The flavonoid quercetin inhibits proinflammatory cytokine (tumor necrosis factor alpha) gene expression in normal peripheral blood mononuclear cells via modulation of the NF-κB system. - Nair,M.P.; Mahajan,S.; Reynolds,J.L.; Aalinkeel,R.; Nair,H.; Schwartz,S.A.; Kandaswami,C. (Clin Vaccine Immunol, 2006)