DeSCRJPTion

Tocotrienols contain an arene ring, a chromanol ring, and an isoprenoid tail; all tocotrienol compounds contain a methyl group on C8 of the arene ring. β-Tocotrienol contains one additional methyl group on the arene ring, POSTTTIONed para to C8. Tocotrienols are members of the vitamin E family, typically isolated from natural sources such as vegetable oils, nuts, and grains. Tocotrienols exhibit strong antioxidative activity as well as antiangiogenic, anticancer, and lipid-lowering qualities. Tocopherols, common substituents of over-the-counter vitamin E supplements, interfere with tocotrienol activity and show weaker antioxidative effects. Tocotrienols exhibit significant radical recycling abilities in cellular models of lipid peroxidation and oxidative damage and suppress HMG-CoA reductase activity. In vitro, these compounds induce apoptosis through inhibition of Id1, EGFR, and NF-κB, and also inhibit vessel formation and proliferation in aortic endothelial cells.