Figure 7From: Antioxidant potential of Sutherlandia frutescens and its protective effects against oxidative stress in various cell cultures Dose response curves to compare the effects of SFE on cell viability in A549, CHO, and HepaRG cell lines. These cell lines were treated with various doses of SFE for 24 h and viability was determined by Calcein AM assay. Values represent mean ± SD (n=5).Back to article page