Fig. 9From: Antioxidant activity and cytotoxicity of Jerusalem artichoke tubers and leaves extract on HaCaT and BJ fibroblast cellsEffects of 50 μg·mL− 1and 500 μg·mL− 1 ethanolic Helianthus tuberosus L. tubers and leaves extracts on SOD-1 and Nox-4 expression in cultured fibroblast cells following 24 h of exposure. mRNA expression was normalized to GADPH. The plot is presented in a log2 scale, thus positive values indicate overexpression while negative values indicate underexpression. The data are expressed as the mean ± SD of three independent experiments, each of which consisted of three replicates per treatment groupBack to article page