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Cytotoxicity evaluation of HS and EX in HCT-8 cells after 24, 48, and 72 h treatment by performing classic MTT assay. The data represent the mean ± standard deviation (SD) of three independent experiments. The graph showed survival of HCT-8 cells above the reference threshold up to the concentration of 2.5 mg/mL at 72 h for both HS and EX.
