According to the study, the rs6265*A allele of the BDNF gene, rs4839435*A minor allele of the NGF gene, rs734194*T minor allele frequency in NGFR gene, and the rs1063169*T minor allele of the FOS gene were more frequent in controls as compared to PTSD patients, while the rs1366116*T minor allele of the CPLX2 gene, rs6330*T allele of the NGF gene, the rs6330*T minor allele (CT + TT), and the rs7101*T allele of the FOS gene were more frequent in PTSD patients as compared to the controls [94]. This evidence concerns the gene FOS and post-traumatic stress disorder.