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NAC down-regulated the Nrf2 expression level in PDLSCs stimulated by cyclic mechanical stress. (A) Nrf2 mRNA were down-regulated with NAC under cyclic mechanical stress. (B) The cytosolic and nuclear Nrf2 protein levels were decreased with NAC. (C) NAC significantly inhibited the mRNA expression of HO-1 and NQO1. (D) NAC significantly inhibited the protein expression of HO-1 and NQO1. ∗P < 0.05 versus the control group, respectively.
