Biochemical aspects of free radicals

摘要: Toxic free radicals can be produced by many reactions required for the maintenance of normal metabolism and production energy in cell. The reactivity both primary secondary with biomolecules whole tissue systems is interest, not only because their importance radiobiology but also role these species play toxicity various disorders. Oxidant stress known to increase radicals. In presence metals, especially iron, are converted into more damaging species. Trace elements an important that have evolved deal dietary status cell affect preventative antioxidant constituents chain-breaking clearly influenced content substances such as vitamins E C.