Figure 6.

Effects of ethanolic extracts of Artemisia annua L. on SH-SY5Y cell viability. The bars indicate the percent cell viability of cells treated with (A) artemisinin standard; (B) phyto-extracts of AA in 25% ethanol; (C) phyto-extracts of AA in 50% ethanol; and (D) phyto-extracts of AA in 90% ethanol with the indicated concentrations (ranging from 25 μg/mL to 5 ng/mL) for 48 h and subjected to an MTT assay. Phyto-extract treatments were performed so that the ART content within the phyto-extracts was at the same concentration of STD Artemisinin. This estimation was calculated based on the phyto-extract ART quantification by HPLC. Data are representative of three replicates and shown as mean ± standard deviation; *** p < 0.001 vs. control group; ** p < 0.005 vs. control group.