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ARS Home » Pacific West Area » Davis, California » Western Human Nutrition Research Center » Obesity and Metabolism Research » Research » Publications at this Location » Publication #278502

Title: Quantitative profiling of oxylipins through comprehensive lc-ms/ms analysis: Application in cardiac surgery

Author
item STRASSBURG, KATRIN - Leiden University
item Pedersen, Theresa
item HUIJBRECHTS, ANNEMARIE - University Medical Center - Utrecht
item KORTEKAAS, KIRSTEN - Leiden University Medical Center
item LINDEMAN, JAN - Leiden University Medical Center
item DANE, ADRIE - Leiden University
item BERGER, RUDD - University Medical Center - Utrecht
item BRENKMAN, ARJAN - University Medical Center - Utrecht
item HANKEMEIER, THOMAS - Leiden University
item VAN DUYNHOVEN, JOHN - Leiden University
item KALKHOVEN, ERIC - University Medical Center - Utrecht
item Newman, John
item VREEKEN, ROB - Leiden University

Submitted to: Analytical and Bioanalytical Chemistry
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: 6/14/2012
Publication Date: 7/20/2012
Citation: Strassburg, K., Pedersen, T.L., Huijbrechts, A.M., Kortekaas, K., Lindeman, J., Dane, A., Berger, R., Brenkman, A., Hankemeier, T., Van Duynhoven, J., Kalkhoven, E., Newman, J.W., Vreeken, R. 2012. Quantitative profiling of oxylipins through comprehensive lc-ms/ms analysis: Application in cardiac surgery. Analytical and Bioanalytical Chemistry. 404(5):1413-1426.

Interpretive Summary: Oxylipins, including eicosanoids, affect a broad range of biological processes, such as the initiation and resolution of inflammation. These compounds, also referred to as lipid mediators, are (non-) enzymatically generated by oxidation of polyunsaturated fatty acids such as arachidonic acid (AA). A plethora of lipid-mediators exist which makes the development of generic analytical methods challenging. Here we developed a robust and sensitive targeted analysis platform for oxylipins and applied it in a biological setting, using high performance liquid chromatography coupled to tandem mass spectrometry (HPLC-MS/MS) operated in dynamic multiple reaction monitoring (dMRM). Besides the well- described AA metabolites, oxylipins derived from linoleic acid, dihomo-'-linolenic acid, a-linoleic acid, eicosapentaenoic acid and docosahexaenoic acid were included. Our comprehensive platform allows the quantitative evaluation of approximately 100 oxylipins down to low nanomolar levels. Applicability of the analytical platform was demonstrated by analyzing plasma samples of patients undergoing cardiac surgery. Altered levels of some of the oxylipins, especially in certain monohydroxy fatty acids such as 12-HETE and 12-HEPE, were observed in samples collected before and 24 hours after cardiac surgery. These findings indicate that this generic oxylipin profiling platform may be applied broadly to study these highly bioactive compounds in human disease.

Technical Abstract: Oxylipins, including eicosanoids, affect a broad range of biological processes, such as the initiation and resolution of inflammation. These compounds, also referred to as lipid mediators, are (non-) enzymatically generated by oxidation of polyunsaturated fatty acids such as arachidonic acid (AA). A plethora of lipid-mediators exist which makes the development of generic analytical methods challenging. Here we developed a robust and sensitive targeted analysis platform for oxylipins and applied it in a biological setting, using high performance liquid chromatography coupled to tandem mass spectrometry (HPLC-MS/MS) operated in dynamic multiple reaction monitoring (dMRM). Besides the well- described AA metabolites, oxylipins derived from linoleic acid, dihomo-'-linolenic acid, a-linoleic acid, eicosapentaenoic acid and docosahexaenoic acid were included. Our comprehensive platform allows the quantitative evaluation of approximately 100 oxylipins down to low nanomolar levels. Applicability of the analytical platform was demonstrated by analyzing plasma samples of patients undergoing cardiac surgery. Altered levels of some of the oxylipins, especially in certain monohydroxy fatty acids such as 12-HETE and 12-HEPE, were observed in samples collected before and 24 hours after cardiac surgery. These findings indicate that this generic oxylipin profiling platform may be applied broadly to study these highly bioactive compounds in human disease.