Cardiac and Vascular Synergic Protective Effect of Olea europea L. Leaves and Hibiscus sabdariffa L. Flower Extracts
Effect of OEE, HSE, and their mixture on cell viability in HUVECs exposed to H2O2. HUVECs were treated with OEE, HSE, and their mixture (0.05–100 μg/mL) for 24 h; oxidative damage was then induced exposing the cells to 150 μM H2O2 for 3 h and cellular damage was assessed by both MTT assay ((a), (b), and (c)) and flow-cytometry analysis ((d), (e), and (f)). Data are reported as percent cell viability in comparison to control cells. Each bar represents the mean ± S.D. of four independent experiments. with respect to H2O2-treated cells, with respect to control cells.
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