Association of a Nonsynonymous Variant of DAOA with Visuospatial Ability in a Bipolar Family Sample
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Soronen-2008-Association of a Nonsynonymous Variant of DAOA with Visuospatial Ability in a.pdf
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Author(s)
Soronen, Pia
Silander, Kaisa
Antila, Mervi
Palo, Outi M.
Tuulio-Henriksson, Annamari
Kieseppa, Tuula
Ellonen, Pekka
Wedenoja, Juho
Turunen, Joni A.
Pietilainen, Olli P. H.
Date Issued
September 2008
Journal
Biological Psychiatry
Publisher
Elsevier B.V.
Citation
Soronen, Pia et al. “Association of a Nonsynonymous Variant of DAOA with Visuospatial Ability in a Bipolar Family Sample.” Biological Psychiatry 64.5 (2008): 438–442. Web.
Version
Final published version
Abstract
Background:
Bipolar disorder and schizophrenia are hypothesized to share some genetic background.
Methods:
In a two-phase study, we evaluated the effect of five promising candidate genes for psychotic disorders, DAOA, COMT, DTNBP1, NRG1, and AKT1, on bipolar spectrum disorder, psychotic disorder, and related cognitive endophenotypes in a Finnish family-based sample ascertained for bipolar disorder.
Results:
In initial screening of 362 individuals from 63 families, we found only marginal evidence for association with the diagnosis-based dichotomous classification. Those associations did not strengthen when we genotyped the complete sample of 723 individuals from 180 families. We observed a significant association of DAOA variants rs3916966 and rs2391191 with visuospatial ability (Quantitative Transmission Disequilibrium Test [QTDT]; p = 4 × 10−6 and 5 × 10−6, respectively) (n = 159) with the two variants in almost complete linkage disequilibrium. The COMT variant rs165599 also associated with visuospatial ability, and in our dataset, we saw an additive effect of DAOA and COMT variants on this neuropsychological trait.
Conclusions:
The ancestral allele (Arg) of the nonsynonymous common DAOA variant rs2391191 (Arg30Lys) was found to predispose to impaired performance. The DAOA gene may play a role in predisposing individuals to a mixed phenotype of psychosis and mania and to impairments in related neuropsychological traits.
MIT Department
Broad Institute of MIT and Harvard
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
https://doi.org/10.1016/j.biopsych.2008.03.028
