Elevation in peripheral inflammatory cytokines were also seen in other psychiatric disorders such as: IL-6, TNF-α and TGF-β in acute psychosis;21 IL-2R22 and IL-623,24 in schizophrenia; IL-1β25,26, IL-6 and TNF-α26 in panic disorders; IL-1β and TNF-α in obsessive compulsive disorders27, and IL-1β, IL-6 and TNF-α in post-traumatic stress disorder (PTSD)28,29. The gene discussed is TNF; the disease is post-traumatic stress disorder.