Fig. 5.

(A) MCF-7 cell proliferation inhibitory effects of (A) oxoglaucine, protopine and berberine in Yuanhu; (B) osthole, isopimpinellin and palmitic acid in Baizhi; (C) positive control drug GFT. (D) IC₅₀ comparison of GFT, oxoglaucine, protopine, berberine, osthole, isopimpinellin and palmitic acid. Statistical differences were estimated with Student’s t-test (*p < 0.05 was taken as statistically significant and **p < 0.01 was considered as dramatically significant vs. the negative control, n = 3).