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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 
 
 

Metabolism of arachidonic acid in polymorphonuclear leukocytes. Structural analysis of novel hydroxylated compounds.

Arachidonic acid was incubated with rabbit peritoneal polymorphonuclear leukocytes (glycogen-induced) and compounds obtained from ether extractions were fractionated by silicic acid column chromatography. A fraction containing several unidentified metabolites of arachidonic acid was analyzed by reversed phase-high pressure liquid chromatography. The metabolites were esterified and further purified by silicic acid high pressure liquid chromatography. The structures of the pure compounds were elucidated by infrared and ultraviolet spectrometry, ozonolysis, and gas chromatography-mass spectrometry. The following novel compounds were identified: Compound 1, 5S, 12R-dihydroxy-(E,E,E,Z)-6,8,10,14-eicosatetraenoic acid; Compound 2, 5S, 12S-dihydroxy-(E,E,E,Z)-6,8,10,14-eicosatetraenoic acid; Compound 3, 5, 6-dihydroxy-7,9,11,14-eicosatetraenoic acid; Compound 4, a diastereoisomer of the latter. Evidence for the occurrence of the delta-lactone forms of the 5,12-dihydroxy acids is also presented.[1]

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