期刊
PROGRESS IN NEURO-PSYCHOPHARMACOLOGY & BIOLOGICAL PSYCHIATRY
卷 33, 期 3, 页码 511-518出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.pnpbp.2009.02.004
关键词
DAO; Glutamate; Polymorphism; Schizophrenia; Serine
资金
- Juntendo Institute of Mental Health
Differences in the levels of the glutamate-related amino acids glycine and serine in brain/plasma between schizophrenic patients and normal subjects and changes in the plasma concentrations of these amino acids according to the clinical course have been reported. It has been hypothesized that glycine and serine metabolism may be altered in schizophrenia. In fact, some genes related to the metabolism of these amino acids have been suggested to be candidate genes for schizophrenia. Thus, we performed a genomic case-control analysis of amino acid metabolism-related genes in Japanese patients with schizophrenia. Case-control genetic association analysis of PHGDH, SHMT1, SRR, and DAO was performed. In addition, the effect of the various genotypes resulting from these four genes on changes in plasma amino acid levels in schizophrenia was assessed. The genetic case-control analysis showed that no individual single-nucleotide polymorphism (SNP) in any of the four genes was associated with schizophrenia; only the two (rs3918347-rs4964770, P=0.0009) and three (rs3825251-rs3918347-rs4964770, P=0.002) SNP-based haplotype analysis of the DAO gene showed an association with schizophrenia even after correction for multiple testing. None of the genotypes studied was associated with changes in the plasma glycine and L- and D-serine levels during the schizophrenic clinical course. The DAO gene may be a susceptibility locus for schizophrenia. (C) 2009 Elsevier Inc. All rights reserved.
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