Cited by 101Schizophrenia research and treatmentGenetic Associations and EpidemiologyBipolar Disorder and Treatment

Interacting haplotypes at the NPAS3 locus alter risk of schizophrenia and bipolar disorder

Pickard, B S, Christoforou, A, Thomson, P A, Fawkes, A, Evans, K L, Morris, S W, Porteous, D J, Blackwood, D H +1 more·2009·Molecular Psychiatry

Abstract

The neuronal PAS domain 3 (NPAS3) gene encodes a neuronal transcription factor that is implicated in psychiatric disorders by the identification of a human chromosomal translocation associated with schizophrenia and a mouse knockout model with behavioural and hippocampal neurogenesis defects. To determine its contribution to the risk of psychiatric illness in the general population, we genotyped 70 single-nucleotide polymorphisms across the NPAS3 gene in 368 individuals with bipolar disorder, 386 individuals with schizophrenia and 455 controls. Modestly significant single-marker and global and individual haplotypes were identified in four discrete regions of the gene. The presence of both risk and protective haplotypes at each of these four regions indicated locus and allelic heterogeneity within NPAS3 and suggested a model whereby interactions between variants across the gene might contribute to susceptibility to illness. This was supported by predicting the most likely haplotype for each individual at each associated region and then calculating an NPAS3-mediated 'net genetic load' value. This value differed significantly from controls for both bipolar disorder (P=0.0000010) and schizophrenia (P=0.0000012). Logistic regression analysis also confirmed the combinatorial action of the four associated regions on disease risk. In addition, sensitivity/specificity plots showed that the extremes of the genetic loading distribution possess the greatest predictive power-a feature suggesting multiplicative allele interaction. These data add to recent evidence that the combinatorial analysis of a number of relatively small effect size haplotypes may have significant power to predict an individual's risk of a complex genetic disorder such as psychiatric illness.

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Crossref · 10.1038/mp.2008.24

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Authors
Pickard, B. S., Christoforou, A., Thomson, P. A., Fawkes, A., Evans, K. L., Morris, S. W., Porteous, D. J., Blackwood, D. H., & Muir, W. J.
Affiliations
  • University of Strathclyde (GB)
  • Western General Hospital (GB)
  • Royal Edinburgh Hospital (GB)
Corresponding author
Pickard, B S
Venue
Molecular Psychiatry
Published
2008-03-04
Volume
14
Issue
9
Pages
874-884
ISSN
  • 1359-4184 (ISSN-L)
  • 1476-5578
OpenAlex
W1984808953
Cited by
101
References
34
Citations by year
2026: 3 · 2025: 2 · 2024: 1 · 2023: 3 · 2022: 2 · 2021: 3 · 2020: 3 · 2019: 4 · 2018: 6 · 2017: 6 · 2016: 9 · 2015: 7 · 2014: 4 · 2013: 6 · 2012: 9
FWCI
7.49
Type
journal article
Language
en
Open access
closed
Locations
  • Molecular Psychiatry (publishedVersion)
  • PubMed (publishedVersion)
Funders
Wellcome Trust
Topics
  • Health Sciences › Medicine › Psychiatry and Mental health › Schizophrenia research and treatment
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetic Associations and Epidemiology
  • Health Sciences › Medicine › Psychiatry and Mental health › Bipolar Disorder and Treatment
Keywords
NPAS3, schizophrenia, bipolar disorder, haplotype association, genetic susceptibility, single nucleotide polymorphisms, allelic heterogeneity, locus heterogeneity, psychiatric genetics
MeSH terms
Bipolar Disorder, Female, Haplotypes, Humans, Male, Nerve Tissue Proteins, Risk Factors, Schizophrenia, Sensitivity and Specificity, Transcription Factors, Linkage Disequilibrium, Logistic Models, Odds Ratio, Case-Control Studies, Polymorphism, Single Nucleotide, Basic Helix-Loop-Helix Proteins, Genome-Wide Association Study

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