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Genes in the serotonin pathway are associated with bipolar affective disorder in a Han Chinese population.


ABSTRACT: Serotonin plays an important role in mood regulation, but the involvement of serotonin pathway genes in the development of bipolar I disorder (BP-I), a mood disorder, is not clear. We selected 21 single-nucleotide polymorphisms (SNPs) within the HTR2A gene, 8 within the SLC6A4 gene and 23 within the TPH2 gene for genotyping using the GoldenGate genotyping assay. A total of 375 patients with BP-I and 475 normal controls were recruited. Two out of 21 SNPs (rs1475196 and rs9567747) in the HTR2A gene and 1/23 SNPs (rs17110566) in the TPH2 gene were significantly associated with BP-I, both genotype-wise and allele-wise. Furthermore, a specific haplotype in the HTR2A gene showed a significant association with BP-I. Our results indicate that the HTR2A and TPH2 genes in the serotonin pathway play important roles in susceptibility to BP-I.

SUBMITTER: Xiang B 

PROVIDER: S-EPMC5562572 | biostudies-literature | 2014 Feb

REPOSITORIES: biostudies-literature

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Genes in the serotonin pathway are associated with bipolar affective disorder in a Han Chinese population.

Xiang Bo B   Yang Zhenxing Z   Lin Yin Y   Guan Lijie L   Li Xuan X   Deng Wei W   Jiang Zeyu Z   Lao Guohui G   Wang Qiang Q   Hao Xiaoyu X   Liu Xiang X   Wang Yingcheng Y   Zhao Liansheng L   Ma Xiaohong X   Li Tao T   Cao Liping L   Hu Xun X  

Neuroscience bulletin 20131017 1


Serotonin plays an important role in mood regulation, but the involvement of serotonin pathway genes in the development of bipolar I disorder (BP-I), a mood disorder, is not clear. We selected 21 single-nucleotide polymorphisms (SNPs) within the HTR2A gene, 8 within the SLC6A4 gene and 23 within the TPH2 gene for genotyping using the GoldenGate genotyping assay. A total of 375 patients with BP-I and 475 normal controls were recruited. Two out of 21 SNPs (rs1475196 and rs9567747) in the HTR2A gen  ...[more]

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