Furthermore, analyzing transcriptomic data from hippocampus of mice exposed to stress, Bian et al. identified that WNT signaling pathway genes (CYP1A2, SYT1 and NLGN1) were dysregulated in these mice indicating that this signaling pathway could be involved in PTSD (Bian et al. 2019). This evidence concerns the gene CYP1A2 and post-traumatic stress disorder.