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Schizophr Res. 2012 Jun;138(1):69-73. doi: 10.1016/j.schres.2012.03.007. Epub 2012 Apr 11.

Association between schizophrenia and common variation in neurocan (NCAN), a genetic risk factor for bipolar disorder.

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  • 1Department of Genomics, Life & Brain Center, University of Bonn, Bonn, Germany.

Abstract

A recent study found genome-wide significant association between common variation in the gene neurocan (NCAN, rs1064395) and bipolar disorder (BD). In view of accumulating evidence that BD and schizophrenia partly share genetic risk factors, we tested this single-nucleotide polymorphism for association with schizophrenia in three independent patient-control samples of European ancestry, totaling 5061 patients and 9655 controls. The rs1064395 A-allele, which confers risk for BD, was significantly over-represented in schizophrenia patients compared to controls (p=2.28×10(-3); odds ratio=1.11). Follow-up in non-overlapping samples from the Schizophrenia Psychiatric GWAS Consortium (5537 patients, 8043 controls) provided further support for our finding (p=0.0239, odds ratio=1.07). Our data suggest that genetic variation in NCAN is a common risk factor for BD and schizophrenia.

Copyright © 2012 Elsevier B.V. All rights reserved.

PMID:
22497794
[PubMed - indexed for MEDLINE]
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