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The tea extract inhibited HT-29 cell-cycle progression. HT-29 cells were treated with 0.2 mg/mL extracts of different tea samples 03Y, 07Y, 11Y, 15Y and 19Y for 24 and 48 h, respectively (A,C). The phase ratios of total cell cycle in each group were examined using flow cytometry (B,D). One-way ANOVA analysis was performed between the treatments of multiple tea samples. The different lowercase letters (a, b, c, d) in the same group show the significant differences at p < 0.05 level.
