arachidonic acid definition

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noun arachidonic acid a fatty acid occurring in animal cells: the metabolic precursor of several groups of biologically active substances, including prostaglandins 3; noun arachidonic acid an essential fatty acid, C 20 H 32 O 2 , found in the lipids of most tissues, that is a precursor in the synthesis of prostaglandins, prostacyclins, and related effectors. Arachidonic acid is a 20-carbon or fatty acid that serves as the principal pro-inflammatory fatty acid. L'acide arachidonique produit à des fins de signalisation semble dériver d'une phospholipase A2 cytosolique (cPLA2, 85 kDa) spécifique à la phosphatidylcholine tandis que l'acide arachidonique produit dans le cadre d'une inflammation résulte de l'action d'une phospholipase A2 sécrétoire à faible poids moléculaire (sPLA2, 14 à 18 kDa). Sa formation est inhibée par les anti-inflammatoires. The regulation of arachidonic acid release from membrane phospholipids was investigated in lymphocytes from patients with cystic fibrosis as well as control patients. However, almost all those written in biology, medicine and nutrition limit the term to all-cis-5,8,11,14-eicosatetraenoic acid. Acide gras précurseur des prostaglandines et des leucotriènes. Liquid unsaturated fatty acid that occurs in most animal fats; considered essential in animal nutrition. Arachidonic acid is an essential fatty acid and a precursor in the biosynthesis of prostaglandins, thromboxanes, and leukotrienes Bosetti (2007). Arachidonic definition: related to arachidonic acid or the derivatives of arachidonic acid | Meaning, pronunciation, translations and examples Arachidonic acids synonyms, Arachidonic acids pronunciation, Arachidonic acids translation, English dictionary definition of Arachidonic acids. Cependant, une carence en acide linoléique, ou la capacité insuffisante à convertir l'acide linoléique en acide arachidonique, sont susceptibles de le rendre essentiel. Looking for abbreviations of AA? Medical Information Search English. Animated Mnemonics (Picmonic): https://www.picmonic.com/viphookup/medicosis/ - With Picmonic, get your life back by studying less and remembering more. : NSAIDs prevent the conversion of arachidonic acid to prostaglandin. See more. Sauter à la navigation Sauter à la recherche It is an Certains mammifères sont dans ce dernier cas et, l'acide arachidonique étant très peu abondant dans les plantes les plus courantes, sont nécessairement carnivores pour pouvoir s'en procurer : c'est typiquement le cas du chat[2],[3]. Oxygenation can take place at many different positions of arachidonic acid. EC 1.13.11.31. In the chemical structure, arachidonic acid is a carboxylic acid with a chain of 20 carbons and four cis double bonds; the first double bond is found in the sixth carbon from the omega end. Arachidonic acid definition, an essential fatty acid, C20H32O2, found in the lipids of most tissues, that is a precursor in the synthesis of prostaglandins, prostacyclins, and related effectors. This study sought to test … An unsaturated, essential fatty acid. Animated Mnemonics (Picmonic): https://www.picmonic.com/viphookup/medicosis/ - With Picmonic, get your life back by studying less and remembering more. arachidonic acid mortierella. This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional. In the latter cells, arachidonic acid release was … Its name derives from the New Latin word arachis (peanut), but it is important to note that peanut oil does not contain any arachidonic acid. Arachidonic acid is also found inside the human body, particularly in the muscles, liver, and brain. Arachidonic acid is an essential fatty acid involved in the inflammatory response. Its synthesis is inhibited by non-steroidal anti-inflammatory drugs (NSAIDs). : +33 3 83 96 21 76 - Fax : +33 3 83 97 24 56 13-16). Outcome definition, classification, or diagnostic procedure were mentioned in 3 nested case-control studies [23,24,25], 3 case-control studies [26,27,28], and 2 cross-sectional studies [31,32]. All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only. La définition de arachidonic acid dans Wordow Dictionnaire est aussi: l'acide arachidonique Acide arachidonique L'acide arachidonique est un acide gras 20:4(ω-6), polyinsaturé oméga-6 à 20 atomes de carbone, présent dans les phospholipides (notamment les phosphatidyléthanolamines, les phosphatidylcholines et les phosphatidylinositols) constituant les membranes cellulaires de … ‘Those essential nutrients - including taurine, arachidonic acid, and vitamin A - abound in meat.’. An enzyme that catalyzes the oxidation of arachidonic acid to yield 12-hydroperoxyarachidonate (12-HPETE) which is itself rapidly converted by a peroxidase to 12-hydroxy-5,8,10,14-eicosatetraenoate (12-HETE). Q: What function do the eicosanoids have that are derived from arachidonic acid? Arachidonic acid (AA) is a polyunsaturated fatty acid with 20 carbon atoms and four double bonds in the cis (Z) configuration. Arachidonic acid (AA, sometimes ARA) is a polyunsaturated omega-6 fatty acid 20: 4 (ω-6). Arachidonic acid definition, an essential fatty acid, C20H32O2, found in the lipids of most tissues, that is a precursor in the synthesis of prostaglandins, prostacyclins, and related effectors. Arachidonic Acid: An unsaturated, essential fatty acid. Definition. Traductions en contexte de "ARACHIDONIC ACID" en anglais-français avec Reverso Context : arachidonic acid metabolites https://fr.wikipedia.org/w/index.php?title=Acide_arachidonique&oldid=168128543, Infobox Chimie avec données obsolètes : directive 67/548/EEC, Portail:Sciences humaines et sociales/Articles liés, licence Creative Commons attribution, partage dans les mêmes conditions, comment citer les auteurs et mentionner la licence, il intervient également dans la biosynthèse de l'. Medical definition of arachidic acid: a white crystalline saturated fatty acid C20H40O2 found in the form of esters especially in vegetable fats and oils (as peanut oil). Arachidonic acid is a long-chain fatty acid that is a C20, polyunsaturated fatty acid having four (Z)-double bonds at positions 5, 8, 11 and 14. A polyunsaturated fatty acid present in animal fats. Some chemical sources define ‘arachidonic acid’ to designate any of the eicosatetraenoic acids. L'acide arachidonique est un acide gras 20:4(ω-6), polyinsaturé oméga-6 à vingt atomes de carbone, présent dans les phospholipides (notamment les phosphatidyléthanolamines, les phosphatidylcholines et les phosphatidylinositols) constituant les membranes cellulaires de l'organisme. The stimulation of specific cell-surface receptors activates phospholipase A 2 leading to the release of arachidonic acid from the cell membrane. Due to its muscle inflammation properties, […] Un article de Wikipédia, l'encyclopédie libre. Arachidonic acids synonyms, Arachidonic acids pronunciation, Arachidonic acids translation, English dictionary definition of Arachidonic acids. 1.1 Étymologie; 1.2 Locution nominale. noun. L'acide arachidonique peut être libéré d'une molécule de phospholipide par une phospholipase A2 (PLA2) et d'une molécule de diglycéride par une diacylglycérol lipase. Some types of fat can have detrimental effects on your health, while other fats when consumed in moderation help to reduce your risk of disease. : Les AINS empêchent la conversion de l'acide arachidonique en prostaglandine. It is an Meaning of arachidonic acid. Il est abondant dans le cerveau, les muscles et le foie. Arachidonic Acid and Mental Health: Arachidonic acid may trigger brain inflammation. Define Arachidonic acids. Définition, traduction, prononciation, anagramme et synonyme sur le dictionnaire libre Wiktionnaire. © 2012 - CNRTL 44, avenue de la Libération BP 30687 54063 Nancy Cedex - France Tél. It is a polyunsaturated omega-6 fatty acid that includes an organic chain of 20 carbon atoms. These polyunsaturated fatty acids compete with linoleic acid in the arachidonic acid pathway, thereby reducing the metabolism of arachidonic acid to prostaglandin E2 and thromboxane A2, which are both important in mediating inflammation. Arachidonic Acid & Eicosanoids - Duration: 7:23. Il ne s'agit pas d'un acide gras essentiel au sens strict dans la mesure où il peut être synthétisé par la plupart des mammifères à partir de l'acide linoléique. Arachidonic Acid 12-Lipoxygenase (n.) 1. (AA) is a long-chain omega-6 fatty acid. Definition of Arachidonic acid. Arachidonic acid is particularly concentrated in highly active membranes such as nerve synapses (junctions) and in photoreceptors in the eye retina. Freebase (0.00 / 0 votes) Rate this definition: Definitions. arachidonic acid n a fatty acid occurring in animal cells: the metabolic precursor of several groups of biologically active substances, including prostaglandins Top Gene Interactions. Arachidonic acid is a fatty acid commonly found in peanut oil that is responsible for muscle tissue inflammation. Fat found in the diet is not all the same. High blood levels have been associated with a greater risk of suicide and depressive episodes. Arachidonic acid is an essential fatty acid and a precursor in the biosynthesis of prostaglandins, thromboxanes, and leukotrienes Bosetti (2007). Special Feline Nutritional Needs: When it comes to nutrition, cats are indeed unique Blood levels of arachidonic acid--an omega-6 fat that is often vilified--weren't linked to a higher risk of cardiovascular disease. arachidonic acid (Noun) A long-chain polyunsaturated fatty acid, having 20 carbon atoms and four double bonds, found in animal fats; it is essential for human nutrition, being a precursor to the production of prostaglandins. arachidonic acid Définition, traduction, prononciation, anagramme et synonyme sur le dictionnaire libre Wiktionnaire. Arachidonic acids are stored in the cell membranes and send signals of adaptive changes in case of any damage done to the muscles. Information and translations of arachidonic acid in the most comprehensive dictionary definitions resource on the web. arachidonic acid listed as AA Arachidonic acid is a polyunsaturated fatty acid present in the phospholipids (especially phosphatidylethanolamine, phosphatidylcholine, and phosphatidylinositides) of membranes of the body's cells, and is abundant in the brain, muscles, liver. Arachidonic acid is metabolized in the body through dietary intake, especially through a fatty acid-rich food, however, this ability is not developed in newborn babies. La dernière modification de cette page a été faite le 5 mars 2020 à 19:55. It is important in metabolism, especially in the synthesis of prostaglandins and leukotrienes, and is an essential constituent of the diet. It is formed by the synthesis from dietary linoleic acid and is a precursor in the biosynthesis of prostaglandins, thromboxanes, and leukotrienes. 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