NFE2L2 and diabetes mellitus: The result showed that, compared with control rats, miR-503 was significantly increased, and Nrf2, MDA, and HO-1 were significantly decreased in diabetes rats; however, compared with diabetes rats, miR-503 was significantly decreased, and Nrf2, MDA, and HO-1 were significantly increased in treatment rats (Figures 3(a)–3(f)).