title: Metabolism of 8,11,14,17-eicosatetraenoic acid by human platelet lipoxygenase and cyclooxygenase.
abstract: Human platelets metabolize 8,11,14,17-eicosatetraenoic acid primarily into 12-hydroxy-8,10,14,17-eicosatetraenoic acid. Several other hydroxy acids were also produced in small amounts via an indomethacin insensitive pathway. Platelet cyclooxygenase metabolized this acid only into 12-hydroxy-8,10,14-heptadecatrienoic acid. It was not possible to detect any cyclic products even though vesicular gland cyclooxygenase metabolizes this (n-3) acid to 17,18-dehydroprostaglandin E1 (Oliw, E.H., Sprecher, H. and Hamberg, M. (1986) J. Biol. Chem. 261, 2675-2683).
mesh_terms: D019377:12-Hydroxy-5,8,10,14-eicosatetraenoic Acid; D001095:Arachidonic Acids / Q000097:blood*; D001792:Blood Platelets / Q000201:enzymology*; D002851:Chromatography, High Pressure Liquid; D006801:Humans; D006893:Hydroxyeicosatetraenoic Acids / Q000097:blood; D008084:Lipoxygenase / Q000378:metabolism*; D011451:Prostaglandin-Endoperoxide Synthases / Q000378:metabolism
chemical_list: D001095:Arachidonic Acids; D006893:Hydroxyeicosatetraenoic Acids; C052952:8,11,14,17-eicosatetraenoic acid; D019377:12-Hydroxy-5,8,10,14-eicosatetraenoic Acid; D008084:Lipoxygenase; D011451:Prostaglandin-Endoperoxide Synthases