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Catalase activity is enhanced in NHBE cells exposed to DE. NHBE cells were exposed to media, media+5% DE, NAC, NAC+5% DE, sorrel, and sorrel+5% DE (7 h). After exposure, cells were lysed and protein was extracted. Catalase activity was measured via its reaction rate with hydrogen peroxide. ∗∗∗p < 0.001 compared to media. Data are presented as the mean ± SEM, n = 3.
