FABP1 and Nephropathy: In addition, the effective markers of kidney damage, including β2-microglobulin (β2-MG), urinary liver fatty acid-binding protein (L-FABP), and N-acetyl-β-D-glucosaminidase (NAG) for tubular damage, as well as urinary albumin-creatinine ratio (ACR) for glomerular damage, were significantly correlated with the PAC (136).