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Morphology of cell nuclei in TPC-1 and FTC-133 cells treated with PV, observed by Hoechst 33342 and AO/EB staining. Control 1, TPC-1 untreated group; TPC-1, TPC-1treated group; control 2, FTC-133 untreated group; and FTC-133, FTC-133 treated group. AO/EB, acridine orange/ethidium bromide; PV, Prunella vulgaris.
