Figure 2.

Pgp expression in KB-V1 cells cultured in 1, 5, and 10 μM commercial grade curcuminoid mixtures for 3 days The Pgp protein level was determined by Western blotting using Mab F4 (top), and quantified by laser densitometry (bottom). Data are the mean value ± SEM of three independent experiments. Key: (*) significantly different from the vehicle control (P < 0.05).