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SRB assay on HEK293 cells to evaluate the effect of the four plant extracts: (A) XA, (B) IC, (C) EG and (D) DP on the cell growth after 48 h (X-axis: log concentrations of extracts from 1 to 200 (µg/mL) and Y-axis: the percentage of normalized absorbance). Values are mean ± SD of three independent experiments.
