Effect of polyphenol-rich plant extracts on the expression of SOD and NF-κB genes from preadipocytes exposed to H
TNFα or LPS. Cells were treated with H2O2 (200 μM), TNFα (5 ng/mL) or E. coli LPS (1 μg/mL) in the presence or not of each plant extract (25 μM GAE) for 24 h. Then, the relative expression of SOD (a) and NF-κB (b) genes was measured by RT-QPCR and normalized against the expression level of GAPDH gene. Data are means ± SEM of three independent experiments. *: p < 0.05, **: p < 0.01, ***: p < 0.001 as compared to H2O2, TNFα or LPS.