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Hydroxyl - Wikipedia, the free encyclopedia (387 words) |
 | The hydroxyl radical, ·OH, is the neutral form of the hydroxide ion. |
 | Hydroxyl radicals are highly reactive and consequently short lived, however they form an important part of radical chemistry. |
 | The Hydroxyl radical is often referred to as the "detergent" of the troposphere because it reacts with many pollutants, often acting as the first step to their removal. |
| Le Magazine, December 1995 - The Dangerous Hydroxyl Radical (954 words) |
 | The hydroxyl radical is a third generation species of radical which is derived from hydrogen peroxide (HZ02), which, in turn, is derived from the superoxide radical through the action of the enzyme superoxide dismutase. |
 | Hydrogen peroxide is reduced to hydroxyl radicals by the enzymes glutathione peroxidase and catalase in the presence of transition metals such iron or copper. |
 | The fact that melatonin is so much better at scavenging hydroxyl radicals than any other antioxidant is persuasive evidence that melatonin protects us against a wide variety of diseases and that its progressive depletion with advancing age contributes to aging and the diseases and disabilities associated with aging. |