Figure 4: Effects of LDR on renal Nrf2 expression in diabetic mice. Animals were treated and renal tissues were collected as described in Figure 2. The localization of Nrf2 expression in the kidney was examined by immunochemical staining (a) and the expression of Nrf2 were detected by western blotting (b) followed with quantitative analysis (c). Data was presented as mean ± SD.       versus Control; versus DM.