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The increased expression of Nrf2 in the PDL at the tension side in orthodontic rats with t-BHQ treatment. (A) T-BHQ, the Nrf2 activator, could promote Nrf2 expression in the PDL at the tension side in orthodontic rats through IHC staining. The scale bars, 20 and 50 µm. (B) The mean integrated optical density (IOD)/Area of Nrf2 was quantified through Image-Pro Plus 6.0 software. N = 3 specimens in each group.
