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Microscopic photographs of control HeLa cells by DAPI staining. Apoptotic HeLa cells resulting from the treatment with 30, 40 and 50 μg of vitexin and isovitexin are represented as (a) control HeLa cells without sample treatment, (b, d and f) (30, 40 and 50 μg of vitexin) and (c, e and g) (30, 40 and 50 μg of isovitexin), respectively.
