English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/118216
logo share SHARE   Add this article to your Mendeley library MendeleyBASE
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:


Oxigen and oxidation II: Antioxidant defense system of cellular organisms | Oxígeno y oxidación II: Mecanismos de defensa antioxidante de los sistemas biológicos

AuthorsJiménez Escrig, Antonio
Issue Date2003
PublisherSociedad Española de Dietética y Ciencias de la Alimentación
CitationNutricion Clinica y Dietetica Hospitalaria 23: 25- 35 (2003)
AbstractIn the human organism the production of reactive oxygen species and natural antioxidant defense are approximately balanced, but it is easy to tip this balance in favour of the reactive oxygen species and create the situation of oxidative stress. The antioxidant defense system of cellular organisms includes four levels of protection: prevention, interaction, repair, and adaptation. In this review, a description of endogen and dietetic antioxidants is made. In this description if the antioxidant action is produced before or during the exposure of the substrate to oxidative agent, or later when the damage have occurred, is considered. The preventive role of the enzymatic systems superoxide dismutase, catalase, and glutation peroxidase, of the metal quelating proteic systems transferrine, ceruloplasmine and haemoglobine, and of the dietetic antioxidant carotenoids, flavonoids, and vitamin C towards oxidation are analysed. In addition, the interaction role in the oxidative process of hydrosoluble (vitamin C, uric acid, bilirrubine) and liposoluble (vitamin E, ubiquinol, carotenoids, flavonoids) endogen and dietetic antioxidants is described. At least, a brief mention of the repair and adaptation processes in the defense system towards oxidative damage of biological substrates is done.
Identifiersissn: 0211-6057
Appears in Collections:(IF) Artículos
Files in This Item:
File Description SizeFormat 
accesoRestringido.pdf15,38 kBAdobe PDFThumbnail
Show full item record
Review this work

WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.