Figure 1.

Baicalein selectively inhibits cell proliferation in breast cancer cell line MCF-7 and normal breast epithelial cell line MC-10A.

Notes: MCF-7 cells were treated with indicated concentrations of baicalein with or without CuCl₂ pretreatment for (A) 24 h and (B) 48 h, and MCF-10A cells for (C) 24 h and (D) 48 h, respectively. All data were expressed as the means ± SD of values from triplicate experiments. *P<0.05, **P<0.01 and ***P<0.001 versus untreated group; ^##P<0.01 for the significance between the groups with or without CuCl₂ pretreatment.