sentence: In contrast to what was found in the spinal cord , this treatment did not change the CCI-induced increased protein levels of p-I κ B α ( F ( 2,12 ) = 10.37 , p < 0.002 , one-way ANOVA vs. the sham-operated mice treated with vehicle ; Figure 8E ) in the prefrontal cortex.Our data demonstrated a significant decrease in the expression of Nrf2 ( F ( 2,12 ) = 14.41 , p < 0.001 , one-way ANOVA vs. the sham-operated mice treated with vehicle ; Figure 9A ) and HO-1 ( F ( 2,12 ) = 9.20 , p < 0.004 , one-way ANOVA vs. the sham-operated mice treated with vehicle ; Figure 9B ) in the prefrontal cortex of the CCI-injured mice , and these changes were normalized by oltipraz .