Figure 8. DHC prevented TNF-α- induced activation of NF-κB. Cells were stimulated with TNF-α (10 ng/ml) in the presence or absence of 10 and 20 μM for 24 h. (A). Nuclear levels of NF-κB p65; (B). Luciferase activity of NF-κB (****, P<0.0001 vs. vehicle group; $$, $$$$, P<0.01, 0.0001 vs. TNF-α treatment group).