
Keywords: HEAD; PUFA; polyunsaturated fatty acid; OXLAM; oxidized LA derived mediator; CFA; Complete Freund's Adjuvant; PAG; Periaqueductal grey; LA; linoleic acid; AA; Arachidonic acid; DHA; Docosahexaenoic acid; LC-MS/MS; liquid chromatography-tandem mass spectrometry;