云南汉族FZD3基因多态性及其单倍型与精神分裂症关联研究

目的 探讨FZD3基因上中下游三位点rs2241802、rs2323019、rs352203在精神分裂症病理生理机制中的可能作用.方法 采用横断面病例-对照研究.患者组为153例云南汉族精神分裂症患者.正常对照组为与患者组性别、年龄、文化程度匹配的100名云南汉族健康人.对患者组用阳性和阴性症状量表(PANSS)评定病情的严重程度.运用PCR-RFLP技术对FZD3基因的三位点进行多态性检测,并运用连锁不平衡分析,用单因素方差分析比较组间差异.结果 患者组的FZD3基因rs2241802、rs2323019、rs352203位点基因型频率和等位基因频率在精神分裂症患者样本中差异无统计学意义(P＞0.05).汉族样本中rs2241802-rs2323019的D'=0.021,r2=0.000;rs2241802-rs352203的D'=0.033,r2=0.001;rs2323019-rs352203的D'=0.057,r2=0.002,且A-A-C单倍型频率在精神分裂症患者组及对照组间差异有统计学意义(P=0.032),G-A-C单倍型频率在精神分裂症患者组及对照组间差异有统计学意义(P=0.024).患者组的FZD3基因rs2241802、rs2323019、rs352203三位点各个基因型在PANSS量表中各项因子分、总分的相关性均无统计学意义(P＞0.05).结论 FZD3基因rs2241802、rs2323019、rs352203 多态性可能与云南汉族精神分裂症无关,而A-A-C单倍型和G-A-C单倍型可能与云南汉族精神分裂症相关.

Association study between schizophrenia and human frizzled 3 gene( rs2241802 ,rs2323019 ,rs352203 ) polymorphism in Yunnan Han population

Objective To explore whether the polymorphism of human frizzled 3 (rs2241802 ,rs2323019,rs352203) is associated with schizophrenia in Yunnan Han population. Methods PCR-RELP was used to detect the polymorphism of human frizzled 3 (rs2241802 ,rs2323019, rs352203 ) in 153 patients and 100 controls. All patients were evaluated with positive and negative symptom scale(PANSS). Following a linkage disequilibrium test in the 3 loci ,association analysis was carried out between the polymorphism, including haplotype,and schizophrenia in all samples. Results No significant difference of genotype and allele frequency of the 3 loci were observed in 2 groups. There was no difference in genotype and allele frequency of rs2241802 ,rs2323019,rs352203 in Han samples (P＞0.05) . The polymorphisms of the 3 loci had been observed no difference in case-sibling control study of normal group. A-A-C haplotype and G-A-C haplotype were observed with a higher frequency in both samples (P＜0.05). There was no difference in patients and controls in PANSS scores (P ＞ 0.05 ). Conclusions There is no association between polymorphisms of human frizzled 3 ( rs2241802, rs2323019, rs352203 ) and schizophrenia in Han. A-A-C and G-A-C haplotype might possibly associate with schizophrenia in Yunnan Han population.