期刊
BIOMEDICINES
卷 10, 期 2, 页码 -出版社
MDPI
DOI: 10.3390/biomedicines10020243
关键词
endocannabinoid system; endocannabinoids; N-acylethanolamines; phosphatidylcholines; CB1 receptors; PPARs; antipsychotic treatment; first-episode psychosis; schizophrenia spectrum disorders
This study found alterations in the expanded endocannabinoid system and cell membrane composition in patients with schizophrenia spectrum disorders. The concentration of endocannabinoids and their precursors in the serum was associated with disease progression and treatment. These findings have important implications for understanding the metabolic changes in schizophrenia spectrum disorders.
Alterations in the expanded endocannabinoid system (eECS) and cell membrane composition have been implicated in the pathophysiology of schizophrenia spectrum disorders. We enrolled 54 antipsychotic (AP)-naive first-episode psychosis (FEP) patients and 58 controls and applied a targeted metabolomics approach followed by multivariate data analysis to investigate the profile changes in the serum levels of endocannabinoids: 2-arachidonoylglycerol (2-AG) and anandamide, endocannabinoids-like N-acylethanolamines (NAEs: linoleoylethanolamide, oleoylethanolamide, and palmitoylethanolamide), and their dominating lipid precursor's phosphatidylcholines. Biomolecule profiles were measured at the onset of first-episode psychosis (FEP) and 0.6 years and 5.1 years after the initiation of AP treatment. The results indicated that FEP might be characterized by elevated concentrations of NAEs and by decreased 2-AG levels. At this stage of the disease, the NAE-mediated upregulation of peroxisome proliferator-activated receptors (PPARs) manifested themselves in energy expenditure. A 5-year disease progression and AP treatment adverse effects led to a robust increase in 2-AG levels, which contributed to strengthened cannabinoid (CB1) receptor-mediated effects, which manifested in obesity. Dynamic 2-AG, NAEs, and their precursors in terms of phosphatidylcholines are relevant to the description of the metabolic shifts resulting from the altered eECS function during and after FEP.
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