Fig. 6.

Type-1 and Type-2 cytokine levels in mouse serum after irradiation. Three weeks after irradiation, IFN-γ (A) and IL-12 (B) were at maximum levels in the RT group, but their expression in serum from mice in the LRT group increased initially, then decreased rapidly and became stable. (C) The IL-13 level in serum from LRT group mice was higher than in the control RT group, and reached a maximum value. (D) IL-5 level in serum from LRT group mice was increased compared with that in the RT group. CpG-ODN treatment decreased IL-5 and IL-13 expression in the CRT group, whereas serum IL-12 and INF-γ increased at Day 7 and 14, respectively. Data are shown as mean ± SD. *P < 0.05.