ubiquinone and Ascorbic-Acid-Deficiency

One of the vital roles of ascorbic acid (vitamin C) is to act as an antioxidant to protect cellular components from free radical damage. Ascorbic acid has been shown to scavenge free radicals directly in the aqueous phases of cells and the circulatory system. Ascorbic acid has also been proven to protect membrane and other hydrophobic compartments from such damage by regenerating the antioxidant form of vitamin E. In addition, reduced coenzyme Q, also a resident of hydrophobic compartments, interacts with vitamin E to regenerate its antioxidant form. The mechanism of vitamin C antioxidant function, the myriad of pathologies resulting from its clinical deficiency, and the many health benefits it provides, are reviewed.

Topics: Animals; Antioxidants; Ascorbic Acid; Ascorbic Acid Deficiency; Cell Membrane; Free Radical Scavengers; Humans; Oxidation-Reduction; Oxidative Stress; Oxidoreductases; Ubiquinone; Vitamin E

Topics: Alkalies; Animals; Ascorbic Acid; Ascorbic Acid Deficiency; Chemical Precipitation; Chromatography; Guinea Pigs; Injections, Intraperitoneal; Kidney; Liver; Male; Rats; Solvents; Spectrophotometry; Sterols; Ubiquinone; Vitamin A; Vitamin A Deficiency

Topics: Animals; Ascorbic Acid; Ascorbic Acid Deficiency; In Vitro Techniques; Liver; Mevalonic Acid; Rats; Squalene; Ubiquinone; Vitamin A Deficiency

Topics: Ascorbic Acid Deficiency; Coenzymes; Guinea Pigs; Oxidoreductases; Quinones; Tyrosine; Ubiquinone