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Effect of curcumin on the CCl4 treatment-induced expressions of Nrf2, TGF-β1 and Smad3 proteins. (A) Nrf2 (total), TGF-β1 and Smad3 protein expression were examined using the western blot and analyzed using Image J software. (B) Nuclear Nrf2 protein expression was examined using the western blot and analyzed using Image J software. Data are shown as mean ± S.D. (n = 3). ** p < 0.01, compared to the control group; ## p < 0.01, compared to the solely CCl4 treatment group.
