SOD2 and metabolic dysfunction-associated steatotic liver disease: Furthermore, Perlemuter et al. measured the activities of some antioxidant enzymes including cytosolic and mitochondrial superoxide dismutases (Cu/Zn-SOD and Mn-SOD), glutathione peroxidase and catalase as well as the levels of lipid peroxidation products in liver tissue and erythrocytes from NAFLD patients in comparison with the control group (11).