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Effects of QF in TNF-α stimulated BEAS-2B cells. (A) IL-6 expression and (B) IL-8 expression determined by ELISA; (C) NF-κB activation detected by luciferase activity analysis; (D) IκB-α protein degradation analyzed by western blot. The values shown are mean±SD of 5 independent experiments; *P<0.05 and **P<0.01 vs. model group (n=5).
