Research Article

Bioavailable Concentrations of Delphinidin and Its Metabolite, Gallic Acid, Induce Antioxidant Protection Associated with Increased Intracellular Glutathione in Cultured Endothelial Cells

Figure 9

Total GSH concentration (a, b), SOD activity (c, d), and catalase activity (e, f) in HUVECs treated with delphinidin (Del; a, c, and e) and gallic acid (GA; b, d, and f) at concentrations of 1 μM and 100 nM, measured at 24 h. Values are shown as mean ± SEM (); , , and indicate the difference from oxidising agent treatment (one-way ANOVA with Dunnett’s posttest).
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