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Treatment with PSO (A) and RA-RF (B) reduced ROS levels in TNF-α-treated A549 cells. All assays were performed in triplicate; data are presented as mean ± standard deviation (### p < 0.001 vs. the control group; * p < 0.05, ** p < 0.01, *** p < 0.001 vs. (+) TNF-α induced group).
