Effect of YQQRG on podocin expression. Podocin expression is evaluated by Western blot. The upper panel indicates the original band observed by Western blot. The lower panel displays semi-quantitative results. Rats in the PAN + YQ group received a daily oral gavage of YQQRG. Rats in the sham and PNA groups received the same volume of vehicle (distilled water). 10D, 10 days after PAN injection; 15D, 15 days after PAN injection. Data are presented as mean ± SD values for each group of 3 animals. **P < 0.01 compared to sham group, respectively. #P < 0.05 and ##P < 0.01 compared with PAN group, respectively.