Figure 2. The expressions of TNF-α (A), IL-1β (B) and IL-6 (C) were all progressively elevated in the peripheral blood of Crohn’s disease patients carrying rs7158663 GG/rs322931 CC (N=76), rs7158663 AG+AA/rs322931 CC (N=62), rs7158663 GG/rs322931 CT+TT (N=36), and rs7158663 AG+AA/rs322931 CT+TT (N=32) genotypes (* P value < 0.05 vs. rs7158663 GG/rs322931 CC group; ** P value < 0.05 vs. rs7158663 AG+AA/rs322931 CC group; # P value < 0.05 vs. rs7158663 GG/rs322931 CT+TT group; 3 biological repeats).