IL2 and psoriasis: The concentration of IL-2 (↑10.91%, p = 0.007; ↑33.64%, p < 0.0001, respectively) and INF- γ (↑33.11%, p ≤ 0.0001; ↑57.34%, p ≤ 0.0001, respectively) in NWS of psoriasis patients with normal and decreased saliva secretion was significantly higher than in the control group.