Effect of 48 h treatment of baicalein on expression of apoptosis-related proteins in CNE1 and CNE2. Western blot analysis of apoptosis-related proteins (Mcl-1, Bcl-xl, Bax, Bad, caspase 3, 8, and 9) in the extracted proteins from cells was performed after CNE1 cells were treated with 25 μM, 50 μM baicalein, or 40 μM DDP for 48 h. (a) Examples of Western blots; (b) fold increase in Mcl-1, Bcl-xl, Bax, Bad; (c) fold increase in caspase 3, 8, and 9. Data are expressed as mean ± SEM. *p < 0.05 compared to control.