GABRA6 and post-traumatic stress disorder: Further analysis of cell subsets according to the expression levels of different markers in neurons (Figure 2B) showed that cortical gamma‐aminobutyric acid type A receptor subunit alpha6 (Gabra6)+ neurons were significantly increased in mice of TBI+PTSD group compared with that of other groups, suggesting that TBI may play a role in promoting PTSD formation through Gabra6+ neurons (Figure 2C).