Figure 1.

Davallia formosana (DF) ethanol extract (DFE) suppresses prostate cancer (PCa) cell growth. (A) LNCaP and (B) C4-2 cells were treated with vehicle or DFE (10, 20, 40, 80, and 160 µg/mL) for 24 and 48 h. PCa cell growth was determined by MTT analysis. The relative cell growth (%) was shown as 100 in vehicle-treated PCa cells at each time point and each cell line. Data represented as the mean ± SD of three independent experiments. * p < 0.05, ** p < 0.01, *** p < 0.001.