The effect of different active extracts on cell viability, cellular antioxidant enzymes (Cu/Zn-SOD, Mn-SOD, GSH-Px and CAT) activities and MDA content in MRC-5 cells subjected to H₂O₂-induced oxidative stress.

Data were means ± standard deviation (n = 3). a-gDifferent letters within the same column indicated that means were statistically different at P<0.05. #TS: the theoretical sum of the antioxidant enzyme activity or MDA content of respective constituent extract with their proportion being 1:1 in the combinations.