The Ser9Gly polymorphism of the dopamine D3 receptor gene and risk of schizophrenia: an association study and a large meta-analysis.

Abstract

Dopamine D3 receptor (DRD3) binds antipsychotic drugs and is abundant in the limbic system of the brain. It has been shown to play important roles in schizophrenia. A number of studies investigated the Ser9Gly polymorphism of the DRD3 gene to test its possible association with schizophrenia; however, the results were inconsistent. Our study aims to further evaluate the possible association between the Ser9Gly polymorphism and schizophrenia using a case-control association study within the Han Chinese population as well as a meta-analysis covering all previous studies. Our study, based on 329 schizophrenic patients and 288 controls, found no significant difference in the genotype or allele distributions of Ser9Gly polymorphism, the meta-analysis showed that the Ser9Gly polymorphism was not associated with Schizophrenia. Our study does not support the contention that the Ser9Gly polymorphism of the DRD3 gene plays a major role in schizophrenia in the Chinese population.

DOI: 10.1016/j.schres.2007.11.041

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@article{Ma2008TheSP, title={The Ser9Gly polymorphism of the dopamine D3 receptor gene and risk of schizophrenia: an association study and a large meta-analysis.}, author={Gang Ma and Zangdong He and Wenli Fang and Wei Tang and Ke Huang and Zhiqiang Li and Guang He and Yifeng Xu and Guoyin Feng and Tao Zheng and Jian Zhou and Lin He and Yongyong Shi}, journal={Schizophrenia research}, year={2008}, volume={101 1-3}, pages={26-35} }