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Plasma levels of tissue inhibitor of metalloproteinase-1 in patients with type 1 diabetes mellitus associate with early diabetic neuropathy and nephropathy
Authors
N. Papadopoulou-Marketou Whiss, P.A. Eriksson, A.C. Hyllienmark, L. Papassotiriou, I. Wahlberg, J.
Publication date
1 January 2021
Publisher
Abstract
Background: Tissue inhibitor of metalloproteinase-1 (TIMP-1) has been suggested as a marker for abnormal regulation of tissue remodelling in type 1 diabetes. Metalloproteinase-9 (MMP-9) has been associated with matrix turnover, and Neutrophil gelatinase associated lipocalin (NGAL) is a marker of tubular injury in diabetic nephropathy. The aim was to analyse these biomarkers to unmask early diabetic complications. Methods: Thirty-three type 1 diabetes patients, aged 20–35 years, and disease duration 20 ± 5.3 years were included. Along with clinical examination, neurophysiological measurements, routine biochemistry, plasma concentrations of TIMP-1, MMP-9 and NGAL were determined with immunoenzymatic techniques. Results: TIMP-1 correlated with abnormal unilateral and bilateral vibratory sense foot perception (r = −0.49 and r = −0.51, respectively), foot neuropathy impairment assessment score (NIA; r = −0.55), neuropathy symptom assessment score (r = 0.42), microalbuminuria (r = 0.50) and eGFR (r = −0.45). MMP-9 correlated with impaired foot NIA (r = 0.51). Multiple regression analysis showed an association for TIMP-1 (p = 0.004) with impaired neurophysiological examinations and renal dysfunction along with NGAL (p = 0.016 and p = 0.015 respectively). Conclusions: This study suggests that plasma levels of TIMP-1, MMP-9 and NGAL may serve as useful biomarkers in unravelling subclinical neuropathy and nephropathy in type 1 diabetes. © The Author(s) 2021
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Last time updated on 10/02/2023