• Int J Med Sci · Jan 2020

    Observational Study

    FABP1 and FABP2 as markers of diabetic nephropathy.

    • I-Ting Tsai, Cheng-Ching Wu, Wei-Chin Hung, Thung-Lip Lee, Chin-Feng Hsuan, Ching-Ting Wei, Yung-Chuan Lu, Teng-Hung Yu, Fu-Mei Chung, Yau-Jiunn Lee, and Chao-Ping Wang.
    • Department of Emergency, E-Da Hospital, Kaohsiung 82445 Taiwan.
    • Int J Med Sci. 2020 Jan 1; 17 (15): 2338-2345.

    AbstractBackground: Diabetes mellitus is the leading cause of diabetic nephropathy and a major public health issue worldwide. Approximately 20-30% of patients with type 2 diabetes mellitus (T2DM) have renal impairment. Fatty acid-binding protein 1 (FABP1) is expressed in renal proximal tubule cells and released into urine in response to hypoxia caused by decreased peritubular capillary blood flow, and FABP2 is responsible for the transport of free fatty acids in the intestinal endothelium cells. There is increasing evidence that FABP1 and FABP 2 play a role in the development and progression of chronic kidney disease. The aim of this study was to investigate the relation of circulating FABP1 and FABP2 levels to nephropathy in patients with T2DM. Methods: For this study, 268 subjects with T2DM who were enrolled in a disease management program were stratified according to urinary microalbumin and serum creatinine measurements. The plasma FABP1 and FABP2 concentrations were examined by enzyme-linked immunosorbent assay. Demographic and potential metabolic confounding factors were analyzed with logistic regression to calculate the effects of FABP1 and FABP2 levels on diabetic nephropathy. Results: The FABP1 and FABP2 levels increased in parallel with the advancement of diabetic nephropathy. Increasing concentrations of FABP1 and FABP2 were independently and significantly associated with diabetic nephropathy. Multiple logistic regression analysis revealed FABP1 and FABP2 as an independent association factor for diabetic nephropathy, even after full adjustment of known biomarkers. Furthermore, receiver operating characteristic curve analysis showed that a FABP1 level of >33.8 ng/mL and a FABP2 level of >2.8 ng/mL were associated with diabetic nephropathy. Conclusion: Our results suggest that FABP1 and FABP2 may be novel biomarkers of diabetic nephropathy.© The author(s).

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