Figure 7. Effect of SM on viability of MCF-7 cells. Cell proliferation was carried out as described in the Materials and Methods. Results are expressed relative to the growth of cells treated with 1% dimethylsulfoxide (DMSO). Data are the mean ± standard deviation of quadruplicate analyses, expressed relative to that of treatment with 0.1% DMSO. ***p < 0.001, *p < 0.05 compared to Con; ###p < 0.001, compared to SM or 0.01 μM E2.