APOA4 and kidney disorder: Some biomarkers such as kidney injury molecule (KIM-1) (64), neutrophil gelatinase-associated protein (NGAL) (65), apolipoprotein A-IV (apoA-IV) (66), soluble TNFα receptor 1 (TNFR1) (67), and soluble urokinase receptor (suPAR) (68) have been evaluated as potential biomarkers of kidney disease progression.