“…Myricetin (MYR, Scheme 1) is a widespread, active ingredient of traditional Chinese medicine with antioxidant, antibacterial, antiviral, antihypertensive, hypoglycemic activities and so on. 18–21 The MYR also exhibits a good anti-tumor effect which can inhibit the proliferation of many cancer cells including liver cancer, colon cancer and breast cancer by blocking the cell cycle, inducing mitochondrial mediated apoptosis, inhibiting tumor angiogenesis and so on. 22–24 In particular, MYR can prevent 5FU induced cardiotoxicity, and was found to enhance the chemosensitivity of 5FU on esophageal carcinoma in vitro and in vivo .…”