Additionally, consistent with our findings is that despite examining a different regulator region of FKBP5 than our study (exon 1 promoter vs. intron 7 GRE in our study) both of these investigations showed that changes in methylation were related to better symptom response with corresponding measures of increased gene expression identified in the study of PTSD response to exposure therapy (24). Here, FKBP5 is linked to post-traumatic stress disorder.