Fig. 1From: Lotus leaf flavonoids induce apoptosis of human lung cancer A549 cells through the ROS/p38 MAPK pathwayFlavonoids extract constituents of lotus leaves. a Standard chromatograms; b Flavonoids of lotus leaves chromatograms. 1 kaempferitrin; 2 hyperoside; 3 astragalin; 4 phloridzin; 5 quercetin, (n = 3)Back to article page