Find more facts and information on our topic page about antioxidant

antioxidant

A Dictionary of Nursing

antioxidant (anti-oks-i-dănt) n. a substance capable of neutralizing oxygen free radicals, the highly active and damaging atoms and chemical groups produced by various disease processes and by poisons, radiation, smoking, and other agencies. Antioxidants include vitamin C (ascorbic acid), vitamin E (tocopherols), and beta carotene.

Find more facts and information related to the .
© A Dictionary of Nursing 2008, originally published by Oxford University Press 2008.

Related newspaper, magazine, and trade journal articles from HighBeam Research

(Including press releases, facts, information, and biographies)

	Ascorbic acid, glucose, & the immune system.(Shorts) ; ...Association, that 200 mg/day of vitamin C (ascorbic acid) reduced the severity and the incidence...researchers have learned much about ascorbic acid's immune, enzymatic, antioxidant, and...researchers, and consumers who want to use ascorbic acid to boost the immune system: glucose... Read more
	Vitamin C supplementation does not modify bone mineral content or mineral absoprtion in growing pigs ; ...dose-dependently stimulated by ascorbic acid in differentiated pig osteoblasts...examined the relationship between ascorbic acid and bone metabolism by feeding young pigs large amounts of ascorbic acid. Three groups of seven 47-d-old... Read more
	Ascorbic Acid Does Not Increase the Oxidative Stress Induced by Dietary Iron in C3H Mice1 ; ...that can induce lipid peroxidation. Ascorbic acid, a potent antioxidant, has prooxidant...iron in vitro. We investigated whether ascorbic acid and iron co-supplementation in ascorbic acid-sufficient mice increases hepatic oxidative... Read more
	Candidate Genes and Quantitative Trait Loci Affecting Fruit Ascorbic Acid Content in Three Tomato Populations ; ...and vegetables are a major source of ascorbic acid (vitamin C), an important antioxidant for the human diet and also for plants. Ascorbic acid content in fruit exhibits a quantitative...Quantitative trait loci (QTL) for ascorbic acid content have been mapped in three tomato... Read more
	When it comes to vitamins, "Cs" make the grade ; ...white blood cells are saturated with ascorbic acid, they are like soldiers without bullets...inspired further expansion of research in ascorbic acid by Irwin Stone and the late Dr. Linus...benefits of a high-potency intake of ascorbic acid. Klenner was famous for his successful... Read more
	Reflections on vitamin C and hidden scurvy. ; My own interest in ascorbic acid centered on its role in vegetable...narrow one. The reasoning: Lack of ascorbic acid caused scurvy, so if there were...apparent), there was no lack of ascorbic acid. The only trouble with this logic... Read more
	Ascorbic acid deficiency decreases the renal level of kidney fatty acid-binding protein by lowering the (alpha 2U)-globulin gene expression in liver in scurvy-prone ODS rats ; Ascorbic Acid Deficiency Decreases the Renal Level...ABSTRACT The evidence for the role of ascorbic acid in gene expression or protein synthesis...limited. To investigate this role of ascorbic acid, we surveyed proteins whose tissue levels... Read more
	The interaction of cigarette smoking and antioxidants. part III: ascorbic acid. (Smoking & Ascorbic Acid). ; ...review examines available evidence of ascorbic acid supplementation and combinations of...intervention and biomarker studies of ascorbic acid conducted in populations of smokers...functional biomarker as a measured endpoint. Ascorbic Acid Cigarette smoke contains a range of... Read more
	The nature of vitamin C: the position of the Vitamin C Foundation on natural vitamin C and so-called vitamin C-complex. ; ...medical community who now believe that ascorbic acid isn't the real vitamin C. The dietary...belief that the ascorbate fraction of ascorbic acid (called the ascorbate ion) is vitamin...Common Cold (1970), Pauling stated, Ascorbic acid is an essential food for human beings... Read more
	Letters to the editor. ; ...received. False-negative reaction with ascorbic acid The authors claim that ascorbic acid is an oxidizing agent and thereby causes...dipstick. All sources I consulted state that ascorbic acid is a strong reducing substance, [1] not... Read more

For more facts and information, see all related premium articles

Related entries from encyclopedias, dictionaries, and thesauruses

	antioxidant antioxidant A substance that retards the oxidative rancidity of...especially vegetable oils, contain naturally occurring antioxidants, including vitamin E , which protect them against rancidity for some time. Synthetic antioxidants include propyl, octyl, and dodecyl gallates, butylated... Read more
	antioxidant nutrients antioxidant nutrients Highly reactive oxygen radicals are formed during normal oxidative metabolism and in response to infection and some chemicals. They cause damage to fatty acids in cell membranes, and the products of this damage can...different mechanisms are involved in protection against, or repair after, oxygen ... Read more
	Antioxidants Antioxidants Definition Antioxidants are chemical compounds that can bind to free oxygen radicals...healthy cells. Purpose Preliminary studies have suggested that antioxidants are useful in a number of ways in regards to cancer. For instance... Read more
	antioxidants antioxidants Substances that slow the rate of oxidation reactions. Various antioxidants are used to preserve foodstuffs and to prevent the...synthetic plastics, and many other materials. Some antioxidants inhibit the oxidation reaction by removing oxygen... Read more
	antioxidant ...prevent rancidity in fats , oils , and fatty foods. In the body, antioxidants such as vitamins C and E and selenium may reduce oxidation caused by free radicals . antioxidant antioxidant antioxidant Read more

See all related entries