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Monoamine Oxidase A and Tryptophan Hydroxylase Gene PolymorphismsAre They Associated with Bipolar Disorder?

 

作者: Martin Preisig,   François Ferrero,   Alain Malafosse,  

 

期刊: American Journal of PharmacoGenomics  (ADIS Available online 2005)
卷期: Volume 5, issue 1  

页码: 45-52

 

ISSN:1175-2203

 

年代: 2005

 

出版商: ADIS

 

关键词: Genetic polymorphism;Bipolar disorders

 

数据来源: ADIS

 

摘要:

Most of the candidate gene studies in bipolar disorder have focused on the major neurotransmitter systems that are influenced by drugs used in the treatment of this disorder. The monoamine oxidase A (MAOA) and the tryptophan hydroxylase (TPH1,TPH2) genes are two of the candidates that have been tested in a series of association studies using unrelated or family-based controls. This review summarizes the existing association studies regarding these genes. Most of these studies were based on the unrelated case-control design with samples of 50 to 600 subjects. RegardingMAOA, three meta-analyses with partially overlapping samples supported a modest effect of this gene in bipolar disorder in female Caucasians. However, as several studies could not replicate these findings, more work is necessary to demonstrate unequivocally the involvement ofMAOAin bipolar disorder and establish the biological mechanism underlying the genetic association. With respect toTPH1andTPH2, the majority of studies did not provide evidence for an association between these genes and bipolar disorder. The genes are more likely to be related to suicidal behavior than to bipolar disorder.

 

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