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Petrica L, Ursoniu S, Gadalean F, Vlad A, Gluhovschi G, Dumitrascu V, Vlad D, Gluhovschi C, Velciov S, Bob F, Matusz P, Milas O, Secara A, Simulescu A, Popescu R. Urinary podocyte-associated mRNA levels correlate with proximal tubule dysfunction in early diabetic nephropathy of type 2 diabetes mellitus. Diabetol Metab Syndr 2017; 9:31. [PMID: 28484521 PMCID: PMC5420400 DOI: 10.1186/s13098-017-0228-y] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/26/2017] [Accepted: 04/27/2017] [Indexed: 02/07/2023] Open
Abstract
AIM The study assessed mRNA expression of podocyte-associated molecules in urinary sediments of patients with type 2 diabetes mellitus (DM) in relation to urinary podocytes, biomarkers of podocyte injury and of proximal tubule (PT) dysfunction. METHODS A total of 76 patients with type 2 DM and 20 healthy subjects were enrolled in a cross-sectional study, and assessed concerning urinary podocytes, urinary mRNA of podocyte-associated genes, urinary biomarkers of podocyte damage and of PT dysfunction. RESULTS We found significant differences between urinary mRNA of podocyte-associated molecules in relation with albuminuria stage. In multivariable regression analysis, urinary mRNA of nephrin, podocin, alpha-actinin-4, CD2-associated protein, glomerular epithelial protein 1 (GLEPP1), ADAM 10, and NFκB correlated directly with urinary podocytes, albuminuria, urinary alpha1-microglobulin, urinary kidney-injury molecule-1, nephrinuria, urinary vascular endothelial growth factor, urinary advanced glycation end-products (AGE), and indirectly with eGFR (p < 0.0001, R2 = 0.808; p < 0.0001, R2 = 0.825; p < 0.0001, R2 = 0.805; p < 0.0001, R2 = 0.663; p < 0.0001, R2 = 0.726; p < 0.0001, R2 = 0.720; p < 0.0001, R2 = 0.724). CONCLUSIONS In patients with type 2 DM there is an association between urinary mRNA of podocyte-associated molecules, biomarkers of podocyte damage, and of PT dysfunction. GLEPP1, ADAM10, and NFκB may be considered additional candidate molecules indicative of early diabetic nephropathy. AGE could be involved in this association.
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Affiliation(s)
- Ligia Petrica
- Department of Nephrology, ‘Victor Babes’ University of Medicine and Pharmacy, Str. Iuliu Grozescu, No 6, Bl T27, Ap 10, Timisoara, Romania
- Centre for Translational Research and Systems Medicine, ‘Victor Babes’ University of Medicine and Pharmacy, Timisoara, Romania
- ‘Victor Babes’ University of Medicine and Pharmacy, Timisoara, Romania
- County Emergency Hospital, Timisoara, Romania
| | - Sorin Ursoniu
- Department of Public Health Medicine, ‘Victor Babes’ University of Medicine and Pharmacy, Timisoara, Romania
- ‘Victor Babes’ University of Medicine and Pharmacy, Timisoara, Romania
- County Emergency Hospital, Timisoara, Romania
| | - Florica Gadalean
- Department of Nephrology, ‘Victor Babes’ University of Medicine and Pharmacy, Str. Iuliu Grozescu, No 6, Bl T27, Ap 10, Timisoara, Romania
- ‘Victor Babes’ University of Medicine and Pharmacy, Timisoara, Romania
- County Emergency Hospital, Timisoara, Romania
| | - Adrian Vlad
- Department of Diabetes and Metabolic Diseases, Timisoara, Romania
- ‘Victor Babes’ University of Medicine and Pharmacy, Timisoara, Romania
- County Emergency Hospital, Timisoara, Romania
| | - Gheorghe Gluhovschi
- Department of Nephrology, ‘Victor Babes’ University of Medicine and Pharmacy, Str. Iuliu Grozescu, No 6, Bl T27, Ap 10, Timisoara, Romania
- ‘Victor Babes’ University of Medicine and Pharmacy, Timisoara, Romania
- County Emergency Hospital, Timisoara, Romania
| | - Victor Dumitrascu
- Department of Pharmacology, ‘Victor Babes’ University of Medicine and Pharmacy, Timisoara, Romania
- ‘Victor Babes’ University of Medicine and Pharmacy, Timisoara, Romania
- County Emergency Hospital, Timisoara, Romania
| | - Daliborca Vlad
- Department of Pharmacology, ‘Victor Babes’ University of Medicine and Pharmacy, Timisoara, Romania
- ‘Victor Babes’ University of Medicine and Pharmacy, Timisoara, Romania
- County Emergency Hospital, Timisoara, Romania
| | - Cristina Gluhovschi
- Department of Nephrology, ‘Victor Babes’ University of Medicine and Pharmacy, Str. Iuliu Grozescu, No 6, Bl T27, Ap 10, Timisoara, Romania
- ‘Victor Babes’ University of Medicine and Pharmacy, Timisoara, Romania
- County Emergency Hospital, Timisoara, Romania
| | - Silvia Velciov
- Department of Nephrology, ‘Victor Babes’ University of Medicine and Pharmacy, Str. Iuliu Grozescu, No 6, Bl T27, Ap 10, Timisoara, Romania
- ‘Victor Babes’ University of Medicine and Pharmacy, Timisoara, Romania
- County Emergency Hospital, Timisoara, Romania
| | - Flaviu Bob
- Department of Nephrology, ‘Victor Babes’ University of Medicine and Pharmacy, Str. Iuliu Grozescu, No 6, Bl T27, Ap 10, Timisoara, Romania
- ‘Victor Babes’ University of Medicine and Pharmacy, Timisoara, Romania
- County Emergency Hospital, Timisoara, Romania
| | - Petru Matusz
- Department of Anatomy and Embryology, ‘Victor Babes’ University of Medicine and Pharmacy, Timisoara, Romania
- ‘Victor Babes’ University of Medicine and Pharmacy, Timisoara, Romania
- County Emergency Hospital, Timisoara, Romania
| | - Oana Milas
- Department of Nephrology, ‘Victor Babes’ University of Medicine and Pharmacy, Str. Iuliu Grozescu, No 6, Bl T27, Ap 10, Timisoara, Romania
- ‘Victor Babes’ University of Medicine and Pharmacy, Timisoara, Romania
- County Emergency Hospital, Timisoara, Romania
| | - Alina Secara
- Department of Nephrology, ‘Victor Babes’ University of Medicine and Pharmacy, Str. Iuliu Grozescu, No 6, Bl T27, Ap 10, Timisoara, Romania
- County Emergency Hospital, Timisoara, Romania
| | - Anca Simulescu
- Department of Nephrology, ‘Victor Babes’ University of Medicine and Pharmacy, Str. Iuliu Grozescu, No 6, Bl T27, Ap 10, Timisoara, Romania
- County Emergency Hospital, Timisoara, Romania
| | - Roxana Popescu
- Department of Cellular and Molecular Biology, ‘Victor Babes’ University of Medicine and Pharmacy, Timisoara, Romania
- ‘Victor Babes’ University of Medicine and Pharmacy, Timisoara, Romania
- County Emergency Hospital, Timisoara, Romania
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