SOD1 and diabetes mellitus: The C + CNME group also had lower MDA levels (DM: 3.49 ± 0.39 vs. C + CNME: 1.60 ± 0.41 nmol/mg protein; p = 0.0096) and higher SOD activity (DM: 1.25 ± 0.18 vs. C + CNME: 2.84 ± 0.36 U/mg protein; p = 0.0156) compared to the untreated DM group.