title: Lipidomic analysis of twenty-seven prostanoids and isoprostanes by liquid chromatography/electrospray tandem mass spectrometry.
abstract: Prostanoids are potent mediators of many physiological and pathophysiological processes. Of the many analytical methodologies used for their qualitative and quantitative analysis, electrospray tandem mass spectrometry coupled to liquid chromatography (LC/ESI-MS/MS) offers a rapid, sensitive and versatile system applicable to lipidomic analyses. We have developed an LC/ESI-MS/MS assay for twenty-seven mediators including prostaglandins, prostacyclines, thromboxanes, dihydroprostaglandins and isoprostanes. The assay was liner over the concentration range 1-100 pg/microL. The limits of detection and quantitation were 0.5-50 and 2-100 pg, respectively, whilst recoveries were from 83-116% depending on the metabolite. The assay can be applied to the profiling of prostanoids produced by a variety of biological fluids and extracts including brain, liver, plasma and urine, thus facilitating our understanding of the role of these lipid mediators in health and disease, as well as assisting in drug development.
authors.affiliation: School of Pharmacy, University of Bradford, Richmond Road, Bradford BD7 1DP, UK.
authors.forename: Mojgan
authors.initials: M
authors.lastname: Masoodi
authors.forename: Anna
authors.initials: A
authors.lastname: Nicolaou
mesh_terms: D000818:Animals; D002853:Chromatography, Liquid / Q000379:methods*; D028421:Isoprostanes / Q000378:metabolism*; D050356:Lipid Metabolism / Q000502:physiology*; D008297:Male; D009928:Organ Specificity; D011453:Prostaglandins / Q000378:metabolism*; D051381:Rats; D017207:Rats, Sprague-Dawley; D021241:Spectrometry, Mass, Electrospray Ionization / Q000379:methods*; D046888:Tissue Array Analysis / Q000379:methods*; D014018:Tissue Distribution
chemical_list: D028421:Isoprostanes; D011453:Prostaglandins