TNF and infection: Compared with the CΔhtpG group, the relative expression of TNFα, IL-1β, and IL-18 was significantly reduced (p < 0.05), the relative expression of iNOS was significantly reduced (p < 0.01), and the relative expression levels of TNFα, IL-1β, and IL-18 in the ΔhtpG group were significantly lower than those in the WT infection group (p < 0.05).