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Relationship between Genetic Polymorphisms of 3 SNP Loci in 5-HTT Gene and Paranoid Schizophrenia
Author(s): XUAN Jin-feng, DING Mei, PANG Hao, XING Jia-xin, SUN Yi-hua, YAO Jun, ZHAO Yi, LI Chun-mei, WANG Bao-jie
Pages: 418-
421
Year: 2012
Issue:
6
Journal: Journal of Forensic Medicine
Keyword: 法医遗传学; 多态性; 单核苷酸; 精神分裂症; 5-羟色胺转运体;
Abstract: 目的 探讨5-羟色胺转运体(5-hydroxytryptamine transporter,5-HTT)基因3个SNP位点(rs25533、rs34388196、rs1042173)的群体遗传学信息及其与偏执型精神分裂症的相关性.方法 采用PCR-RFLP技术对中国北方汉族群体132例偏执型精神分裂症患者和150例健康无关个体5-HTT基因3个SNP位点遗传多态性进行检测,使用x2检验进行Hardy-Weinberg平衡检验,对单倍型频率、群体遗传学参数进行统计学分析.结果 5-HTT基因3个SNP位点组成4种单倍型,其频率在精神分裂症组与对照组间比较差异无统计学意义(P>0.05),3个SNP位点的DP值分别为0.276、0.502、0.502,PIC值分别为0.151、0.281、0.281,PE值分别为0.014、0.072、0.072.结论 5-HTT基因3个SNP位点及其组成的4种单倍型与偏执型精神分裂症无相关性,而其多态性具有较高的法医学应用价值.
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