SOD2 and diabetes mellitus: As shown in Figure 2A–C, the mRNA expression of antioxidative stress proteins, including catalase (CAT), superoxide dismutase 1 (SOD1), and superoxide dismutase 2 (SOD2), was downregulated in DM mice kidneys, and treatment with Myr significantly inhibited the downregulation of these markers (Figure 2A–C).