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PubMed 20632842


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Title: Genetic polymorphisms in the SCN8A gene are associated with suicidal behavior in psychiatric disorders in the Chinese population.

Authors: Yang Wang, Jing Zhang, Baocheng Liu, Liyan Shao, Zhiyun Wei, Xingwang Li, Jue Ji, Fengping Yang, Ti Wang, Jie Liu, Chunling Wan, Baojie Li, Yifeng Xu, Guoyin Feng, Lin He, Guang He

Journal, date & volume: World J. Biol. Psychiatry, 2010 Dec , 11, 956-63

PubMed link: http://www.ncbi.nlm.nih.gov/pubmed/20632842


Abstract
Suicidal behavior is a serious public health problem which is partly heritable. Identifying the genes and the neurobiologic pathways relevant to suicidal behavior is important for preventative strategies. One family-based study reported an association between sodium channel voltage gated type VIII alpha (SCN8A) and suicidal behavior. In the present study, we aimed to search for SCN8A polymorphisms conferring genetic susceptibility to suicide in the Chinese population.A total of 626 subjects was recruited for the study, including 297 suicide attempters and 329 non-attempters from Shanghai, China. We conducted a case-control association analysis of five SNPs (rs10506302, rs1601012, rs4762004, rs12581041, rs17126078) within the region of SCN8A gene.we found that two genetic polymorphisms showed statistically significant differences between cases and controls (rs1601012, P=0.004; rs12581041, P=0.01). Moreover, no haplotypes were significantly associated with suicidal behavior in psychiatric disorders after the false discovery rate (FDR) correction. In the analysis of schizophrenia subgroup, three genetic polymorphisms showed statistically significant differences between cases and controls (rs10506302, P=0.024; rs1601012, P=0.004; rs12581041, P=0.004).Our findings suggest that the SCN8A gene may be involved in the susceptibility to suicidal behavior among psychiatric disorder patients in the Han Chinese population.