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Effects of PNP and PS on Nrf2 activation status. Immunoblot (A) and densitometric (B) analysis of Nrf2 protein in cytoplasm and nuclei. β-actin and H3 were used as cytosolic and nuclear loading controls, respectively. The test was repeated three times, representative blots are shown. *P < 0.05, **P < 0.01 versus the corresponding control; #P < 0.05 versus corresponding PNP + PS group.
