NFKB1 and acute respiratory distress syndrome: The results showed that the expression levels of NF-κB p65, iNOS, and the ratio of NF-κB p50 to NF-κB p105 in LPS-induced ALI mice were increased significantly, and the expression level of IκBα was decreased; administration of FOL showed an inhibiting effect on the ratio of NF-κB p50 to NF-κB p105 as well as the expression level of NF-κB p65.