NFKB1 and hydrops fetalis: To detect whether HF could attenuate NF‐κB/p65 activity in HCC, the expression of p‐IKBα, IKBα, p‐p65 and p65 after treatment with various concentrations of HF (20, 40 and 60 μmol/L) for 48 hours was detected with Western blotting.