Compared with the BD+Saline group, the expression of the genes encoding TNF-α, IL-1β, IL-6, and IL-8 in the duodenum (Figure 2D), jejunum (Figure 2E), and ileum (Figure 2F) were significantly increased in the BD+ETEC group (P<0.05). This evidence concerns the gene CXCL8 and Behcet disease.