Figure 7. Netrin-1 prevented activation of the TLR4/NF-κB signaling in the lung tissue in LPS- challenged ALI mice. (A) The levels of TLR4; (B) Levels of nuclear NF-κB p65 were measured by western blot analysis (††P < 0.01 vs. vehicle group; **P < 0.01 vs. LPS group).