| A synopsis of the process of lipid peroxidation since the discovery of the essential fatty acids. | |
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MedLine Citation:
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PMID: 20674543 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Eighty years ago, Burr and Burr, introduced for the first time the concept of essential fatty acids. Now is very well known that requirements for polyunsaturated fatty acids PUFAs can not be met by de novo metabolic processes within mammalian tissues. Animals are absolutely dependent on plants for providing the two major precursors of the n-6 and n-3 fatty acids, C18:2n-6; linoleic and C18:3n-3; alpha-linolenic acids. In animal tissues these precursors are transformed to fatty acids containing three to six double bonds. During the last four decades the interest in polyunsaturated fatty acids has augmented manifolds, and the number of published studies is rising each year. The current impetus for this interest has been mainly the observation that PUFAs and their metabolites have several physiological roles including: energy provision, membrane structure, cell signaling and regulation of gene expression. In addition the observation that PUFAs are targets of lipid peroxidation opens a new important area of investigation. Melatonin, the main secretory product of the pineal gland, efficiently scavenges both the hydroxyl and peroxyl radicals counteracting lipid peroxidation in biological membranes. In addition the two key pineal biochemical functions, lipoxygenation and melatonin synthesis may be synergistically regulated by the status of n-3 essential fatty acids. At the retina level, free radicals may preferentially react with the membrane polyunsaturated fatty acids leading to the release of lipoperoxide radicals. These lipoperoxides can induce oxidative stress linked to membrane lysis, damage to neuronal membranes may be related to alteration of visual function. |
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Authors:
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Angel Catalá |
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Publication Detail:
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Type: Historical Article; Journal Article; Research Support, Non-U.S. Gov't; Review Date: 2010-07-30 |
Journal Detail:
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Title: Biochemical and biophysical research communications Volume: 399 ISSN: 1090-2104 ISO Abbreviation: Biochem. Biophys. Res. Commun. Publication Date: 2010 Aug |
Date Detail:
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Created Date: 2010-08-30 Completed Date: 2010-09-14 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0372516 Medline TA: Biochem Biophys Res Commun Country: United States |
Other Details:
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Languages: eng Pagination: 318-23 Citation Subset: IM |
Copyright Information:
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Copyright 2010 Elsevier Inc. All rights reserved. |
Affiliation:
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Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas, (INIFTA-CCT La Plata-CONICET), Facultad de Ciencias Exactas, Universidad Nacional de La Plata, Argentina. catala@inifta.unlp.edu.ar |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Animals Cell Membrane / metabolism Fatty Acids, Essential / chemistry, history, metabolism* History, 20th Century History, 21st Century Humans Lipid Peroxidation* Nutritional Requirements Oxidation-Reduction* Pineal Gland / metabolism Reactive Oxygen Species / history, metabolism* Retina / metabolism |
| Chemical | |
Reg. No./Substance:
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0/Fatty Acids, Essential; 0/Reactive Oxygen Species |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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