The investigators performed randomized, double-blind, placebo-controlled human trial to evaluate the efficacy and safety of Cordyceps sinensis mycelium culture extract (Paecilomyces hepiali, CBG-CS-2) on promotion of immunity. The investigators measured promotion of immunity parameters , including Cytotoxicity, Cytokine (IL-1β, IL-2, IL-4, IL-10, IL-12, IFN-γ, TNF-α).
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