HAVCR1 and obesity due to melanocortin 4 receptor deficiency: For this purpose, tubular injury biomarkers, such as kidney injury molecule-1 (KIM-1), N-acetyl-β-D-glucosaminidase (NAG), neutrophil gelatinase-associated lipocalin (NGAL), and netrin-1, were recently investigated in patients with obesity [26,27].