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Genome-wide QTL analysis for anxiety trait in bipolar disorder type I.

Abstract：

BACKGROUND:Genetic studies have been consistent that bipolar disorder type I (BPI) runs in families and that this familial aggregation is strongly influenced by genes. In a preliminary study, we proved that anxiety trait meets endophenotype criteria for BPI. METHODS:We assessed 619 individuals from the Central Valley of Costa Rica (CVCR) who have received evaluation for anxiety following the same methodological procedure used for the initial pilot study. Our goal was to conduct a multipoint quantitative trait linkage analysis to identify quantitative trait loci (QTLs) related to anxiety trait in subjects with BPI. We conducted the statistical analyses using Quantitative Trait Loci method (Variance-components models), implemented in Sequential Oligogenic Linkage Analysis Routines (SOLAR), using 5606 single nucleotide polymorphism (SNPs). RESULTS:We identified a suggestive linkage signal with a LOD score of 2.01 at chromosome 2 (2q13-q14). LIMITATIONS:Since confounding factors such as substance abuse, medical illness and medication history were not assessed in our study, these conclusions should be taken as preliminary. CONCLUSIONS:We conclude that region 2q13-q14 may harbor a candidate gene(s) with an important role in the pathophysiology of BPI and anxiety.

journal_name

J Affect Disord

journal_title

Journal of affective disorders

authors

Contreras J,Hare E,Chavarría-Soley G,Raventós H

doi

10.1016/j.jad.2017.12.019

subject

Has Abstract

pub_date

2018-07-01 00:00:00

pages

105-108

eissn

0165-0327

issn

1573-2517

pii

S0165-0327(17)32007-4

journal_volume

234

pub_type

杂志文章

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