Although L-FABP levels were significantly negatively correlated with eGFR and increased with proteinuria severity, markers of tubular damage do not appear to be predictors of decreased GER in patients with T2D (Kamijo-Ikemori et al., 2011; Chou et al., 2013; Fiseha, 2015). This evidence concerns the gene FABP1 and type 2 diabetes mellitus.