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The nuclear morphology of the HT29 cancer cell line was examined by double staining of Hoechst 33342/propidium iodide and fluorescence microscopy at ×630. The cells were treated with 8 μM, 14 μM, or 28 μM rutamarin for 48 h. The arrows indicate: (1) Viable cells with normal nuclei, (2) live cells with apoptotic nuclei, (3) dead cells with apoptotic nuclei, and (4) dead cells with normal nuclei
