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Effect of hyperoxia on DNA repair genes. Four stably transfected BEAS-2B cell lines Ctr, CMV-NQO1, NQO1-NQO1, and SNP were incubated in RA or O2 for 48 h and subjected to qPCR. ∗Statistically significant difference between RA and O2 groups. †Statistically significant difference compared to Ctr. ‡Statistically significant difference between NQO1-NQO1 and SNP (n = 3; P < 0.05).
