Fig. 10

(a) Effect of treatment with poncirin on protein expression of Nrf2, (b) HO-1 and (c) SOD2 in mice paw tissue. Each column represents the means ± SEM of 6–7 mice per group. *p < 0.05, **p < 0.01 and ***p < 0.001 denote the significant differences from the negative control group