FABP1 and metabolic dysfunction-associated steatohepatitis: Fatty acid binding protein-1, which is protective against the detergent effects of excess fatty acids, was underexpressed in NASH-mild versus simple steatosis (73%, p < 0.001), NASH-progressive versus NASH-mild (81%, p < 0.001), and NASH-progressive versus obese normal (59%, p < 0.001) [74].