... surfaces (e.g.,skin, lining of the intestine) against bacteria, and plays acritical role in chronic intestinal inflammation [24,25].The unchanged IL-17 and IL-23 levels in CFS noted in thisstudy ... evaluation tool in Clinical Med-icine. Clin Chem 1993, 39:561-577.23. Waldmann TA: The biology of interleukin-2 and interleukin-15: implications for cancer therapy and vaccine design.Nature ... 16 plasma factors including the pro -inflammatorycytokines: tumor necrosis factor α (TNFα), lymphotoxin α (LTα), interleukin (IL) - IL-Iα, IL-1β, IL-6; TH1 cytokines: interferon γ (IFNγ), IL-12p70,...