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Multicenter Study
. 2008;25(3):287-92.
doi: 10.1159/000118634. Epub 2008 Feb 26.

Association analysis of GRIN2B, encoding N-methyl-D-aspartate receptor 2B subunit, and Alzheimer's disease

Davide Seripa  1 , Maria Giovanna Matera, Marilisa Franceschi, Alessandra Bizzarro, Francesco Paris, Leandro Cascavilla, Monica Rinaldi, Francesco Panza, Vincenzo Solfrizzi, Antonio Daniele, Carlo Masullo, Bruno Dallapiccola, Alberto Pilotto
Affiliations
Multicenter Study

Association analysis of GRIN2B, encoding N-methyl-D-aspartate receptor 2B subunit, and Alzheimer's disease

Davide Seripa et al. Dement Geriatr Cogn Disord. 2008.

Abstract

Background: The glutamatergic neurotransmitter systems play a crucial role in memory formation and information processing. Alterations in this system contribute to the manifestation of symptoms in Alzheimer's disease (AD). Glutamate transmits signals via the N-methyl-D-aspartate receptors (NMDARs).

Aims: The potential involvement of polymorphisms in the GRIN2B gene, encoding subunit 2B of the NMDA receptor, in the risk for AD was evaluated.

Methods: We investigated the 3 single-nucleotide polymorphisms (SNPs) rs1019385, rs1806201 and rs890, i.e. the G(-200)-->T transversion in the 5'UTR, the A(2664)-->G transition in exon 13 and the G(5072)-->T transition in the 3'UTR of the GRIN2B gene, in 222 Caucasian AD patients and 170 healthy Caucasian age-matched controls.

Results: No differences were found in the overall distribution of the single-nucleotide polymorphism genotypes between AD patients and healthy controls, even when the analysis was adjusted for sex, age and APOE. As expected from genotype frequencies, no differences were found in the distribution of the estimated allele and haplotype frequencies between AD patients and healthy controls.

Conclusion: In this study no significant association between polymorphisms in the GRIN2B gene and AD was observed. Further investigations of polymorphisms in the gene encoding the NMDA receptor 2B subunit in AD patients with different genetic setting are needed to clarify their role in the pathogenesis of AD.

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