Definition of Oxidative Stress: Melbourne Dermatology Skin Care


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			Definition of Oxidative Stress *Nature* has created each organism with *mechanisms to deal with free radical damage. These biochemical reactions that absorb free radicals can be classified in a variety of ways. There are lipid* (fat) soluble antioxidants, such as Vitamin E which target the lipid-rich (fat-containing) parts of cells such as cell membranes. There are aqueous or water-soluble antioxidants such as Vitamin C which protect the water-containing interior liquid portions of cells. There are extrinsic antioxidants which can be ingested or applied. And there are intrinsic antioxidants which are present inside cells. Intrinsic antioxidants include superoxide dismutase (SOD), glutathione, catalase and peroxidase. These are manufactured within the cells of the organism itself for the purposes of cellular protection. A condition of "oxidative stress" exists when more free radicals exist than can be neutralized by the various types of antioxidants. Actually, *we are always in a state of "oxidative stress" since the number of free radicals is never exactly matched* by the number of antioxidants. There are always excess free radicals causing damage and the slow decline of the organism, also known as aging.** Related Skin Care Information, Products and Expert Discussions Inflammation Sources of Free Radical Damage Protecting Against Free-Radical Damage in the Skin The "Free Radical" Theory of Aging Cell Structure / Oxidative Damage / The Importance of Antioxidants IS Clinical : IS Clinical Topics : Oxidative Stress and Free Radical Damage : Theories of Aging : The "Free Radical" Theory of Aging : "Neurohumoral" Theory of Aging : The Cause of Disease : Inflammation : Sources of Free Radical Damage : The Skin and Free Radical Damage : Definition of Oxidative Stress : The Free Radical Cascade / The Importance of Antioxidants : Cell Structure / Oxidative Damage / The Importance of Antioxidants : The Importance of The RIght Antioxidants (Highly Individualized Medically Managed Protocols) : The Lifespan Curve : Lifespan Curve A — Neanderthal Wo(Man) : Lifespan Curve B — Sewers and Household Plumbing : Lifespan Curve C — Contemporary Wo(Man) : Lifespan Curve D — Virtually Utopic? : Hindsight and Empowered Knowledge: From Curve C to D : Oxidative Stress and Free Radical Damage — Reference List : Oxidative Stress/Damage Theory of Aging Disproven by Study : File Definition of Oxidative Stress for reference.		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