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PC-induced relative protein levels of Keap1 in MODE-K cells. (a) Cells were treated with 0, 1, 2.5, and 5 μg/mL PC for 24 h. All tests were repeated at least three times. (b) Cells were treated with 5 μg/mL PC for 0, 3, 6, 12, and 24 h. All tests were repeated at least three times. “∗” represents P < 0.05 compared with the control group, and “∗∗” represents P < 0.01 compared with the control group.
