NFKB1 and tuberculosis: The expression level of LBP in XB piglets was up-regulated (p < 0.05) at 24 days of age than that in the TB and DR piglets, while the NF-κB at 10 and 21 days of age and IL-1β at 1 day of age were down-regulated (p < 0.05) in the TB piglets than those of the XB and DR piglets.