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Effect of tea polyphenol (TP) on hydrogen peroxide (H2O2)-induced NFE2L2 mRNA abundance in bovine mammary epithelial cells (BMEC). The BMEC were pretreated with TP (0 to 100 µg/mL) for 12 h and then treated with H2O2 (600 µM) for 6 h. Nuclear factor-erythroid 2-related factor 2 (NFE2L2) mRNA abundance was analyzed by quantitative real-time PCR. Means with different superscript letters differ (P < 0.05). There were 5 replications for each experiment and each well.
