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Comparison of the effects of compounds 1–3 on the expression of apoptosis-related proteins in MCF-7 cells. (A) Expression of cleaved BID, caspase-8, Bax, Bcl-2, cleaved caspase-3, cleaved caspase-9, and PARP in MCF-7 cells. Compound 1: emodin, compound 2: rhapontigenin, compound 3: chrysophanol 1-O-β-d-glucopyranoside. (B) Each bar graph shows the densitometric quantification of the corresponding western blotting bands. * p < 0.05 compared with control value.
