Antioxidant Enzymes and their Role in Preventing Cell Damage
Amra Bratovčić
Abstract
Oxidative stress (OS) is a cellular phenomenon or condition which occurs as a result of physiological imbalance between the levels of antioxidants and oxidants (free radicals or reactive species) in favour of oxidants. In other words, oxidative/nitrosative stress is the result of disequilibrium in oxidant/antioxidant which reveals from continuous increase of reactive oxygen species (ROS) and reactive nitrogen species (RNS) production
Topics & Concepts
Reactive oxygen speciesReactive nitrogen speciesRadicalOxidative stressChemistryAntioxidantFree-radical theory of agingSuperoxideBiochemistryHydrogen peroxideSuperoxide dismutaseNitric oxideOxidative phosphorylationPeroxynitriteEnzymeOrganic chemistryGlutathione Transferases and PolymorphismsFree Radicals and Antioxidants