Significant association between the genetic variations in the 5' end of the N-methyl-D-aspartate receptor subunit gene GRIN1 and schizophrenia.

Abstract

BACKGROUND:

N-methyl-D-aspartate (NMDA) receptors play important roles in many neurophysiological processes. Evidence from previous studies indicate that NMDA receptors contribute to the pathophysiology of schizophrenia. Two NMDA receptor subunit genes, GRIN1 and GRIN2A, are both good candidate genes for schizophrenia.

METHOD:

We genotyped five single nucleotide polymorphisms (SNPs) in GRIN1 and two in GRIN2A in 2455 Han Chinese subjects, including population- and family-based samples, and performed case-control and transmission disequilibrium test (TDT) analyses. A microsatellite in GRIN2A was genotyped in population-based samples and a Mann-Whitney U test was performed.

RESULTS:

A highly significant association was detected at the 5' end of GRIN1. Analyses of single variants and multiple-locus haplotypes indicate that the association is mainly generated by rs11146020 (case-control study: p = .0000013, odds ratio = .61, 95% confidence interval .50-.74; TDT: p = .0019, T/NT = 79/123). No association was found in the GRIN2A polymorphisms.

CONCLUSIONS:

Our results provide support for the hypothesis that NMDA receptors are an important factor in schizophrenia. Moreover, rs11146020 is located in 5' untranslated region where several functional elements have been found. Hence, the SNP is a potential candidate in altering risk for schizophrenia and worthy of further replication and functional study.

• Authors: Xinzhi Zhao, Huafang Li, Yongyong Shi, Ruqi Tang, Wuyan Chen, Jixia Liu, Guoyin Feng, Jianguo Shi, Lijuan Yan, Huijun Liu, Lin He
• Journal: Biological psychiatry (Biol Psychiatry) Vol. 59 Issue 8 Pg. 747-53 (Apr 15 2006) ISSN: 0006-3223 [Print] United States
• PMID: 16476413 (Publication Type: Comparative Study, Journal Article, Research Support, Non-U.S. Gov't)

Chemical References

• Carrier Proteins
• GRIN1 protein, human
• Nerve Tissue Proteins
• Receptors, N-Methyl-D-Aspartate

Topics

• 5' Flanking Region (genetics)
• Adult
• Asian People
• Carrier Proteins (genetics)
• Case-Control Studies
• Demography
• Family Health
• Female
• Gene Frequency
• Genetic Predisposition to Disease
• Genetic Variation
• Genotype
• Humans
• Male
• Middle Aged
• Nerve Tissue Proteins (genetics)
• Receptors, N-Methyl-D-Aspartate (genetics)
• Schizophrenia (genetics)
• Statistics, Nonparametric