Dietary Antioxidant An Indispensible Nutrient

Autor:	Faiza Rafique Shaikh, Zara Sami, Shizma Junejo
Rok vydání:	2018
Předmět:	inorganic chemicals chemistry.chemical_compound Hydroperoxyl Hypochlorous acid Chemistry Singlet oxygen Radical chemistry.chemical_element Photochemistry Hydrogen peroxide Oxygen Peroxynitrite Reactive nitrogen species
Zdroj:	Journal of Bahria University Medical and Dental College. :80-82
ISSN:	2617-9482 2220-7562
DOI:	10.51985/jbumdc2018124
Popis:	Free radicals prevail as atoms, molecules or unpaired electronsbeing extremely reactive as well as unstable1. They can leadto chemical reactions alongside different molecules. Havingbeen originated from constituents like oxygen, sulphur aswell as nitrogen which contribute towards production ofreactive oxygen species (ROS), reactive nitrogen species(RNS), reactive sulphur species (RSS)1.They includesuperoxide anion(O2-•), hydroperoxyl radical (HO2•), hydroxylradical (•OH), hydrogen peroxide (H2O2), singlet oxygen (1O2), hypochlorous acid (HOCl) and peroxynitrite (ONOO-) . Free radical species are formed in the course of plentifuloxidative metabolic processes in mitochondria 1.There is extremely mild equilibrium between the makingtogether with the counteraction of ROS through antioxidants.As a consequence whenever the equilibrium gravitates towardsover production of ROS then as a sequel to oxidative stresscells begin deteriorating.
Databáze:	OpenAIRE
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