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Change in the expression of cell cycle inhibitor, p27kip1 in HT 29 cells treated with hydrogen peroxide and delphinidin for 12 h. Human colon carcinoma HT 29 cells (nonfunctional p53) were exposed to various doses of H2O2 and delphinidin for 12 h, followed by determination of p27kip1 level by Western blot. Data are representative of three independent experiments as mean ± SD. Values on bars not sharing a common superscript significantly differ from each other (P < 0.05).
