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The hypothesis that antioxidant vitamins might reduce cardiovascular disease risk is based on a large body of both basic and human epidemiologic research. One of the most consistent findings in dietary research is that those who consume higher amounts of fruits and vegetables have lower rates of heart disease and stroke as well as cancer. Recent attention has focused on the antioxidant content of...
The success of percutaneous transluminal coronary angioplasty is limited by restenosis in 30-50% of cases. Cellular production of reactive oxygen species at the site of injury has been implicated as a contributing factor in the process of restenosis. β-Carotene is a lipid-soluble antioxidant whose effects on this process have not been previously investigated. We attempted to elucidate whether β-carotene...
The inhibition of low density lipoprotein (LDL) oxidation has been postulated as one mechanism by which antioxidants may prevent the development of atherosclerosis. Available data on the ability of β-carotene to inhibit LDL oxidation are conflicting. We examined the role of in vivo and in vitro supplementation with β-carotene on metal ion-dependent (cupric ions, Cu 2+ ) and metal ion-independent...
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