The PTSD group also displayed elevated protein levels in the PFC and hippocampus of IL-1β, F(3,4) = 53.04, p < 0.05 and F(3,4) = 22.15, p < 0.05 (Figures 5A,B) and TLR4, F(3,4) = 25.78, p < 0.05 and F(3,4) = 43.14, p < 0.05 (Figures 5C,D). Here, IL1B is linked to post-traumatic stress disorder.