Fig. 2From: Helveticoside is a biologically active component of the seed extract of Descurainia sophia and induces reciprocal gene regulation in A549 human lung cancer cellsUHPLC chromatograms of EEDS and helveticoside. EEDS (80Â % ethanol extract), ethyl acetate fraction of EEDS, and helveticoside were analyzed at (a) UV 254Â nm and (b) 220Â nm.Back to article page