all four flavonoids inhibited the ascorbate-stimulated formation of malondialdehyde by boiled rat liver microsomes ( quercetin greater than rutin approximately cyanidol approximately meciadonol ) and inhibited platelet lipoxygenase activity ( quercetin greater than cyanidol greater than meciadonol greater than rutin ) whereas only flavonols , but not flavanes , stimulated cyclo-oxygenase and were bound to platelet membranes .
C0035976
rutin
C0060444
flavonols