HOMER1 and post-traumatic stress disorder: Similarly, we observed that PKA‐RIIS99, PKA‐CT197, and CREBS133 expression levels were down‐regulated in both groups after the knockdown of Homer1 at the protein level, but in the TBI +PTSD group, knockdown of Homer1 modulated protein decline more strongly than that of PTSD group (Figure 6C; Figure S7A, Supporting Information).