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Shih PB, Yang J, Morisseau C, German JB, Zeeland AASV, Armando AM, Quehenberger O, Bergen AW, Magistretti P, Berrettini W, Halmi KA, Schork N, Hammock BD, Kaye W. Dysregulation of soluble epoxide hydrolase and lipidomic profiles in anorexia nervosa. Mol Psychiatry 2016; 21:537-46. [PMID: 25824304 PMCID: PMC4591075 DOI: 10.1038/mp.2015.26] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/16/2014] [Revised: 01/13/2015] [Accepted: 01/23/2015] [Indexed: 02/07/2023]
Abstract
Individuals with anorexia nervosa (AN) restrict eating and become emaciated. They tend to have an aversion to foods rich in fat. Because epoxide hydrolase 2 (EPHX2) was identified as a novel AN susceptibility gene, and because its protein product, soluble epoxide hydrolase (sEH), converts bioactive epoxides of polyunsaturated fatty acid (PUFA) to the corresponding diols, lipidomic and metabolomic targets of EPHX2 were assessed to evaluate the biological functions of EPHX2 and their role in AN. Epoxide substrates of sEH and associated oxylipins were measured in ill AN, recovered AN and gender- and race-matched controls. PUFA and oxylipin markers were tested as potential biomarkers for AN. Oxylipin ratios were calculated as proxy markers of in vivo sEH activity. Several free- and total PUFAs were associated with AN diagnosis and with AN recovery. AN displayed elevated n-3 PUFAs and may differ from controls in PUFA elongation and desaturation processes. Cytochrome P450 pathway oxylipins from arachidonic acid, linoleic acid, alpha-linolenic acid and docosahexaenoic acid PUFAs are associated with AN diagnosis. The diol:epoxide ratios suggest the sEH activity is higher in AN compared with controls. Multivariate analysis illustrates normalization of lipidomic profiles in recovered ANs. EPHX2 influences AN risk through in vivo interaction with dietary PUFAs. PUFA composition and concentrations as well as sEH activity may contribute to the pathogenesis and prognosis of AN. Our data support the involvement of EPHX2-associated lipidomic and oxylipin dysregulations in AN, and reveal their potential as biomarkers to assess responsiveness to future intervention or treatment.
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Affiliation(s)
- P B Shih
- Department of Psychiatry, University of California at San Diego, San Diego, CA, USA
| | - J Yang
- Department of Entomology, University of California at Davis, Davis, CA, USA
| | - C Morisseau
- Department of Entomology, University of California at Davis, Davis, CA, USA
| | - J B German
- Department of Entomology, University of California at Davis, Davis, CA, USA
| | | | - A M Armando
- Department of Psychiatry, University of California at San Diego, San Diego, CA, USA
| | - O Quehenberger
- Department of Psychiatry, University of California at San Diego, San Diego, CA, USA
| | - A W Bergen
- Center for Health Sciences, SRI International, Menlo Park, CA, USA
| | - P Magistretti
- Division of Biological and Environmental Sciences and Engineering, KAUST, Thuwal, KSA and Brain Mind Institute, EPFL, Lausanne, Switzerland
| | - W Berrettini
- Department of Psychiatry, University of Pennsylvania, Philadelphia, PA, USA
| | - K A Halmi
- Department of Psychiatry, Cornell University, New York, NY, USA
| | - N Schork
- Department of Human Biology, J. Craig Venter Institute, San Diego, CA, USA
| | - B D Hammock
- Department of Entomology, University of California at Davis, Davis, CA, USA
| | - W Kaye
- Department of Psychiatry, University of California at San Diego, San Diego, CA, USA
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Eberle C, Merki E, Yamashita T, Johnson S, Armando AM, Quehenberger O, Napoli C, Palinski W. Mütterliche Immunmodulierung zeigt protektive Effekte auf die maternale sowie infantile Entwicklung einer Insulinresistenz am in vivo-Modell. DIABETOL STOFFWECHS 2013. [DOI: 10.1055/s-0033-1341686] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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