Figure 1.

Effect of drinking hydrogen water (HW) on proinflammatory, T helper (Th) 1, and Th2 cytokines. Mice administered with HW significantly decreased Dermatophargoides farinae extract had (DfE-)induced cytokines IL-10 (a), GM-CSF (b), IL-12p70 (c) and TNF-α (d) levels. IL-2 (e) and IL-4 (f) did not differ significantly between HW and purified water (PW) groups. Data are mean ± SD, n = 12. *P < 0.05, **P < 0.01, and ***P < 0.001 indicate significant differences tested with ANOVA. Tukey's test was used for post hoc tests.