explore the correlation between markers of tubular injury, 24 h urine protein quantification (24 hUTP) and albumin creatinine ratio (ACR) in patients with diabetic kidney disease (DKD) and explore the relationship between tubular and glomerular injuries to provide guidance for clinical...

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Main Authors: Pu Yan, Ning Zhang, Tong-xia Li, Shi-wei Liu
Format: Article
Language:zho
Published: Editorial Department of Journal of Clinical Nephrology 2024-04-01
Series:Linchuang shenzangbing zazhi
Subjects:
Online Access:http://www.lcszb.com/cn/article/doi/10.3969/j.issn.1671-2390.2024.04.006
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author Pu Yan
Ning Zhang
Tong-xia Li
Shi-wei Liu
author_facet Pu Yan
Ning Zhang
Tong-xia Li
Shi-wei Liu
author_sort Pu Yan
collection DOAJ
description Objective To explore the correlation between markers of tubular injury, 24 h urine protein quantification (24 hUTP) and albumin creatinine ratio (ACR) in patients with diabetic kidney disease (DKD) and explore the relationship between tubular and glomerular injuries to provide guidance for clinical management of DKD. Methods From November 1, 2019 to December 31, 118 proteinuric patients with a definite diagnosis of DKD at outpatient clinic and ward were recruited. And 24 hUTP, ACR, blood creatinine, urinary N-acety1-β-D-glucosaminidase, alpha 1 microglobulin, retinol-binding protein and kidney injury molecule-1 were measured and estimated glomerular filtration rate (eGFR) calculated by the CKD-EPI formula. Linear correlation analysis was utilized for examining the correlation between markers of proximal tubular injury, tubular reabsorption function and 24 hUTP and ACR. Results 24 hUTP at (0.5-3.5) g/24 h, urinary N-acety1-β-D-glucosaminidase, kidney injury molecule-1, alpha 1 microglobulin, retinol-binding protein were correlated linearly with 24 hUTP. The correlation coefficients (adjusted R2) were 0.192, 0.079, 0.054 and 0.040 respectively. Proximal renal tubular injury markers had the highest correlation with 24 hUTP. Urinary N-acety1-β-D-glucosaminidase, kidney injury molecule-1, alpha 1 microglobulin and retinol-binding protein were correlated linearly with ACR. The correlation coefficients (adjusted R2) were 0.367, 0.058, 0.077 and 0.076 respectively with the best correlation between proximal tubular injury markers and ACR. Conclusions In DKD patients, renal tubular injury markers are correlated linearly with 24 hUTP and ACR. Proximal tubular injury markers have the best correlations with 24 hUTP and ACR. Renal tubular injury is correlated closely with the progression of DKD.
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spelling doaj.art-04e0c6e039704cc18351e29c95d06b9c2024-04-19T02:18:06ZzhoEditorial Department of Journal of Clinical NephrologyLinchuang shenzangbing zazhi1671-23902024-04-0124429730210.3969/j.issn.1671-2390.2024.04.00620230158Correlation between markers of renal tubular injury and proteinuria in patients with diabetic kidney diseasePu Yan0Ning Zhang1Tong-xia Li2Shi-wei Liu3Department of Nephrology & Endocrinology, Wangjing Hospital, China Academy of Chinese Medical Sciences, Beijing 100102, ChinaDepartment of Nephrology & Endocrinology, Wangjing Hospital, China Academy of Chinese Medical Sciences, Beijing 100102, ChinaDepartment of Nephrology & Endocrinology, Wangjing Hospital, China Academy of Chinese Medical Sciences, Beijing 100102, ChinaDepartment of Nephrology & Endocrinology, Wangjing Hospital, China Academy of Chinese Medical Sciences, Beijing 100102, ChinaObjective To explore the correlation between markers of tubular injury, 24 h urine protein quantification (24 hUTP) and albumin creatinine ratio (ACR) in patients with diabetic kidney disease (DKD) and explore the relationship between tubular and glomerular injuries to provide guidance for clinical management of DKD. Methods From November 1, 2019 to December 31, 118 proteinuric patients with a definite diagnosis of DKD at outpatient clinic and ward were recruited. And 24 hUTP, ACR, blood creatinine, urinary N-acety1-β-D-glucosaminidase, alpha 1 microglobulin, retinol-binding protein and kidney injury molecule-1 were measured and estimated glomerular filtration rate (eGFR) calculated by the CKD-EPI formula. Linear correlation analysis was utilized for examining the correlation between markers of proximal tubular injury, tubular reabsorption function and 24 hUTP and ACR. Results 24 hUTP at (0.5-3.5) g/24 h, urinary N-acety1-β-D-glucosaminidase, kidney injury molecule-1, alpha 1 microglobulin, retinol-binding protein were correlated linearly with 24 hUTP. The correlation coefficients (adjusted R2) were 0.192, 0.079, 0.054 and 0.040 respectively. Proximal renal tubular injury markers had the highest correlation with 24 hUTP. Urinary N-acety1-β-D-glucosaminidase, kidney injury molecule-1, alpha 1 microglobulin and retinol-binding protein were correlated linearly with ACR. The correlation coefficients (adjusted R2) were 0.367, 0.058, 0.077 and 0.076 respectively with the best correlation between proximal tubular injury markers and ACR. Conclusions In DKD patients, renal tubular injury markers are correlated linearly with 24 hUTP and ACR. Proximal tubular injury markers have the best correlations with 24 hUTP and ACR. Renal tubular injury is correlated closely with the progression of DKD.http://www.lcszb.com/cn/article/doi/10.3969/j.issn.1671-2390.2024.04.006diabetic kidney diseaserenal tubuleproteinuria
spellingShingle Pu Yan
Ning Zhang
Tong-xia Li
Shi-wei Liu
Correlation between markers of renal tubular injury and proteinuria in patients with diabetic kidney disease
Linchuang shenzangbing zazhi
diabetic kidney disease
renal tubule
proteinuria
title Correlation between markers of renal tubular injury and proteinuria in patients with diabetic kidney disease
title_full Correlation between markers of renal tubular injury and proteinuria in patients with diabetic kidney disease
title_fullStr Correlation between markers of renal tubular injury and proteinuria in patients with diabetic kidney disease
title_full_unstemmed Correlation between markers of renal tubular injury and proteinuria in patients with diabetic kidney disease
title_short Correlation between markers of renal tubular injury and proteinuria in patients with diabetic kidney disease
title_sort correlation between markers of renal tubular injury and proteinuria in patients with diabetic kidney disease
topic diabetic kidney disease
renal tubule
proteinuria
url http://www.lcszb.com/cn/article/doi/10.3969/j.issn.1671-2390.2024.04.006
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