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Figure 1: Effect of piperine on viability of human breast cancer cells by sulforhodamine B assay. MCF-7 and MDA-MB-231 cells were treated with various concentrations of piperine (A and C) and doxorubicin (B and D) for 24-72 h. Data are presented as mean±SE. n=3, *P<0.05 compared with untreated control. |
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