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Alteration of plasma phospholipids distinguish schizophrenic patients from controls: A targeted metabolomics study

代谢组学 代谢物 精神分裂症(面向对象编程) 化学 内科学 鞘磷脂 脂类学 胆固醇 药理学 内分泌学 医学 生物化学 色谱法 精神科
作者
Manel Naifar,Abdellah Tebani,Franklin Ducatez,C. Pilon,Thomas Plichet,M. Maâlej,Wassim Guidara,M. Maâlej,Fatma Ayadi,Soumeya Bekri
出处
期刊:European Psychiatry [Cambridge University Press]
卷期号:66 (S1): S615-S615
标识
DOI:10.1192/j.eurpsy.2023.1282
摘要

Introduction Schizophrenia (SCZ) is one of the most severe mental disorders. Several elements involved in pathogenesis have been characterized recently. However, tools for diagnosis and risk prediction are limited. Elucidation of the underlying genomic and molecular mechanisms of SCA remains a challenge. Objectives In this study, we aimed to identify plasma biomarkers for SCZ using targeted metabolomics. Methods All enrolled patients were drug-free for at least 3 months prior to admission. Plasma from 31 SCZ patients and 70 matched controls were analyzed using the LC/MS- Api 4000 QTrap Sciex. A total of 188 targeted metabolites, including 21 amino acids, 21 biogenic amines and 145 lipids or lipid-related metabolites were analyzed. All data modeling and analysis is done using MetaboAnalyst 5.0 Results There was no significant difference in the studied groups regarding BMI. Plasma Triglycerides, LDL-C, total proteins levels were significantly decreased in SCZ compared to controls. Heatmap identified 2 clusters with 25 significantly differentially expressed metabolites (FDR <0.05) between the drug-naïve group and the matched controls. The OPLS-DA score plot showed that the groups are clearly separated according to plasma phospholipids concentrations. Among these differential metabolites, the expression level of very long chain Phosphatidylcholines (PC 36 – PC p42) and acylcarnitines were significantly decreased in SCZ compared to controls, whereas sphingomyelin (SM) and lysoPC were significantly lower in drug-naive patients. Conclusions In this study, we found that plasma phospholipids were significantly dysregulated in the SCZ patients and could be a promising pathway to explore SCZ. Disclosure of Interest None Declared

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