Quercetin
Chemically related to a class of flavonoids called (pro)anthocyanins. Quercetin acts as an antihistamine and has anti-inflammatory activity. As an antioxidant it protects LDL cholesterol from becoming damaged. Cardiologists believe that damage to LDL is an underlying cause of heart disease. It has been connected with asthma, atherosclerosis, cataracts, diabetes, edema, gout, hay fever, high cholesterol, peptic ulcer and retinopathy. Quercetin has been found to be an effective hyperthermia sensitizer, making it a potential adjunct therapeutic agent in the treatment of various cancers that are sensitive to heat stress (prostate, ovarian, uterine, or cervical cancer, leukemia, melanoma, colon adenocarcinoma, and others).