Figure 2.

Biological activity of synthesized (R)- and (S)-DHPV. (A) The effects of 1b (R)-DHPV (25 μM) and 1a (S)-DHPV (25 μM) on the phosphorylation and degradation of IκBα were determined by Western blot analysis in IEC-6 cells exposed to lipopolysaccharides (LPS; 10 ng/mL) for 1 h. (B) The effect of 1a (S)-DHPV on the expression of phosphorylation and degradation of IκBα was analyzed dose dependently by Western blot analysis in LPS (10 ng/mL)-treated IEC-6 cells.