FIGURE 5.
Inhibitory effects of the preliminarily separated fractions and the secondary separated fractions of SMI obtained by HPLC on the OATP1B1/1B3 mediated uptake of OPD (8 μM). The series of concentrations of SMI-3, SMI-1+2+3+4, and SMI-3-1 were presented in terms of that of Rb1, SMI-3-3 in terms of Re. SMI-2 and SMI-1+2+4 in terms of dilution factors. The uptake of OPD was calculated by subtracting the uptake in control cells from that in transporter-expressing cells, and the results were shown as the percentage of the control (mean ± SD, n = 3). “∗” represents p < 0.05, “∗∗” represents p < 0.01 compared to the control group.
