Figure 5. OXA influences on Nrf2/HO-1 signal pathway in injured peripheral cortex in TBI model rats. (A) Typical western blot bands. (B–D) Quantification of relative expression levels of HO-1, NRF2 and NQO1. Statistical data are shown in mean ± SEM. *P < 0.05, **P < 0.01, ***P < 0.001.