Figure 4. Nuclear morphological change after MP [4-(3′,3′-dimethylallyloxy)-5-methyl-6-methoxyphthalide] treatment. DAPI staining of HeLa cells treated without or with 40 μg/mL MP for 12 and 24 h shows chromatin condensation and nuclear fragmentation. The control was treated with 0.05% DMSO for 24 h.