Eicosatetraenoic acid (ETA) designates any straight chain tetra-unsaturated 20-carbon fatty acid. The pure compounds, which are rarely encountered, are colorless oils. Two isomers, both of them essential fatty acids, are of particular interest:
all-cis-5,8,11,14-eicosatetraenoic acid is an ω-6 fatty acid with the trivial name arachidonic acid. It is formed by a desaturation of dihomo-gamma-linolenic acid (DGLA, 20:3 ω-6).
all-cis-8,11,14,17-eicosatetraenoic acid is an ω-3 fatty acid. It is an intermediate between stearidonic acid (18:4 ω-3) and eicosapentaenoic acid (EPA, 20:5 ω-3)
Some chemistry sources define 'arachadonic acid' to designate any of the eicosatetraenoic acids. However, almost all writings in biology, medicine, and nutrition limit the use of the term 'arachidonic acid' to all-cis-5,8,11,14-eicosatetraenoic acid (ω-6).
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Eicosatetraenoicacid (ETA) designates any straight chain tetra-unsaturated 20-carbon fatty acid. The pure compounds, which are rarely encountered, are...
nutrition limit the term to all cis-5,8,11,14-eicosatetraenoicacid. Arachidonic acid is a polyunsaturated fatty acid present in the phospholipids (especially...
diseases such as asthma. Eicosatetraenoicacid (eicosatetraenoic's) has 20 carbons and is an 8,11,14,17-tetraunsaturated fatty acid. C19H31CO2H, IUPAC organization...
delta 6 elongase to produce eicosatetraenoicacid (ETA, 20:4 ω-3), desaturation at the fifth carbon of eicosatetraenoicacid by a delta 5 desaturase to...
to the eicosanoids include: Arachidonic acid (AA), i.e. 5Z,8Z,11Z,14Z-eicosatetraenoicacid is an ω-6 fatty acid with four double bonds in the cis configuration...
acid to its 5-oxo analog, i.e., 5-oxo-6E,8Z-octadecenoic acid, a structural analog of 5-oxo-eicosatetraenoicacid and like this oxo-eicosatetraenoic acid...
acid by a Δ6 desaturase to produce stearidonic acid (SDA, 18:4 ω-3), elongation of the stearidonic acid by a Δ6 elongase to produce eicosatetraenoic acid...
is a fat that contains a polyunsaturated fatty acid (abbreviated PUFA), which is a subclass of fatty acid characterized by a backbone with two or more carbon–carbon...
decreasing potency, are: 5-oxo-eicosatetraenoicacid, 5-oxo-15-hydroxy-eicosatetraenoicacid, and 5-Hydroxyeicosatetraenoic acid. This family of agonists stimulates...
hydroxylases) metabolize arachidonic acid (also known as eicosatetraenoicacid) to 20-hydroxyeicosatetraenoic acid (20-HETE). 20-HETE possesses a range...
polyunsaturated fatty acid, eicosapentaenoic acid). 5-Oxo-12(S)-hydroxy-HETE and its 8-trans isomer, 5-oxo-12(S)-hydroxy-6E,8E,11Z,14Z-eicosatetraenoicacid, and a series...
15(S)-hydroperoxy-5Z,8Z,11Z,13E-eicosatetraenoicacid (15(S)-HpETE) and 12(S)-hydroperoxy-5Z,8Z,10E,14Z-eicosatetraenoicacid (12(S)-HpETE); the purified...
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