Abstract
We investigated three polymorphisms in the NMDA receptor 2B subunit gene (GRIN2B), involved in glutamatergic neurotransmission, as a candidate gene for bipolar disorder. In the study we included 419 patients with bipolar disorder. Consensus diagnosis by at least two psychiatrists was made, according to DSM-IV criteria, using SCID. The control group consisted of 487 healthy subjects. Genotypes for − 200G/T, 366C/G and rs890G/T of GRIN2B polymorphisms were established by PCR-RFLP method. Linkage disequilibrium analysis was done with Haploview. Genotype distributions were in Hardy–Weinberg equilibrium for the three polymorphisms in the group of patients and control subjects. No association was found between the three polymorphisms and bipolar disorder. In linkage disequilibrium analysis we did not find linkage between the three polymorphisms of GRIN2B gene. The polymorphisms of GRIN2B gene analysed in this study are not likely to be associated with bipolar disorder.
Published Version
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