Flavonoids including baicalin, baicalein, phloridzin, and phloretin have been demonstrated to possess inhibitory effects on human erythrocyte GST164 while Majidinia et al have elucidated the suppressive influence of emodin and quercetin on GSTP1, contributing to the mitigation of chemoresistance in cancer cells.165. This evidence concerns the gene GSTP1 and cancer.