Trace Elements, Micronutrients, and Free Radicals (Hardcover, 1991 ed.)

Itisonlyrecently thatthe naturaloccurrenceoffree radicalsin biological tissue has become widely accepted, and that the suspi- cion with which biologists previously viewed the free radicals of radiationchemistryhas beenplacedin a broaderperspective. Now, oxygen-derived free radicals are considered respectable biochemi- cal intermediates, given always the caveat that unwanted tissue damage may arise if these active species are produced in such abundance that they overwhelm the natural antioxidant and free- radical defense mechanisms, or if these systems have become hypoeffective. Many factors, including several dietary manipula- tions, can lead toelevatedproductionofsuperoxide and may result in free radical overload, whereas a deficiency of those micronutri- ents associated with the antioxidant defense mec.hanisms may re- sult in substantially diminished antioxidant capacity. By now, antioxidants have become a household word and al- most everyone is aware of their imponance in protecting the body against attack by active oxygen species. Indeed, it is a paradox of nature that oxygen, which is so essential to sustain aerobic life, ul- timately contributes to its destruction. Not surprisingly, recogni- tion ofthis dilemma has generated a spate ofantioxidant strategies intended to reduce the risk of tissue damage by rampant oxygen radicals, some sadly based less on science than on speculation.

General

Imprint:	HumanaPress
Country of origin:	United States
Series:	Contemporary Issues in Biomedicine, Ethics, and Society
Release date:	November 1991
First published:	1991
Authors:	Ivor E. Dreosti
Dimensions:	235 x 155 x 14mm (L x W x T)
Format:	Hardcover
Pages:	231
Edition:	1991 ed.
ISBN-13:	978-0-89603-188-3
Categories:	Books > Medicine > Pre-clinical medicine: basic sciences > Physiology > General Books > Science & Mathematics > Biology, life sciences > Human biology & related topics > General Promotions
LSN:	0-89603-188-8
Barcode:	9780896031883

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