free-radical theory of aging

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• Free-radical theory — The free radical theory of aging states that organisms age because cells accumulate free radical damage over time. In general, a free radical is any atom or molecule that has a single unpaired electron in an outer shell. While a few free radicals …   Wikipedia

• Free radical (disambiguation) — Free radical is a chemistry term that describes an atomic or molecular species with unpaired electrons on an otherwise open shell configuration. The term may also refer to one of the following.Chemistry*Free radical addition An addition reaction… …   Wikipedia

• Radical (chemistry) — Free radical redirects here. For other uses, see Free radical (disambiguation). Moses Gomberg (1866 1947), the founder of radical chemistry Radicals (often referred to as free radicals) are atoms, molecules, or ions with unpaired electrons on an… …   Wikipedia

• Network theory of aging — The network theory of aging supports the idea that multiple connected processes contribute to the biology of aging. Kirkwood and Kowald helped to establish the first model of this kind by connecting theories and predict specific mechanisms. In… …   Wikipedia

• DNA damage theory of aging — The DNA damage theory of aging proposes that aging is a consequence of unrepaired DNA damage accumulation. Damage in this context includes chemical reactions that mutate DNA and/or interfere with DNA replication. Although both mitochondrial and… …   Wikipedia

• American Aging Association — The American Aging Association (AGE) is a non profit, tax exempt biogerontology organization of scientists and laypeople dedicated to biomedical aging studies intended to slow the aging process. The abbreviation AGE is intended to be… …   Wikipedia

• Oxygen radical absorbance capacity — (ORAC) is a method of measuring antioxidant capacities in biological samples in vitro.[1][2] A wide variety of foods has been tested using this method, with certain spices, berries and legumes rated highly.[3] There exists no physiological proof… …   Wikipedia

• List of life extension-related topics — Following is a list of topics related to life extension: compactTOC NOTOC 0–9* 15 Global ChallengesA* Accelerated aging disease ** Bloom syndrome ** Cockayne s syndrome ** Progeria ** Werner s syndrome ** Xeroderma pigmentosum * Accident * ACE… …   Wikipedia

• Denham Harman — (born February 14, 1916), MD, PhD, FACP, FAAA biogerontologist is Professor emeritus at the University of Nebraska Medical Center.[1][2][3] Harman is widely known as the father of the free radical theory of aging .[2][3] …   Wikipedia

• Antioxidant — Model of the antioxidant metabolite glutathione. The yellow sphere is the redox active sulfur atom that provides antioxidant activity, while the red, blue, white, and dark grey spheres represent oxygen, nitrogen, hydrogen, and carbon atoms,… …   Wikipedia

• Outline of life extension — See also: Index of life extension related articles The following outline is provided as an overview of and topical guide to life extension: Life extension – study of slowing down or reversing the processes of aging to extend both the maximum and… …   Wikipedia