Figure 1. Effect of salvianolic acid B (SAB) on renal myeloperoxidase (MPO) levels in experimental groups. Data are reported as means±SD for 10 rats in each group. **P<0.01. a, ischemia-reperfusion (IR) group compared to the sham control group; b, treatment groups (SAB 20 and 40 mg·kg^-1·day^-1) compared to the IR group (ANOVA).