Serum and peritoneal irrigation fluid concentration of inflammatory cytokines. A-D. The concentration of IL-1β, IL-6, TNF-α, and pGE2 in peripheral blood of mice. E-H. The concentration of IL-1β, IL-6, TNF-α, and pGE2 in peritoneal irrigation fluid of mice. **denotes P<0.01, compared with Sham group, ##denotes P<0.01, compared with Model group. n=3.