In contrast, expression levels of CB1 and DAGLα mRNA in the ZZX-M and ZZX-H group and the level of CB1 mRNA in the PX group were significantly increased compared with the PTSD group (p < 0.01, p < 0.05) (Figures 9A,B), while expression levels of FAAH and MAGL mRNA in the ZZX-M and ZZX-H groups and the level of FAAH mRNA in the PX group were significantly decreased (p < 0.01, p < 0.05) (Figures 9C,D). Here, CNR1 is linked to post-traumatic stress disorder.