Association analysis of monoamine oxidase A gene and bipolar affective disorder in Han Chinese

<p>Abstract</p> <p>Background</p> <p>Monoamine oxidase A (MAOA) is a mitochondrial enzyme involved in degrading several different biological amines, including serotonin. Although several pieces of evidence suggested that MAOA is important in the etiology of bipolar affe...

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Main Authors: Lai Te-Jen, Yang Wei-Chih, Davamani Fabian, Lin Yi-Mei J, Sun H Sunny
Format: Article
Language:English
Published: BMC 2008-05-01
Series:Behavioral and Brain Functions
Online Access:http://www.behavioralandbrainfunctions.com/content/4/1/21
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author Lai Te-Jen
Yang Wei-Chih
Davamani Fabian
Lin Yi-Mei J
Sun H Sunny
author_facet Lai Te-Jen
Yang Wei-Chih
Davamani Fabian
Lin Yi-Mei J
Sun H Sunny
author_sort Lai Te-Jen
collection DOAJ
description <p>Abstract</p> <p>Background</p> <p>Monoamine oxidase A (MAOA) is a mitochondrial enzyme involved in degrading several different biological amines, including serotonin. Although several pieces of evidence suggested that MAOA is important in the etiology of bipolar affective disorder (BPD), associations for markers of the MAOA gene with BPD were not conclusive and the association has not been investigated in Taiwanese population. This study was designed to illustrate the role of MAOA in the etiology of BPD in Han Chinese.</p> <p>Methods</p> <p>Two markers, a dinucleotide polymorphism in exon 2 and a functional uVNTR on the promoter of the <it>MAOA </it>gene, were used to study the genetic association in 108 unrelated patients with BPD and 103 healthy controls. Allelic distributions of two polymorphisms were analyzed and, caused the MAOA located at X chromosome, haplotype association was performed using haplotype unambiguously assigned in male participants.</p> <p>Results</p> <p>While no difference in allelic distributions of two MAOA polymorphisms was found, the risk haplotype 114S was associated with BPD in male patients (<it>P </it>= 0.03). The significance, however, was not found in female patients with 114S haplotype.</p> <p>Conclusion</p> <p>Results from this study suggest that MAOA may have a gender-specific and small effect on the etiology of BPD in Taiwan. Due to the limited sample size, results from this study need to be confirmed in replicates.</p>
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spelling doaj.art-d85558beeaf944ac8859ef4d303c40e92022-12-22T01:57:29ZengBMCBehavioral and Brain Functions1744-90812008-05-01412110.1186/1744-9081-4-21Association analysis of monoamine oxidase A gene and bipolar affective disorder in Han ChineseLai Te-JenYang Wei-ChihDavamani FabianLin Yi-Mei JSun H Sunny<p>Abstract</p> <p>Background</p> <p>Monoamine oxidase A (MAOA) is a mitochondrial enzyme involved in degrading several different biological amines, including serotonin. Although several pieces of evidence suggested that MAOA is important in the etiology of bipolar affective disorder (BPD), associations for markers of the MAOA gene with BPD were not conclusive and the association has not been investigated in Taiwanese population. This study was designed to illustrate the role of MAOA in the etiology of BPD in Han Chinese.</p> <p>Methods</p> <p>Two markers, a dinucleotide polymorphism in exon 2 and a functional uVNTR on the promoter of the <it>MAOA </it>gene, were used to study the genetic association in 108 unrelated patients with BPD and 103 healthy controls. Allelic distributions of two polymorphisms were analyzed and, caused the MAOA located at X chromosome, haplotype association was performed using haplotype unambiguously assigned in male participants.</p> <p>Results</p> <p>While no difference in allelic distributions of two MAOA polymorphisms was found, the risk haplotype 114S was associated with BPD in male patients (<it>P </it>= 0.03). The significance, however, was not found in female patients with 114S haplotype.</p> <p>Conclusion</p> <p>Results from this study suggest that MAOA may have a gender-specific and small effect on the etiology of BPD in Taiwan. Due to the limited sample size, results from this study need to be confirmed in replicates.</p>http://www.behavioralandbrainfunctions.com/content/4/1/21
spellingShingle Lai Te-Jen
Yang Wei-Chih
Davamani Fabian
Lin Yi-Mei J
Sun H Sunny
Association analysis of monoamine oxidase A gene and bipolar affective disorder in Han Chinese
Behavioral and Brain Functions
title Association analysis of monoamine oxidase A gene and bipolar affective disorder in Han Chinese
title_full Association analysis of monoamine oxidase A gene and bipolar affective disorder in Han Chinese
title_fullStr Association analysis of monoamine oxidase A gene and bipolar affective disorder in Han Chinese
title_full_unstemmed Association analysis of monoamine oxidase A gene and bipolar affective disorder in Han Chinese
title_short Association analysis of monoamine oxidase A gene and bipolar affective disorder in Han Chinese
title_sort association analysis of monoamine oxidase a gene and bipolar affective disorder in han chinese
url http://www.behavioralandbrainfunctions.com/content/4/1/21
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