Fig. 7From: Antioxidant activity and cytotoxicity of Jerusalem artichoke tubers and leaves extract on HaCaT and BJ fibroblast cellsThe effect of increasing concentrations ethanolic Helianthus tuberosus L. leaves extracts (25, 50, 100, 250, 500 μg·mL− 1) on the DCF fluorescence in keratinocytes cells. Medium with 1 mM hydrogen peroxide (H2O2) was used as a positive control. 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