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Effect of DMF on apoptosis in MCF-7 cells. Cells were treated with different doses (0, 1, and 100 mM) of DMF for 72 hours. A, Flow cytometric analysis of cell apoptosis. B, The histogram shows the percentage of early apoptotic cells in different treatment groups. The experiment was repeated at least 3 times. Data represent the mean ±SD. n = 3, *P < .05; **P < .01. DMF indicates N,N-dimethylformamide; SD, standard deviation.
