Identification of Six Flavonoids as Novel Cellular Antioxidants and Their Structure-Activity Relationship

Figure 3

The rate and structures of the compounds 2 (a, g, p), 5 (b, h, q), 8 (c, i, r), 10 (d, j, s), 13 (e, k, t), and 32 (f, o, u) of PC value on the activities of antioxidant enzymes. The activities of CAT, SOD, and GSH-Px of the PC were , , and protein, respectively. The activities of CAT, SOD, and GSH-Px of the NC were , , and protein, respectively. The data are presented as the mean with standard deviation (SD) bar of three replicates. The values having no letters in common are significantly different ().