Abstract
Introduction
Schizophrenia (SCH) is one of the most common psychiatric disorders, which involves impairments in motivation and cognition. The pathological mechanisms underlying SCH are still unknown, and no effective therapies can prevent or treat perfectly the cognitive impairments and deficit symptoms caused by SCH.
Objectives
We aimed to find the lipid expression change in plasma that underlie SCH onset and antipsychotics treatment.
Methods
We performed a data independent acquisition-based untargeted lipidomic approach on a quadrupole-time of flight liquid chromatography coupled to mass spectrometry platform. The plasma lipidomic profiles of SCH patients (n = 20) pre- and post-antipsychotics treatment were acquired as well as healthy controls (n = 29). Grouped or paired t-test were used to analyze the data.
Results
Over 1000 features were detected by our lipidomic analysis, of which 445 lipids belonging to 17 lipid species were reliably identified by tandem mass spectrometry. After statistical analysis, 47 lipids belonging to 9 lipid species were found to be dysregulated between naive SCH patients and healthy controls, and 50 lipids belonging to 9 lipid species were found to be dysregulated after antipsychotics treatment. These findings include several new SCH-relevant lipid species such as sphingomyelin, acylcarnitine and ceramide. Four types of lipid expression regulative patterns can be concluded from the above mentioned findings, revealing information about mechanism, side-effect and potential target of antipsychotics.
Conclusions
The work presented here have revealed several new lipid species which are significantly dysregulated in SCH disease development or antipsychotics treatment. These lipids provide new evidence for the pathological studies of SCH and new antipsychotics development, or can be considered as potentially candidate biomarkers for further validation.
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Abbreviations
- SCH:
-
Schizophrenia
- LC–MS:
-
Liquid chromatography coupled to mass spectrometry
- MS/MS:
-
Tandem mass spectrometry
- TOF:
-
Time of flight
- QC:
-
Quality control
- CE:
-
Cholesteryl ester
- DG:
-
Diacylglycerol
- TG:
-
Triacylglycerol
- FA:
-
Fatty acid
- LysoPC:
-
Lysophosphatidylcholine
- LysoPE:
-
Lysophosphatidylethanolamine
- PC:
-
Phosphatidylcholine
- PE:
-
Phosphatidylethanolamine
- p-PC:
-
Plasmenyl-PC
- p-PE:
-
Plasmenyl-PE
- PI:
-
Phosphatidylinositol
- SM:
-
Sphingomyelin
- GlcCer:
-
Glucosylceramide
- Cer:
-
Ceramide
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Acknowledgements
Research reported in this publication was supported by the Fund for Fostering Young Scholars of Peking University Health Science Center (Grant No. BMU2018PY006), the Interdisciplinary Medicine Seed Fund of Peking University (Grant No. BMU2017MX006), the 111 Project (Grant B07001) and the Lam Chung Nin Foundation for Systems Biomedicine.
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This study was conducted in accordance with the guidelines of the Declaration of Helsinki and the Principles of Good Clinical Practice. The Ethical Review Board of the Peking University Health Science Center approved the study.
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Lailai Yan and Juntuo Zhou are equal contributors.
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Yan, L., Zhou, J., Wang, D. et al. Unbiased lipidomic profiling reveals metabolomic changes during the onset and antipsychotics treatment of schizophrenia disease. Metabolomics 14, 80 (2018). https://doi.org/10.1007/s11306-018-1375-3
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DOI: https://doi.org/10.1007/s11306-018-1375-3