STAT3 and post-traumatic stress disorder: Moreover, the very few available reports on IL10 level in PTSD is not convincing.38, 39, 40, 41, 42, 43 Nevertheless, it appears that IL10 expression level is more in individuals who are resilient to PTSD development.44 Therefore, it further supports our hypothesis that STAT3 is probably having a pro-inflammatory role in PTSD.