FKBP5 and post-traumatic stress disorder: While the evidence suggesting the direct effects of the current candidate miRNAs on FKBP5 protein expression levels within the prefrontolimbic regions is scarce, we cautiously suggest that miRNAs clustered into composite markers 1 and 2 may play a distinct role in PTSD patients through their response to altered FKBP5 protein expression in PTSD condition.