On the other hand, IL6 is a proinflammatory cytokine which is implicated in PTSD [53, 54], whereas ATP6V1F is involved in regulation of luminal or extracellular acidification, a crucial process for the normal physiological function of several organs [55] and is implicated PTSD [56, 57], including in our previous study [10]. This evidence concerns the gene IL6 and post-traumatic stress disorder.