The document discusses atherosclerosis and the role of redox balance. It summarizes work in the 1970s-1980s that defined the model of lipid transport by lipoproteins and characterized hepatic and extrahepatic LDL, VLDL, and chylomicron receptors. It also discusses sites of superoxide leakage in mitochondria and lists some major human plasma antioxidants like ascorbic acid, uric acid, albumin, transferrin, alpha-tocopherol, ubiquinol-10, and beta-carotenoids along with their concentrations and mechanisms of action.