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目的：探讨聚集素（ clusterin，CLU）基因rs11136000位点多态性与云南省大理白族自治州白族人群晚发型阿尔茨海默病（ Late-onset Alzheimer＇s Disease，LOAD）的相关性。方法运用病例对照研究方法，在大理州白族人群中筛选LOAD患者109名作为病例组，和同期年龄、性别及文化程度相匹配的健康人120名作为对照组纳入研究。采用PCR及单核苷酸多态性（ Single nucleotide polymorphism，SNP）位点检测技术测定研究对象CLU rs11136000位点的基因型及等位基因。应用SPSS 17．0软件对研究数据进行统计分析。结果①病例组与对照组CLU rs11136000位点等位基因（C、T）及基因型（CC、CT、TT）频率（C：65．60％，T：34．40％，CC：38．53％，CT：54．13％，TT：7．34％）比较，均差异无统计学意义（χ2＝1．529， P＝0．216；χ2＝2．805， P＝0．246）；②病例组血清总胆固醇（ TC）高于对照组，差异有统计学意义（ t＝2．508， P＝0．013）。结论 CLU基因rs11136000可能并非白族人群LOAD的易感基因；LOAD患者血清TC高更为常见。“,”Objective To explore the association between clusterin(CLU) gene rs11136000 poly-morphism and late-onset Alzheimer’s disease ( LOAD) in Bai population from Dali Bai Autonomous Prefec-ture of Yunnan Province.Methods A case-control study including 109 LOAD patients and 120 normal con-trols matched for age,sex and level of education was taken in Dali Bai population.Polymerase chain reaction (PCR) and single nucleotide polymorphism (SNP) site testing were used to detect genotype and allele fre-quency of CLU SNP rs11136000.SPSS 17.0 was applied to analyze the data.Result ①The different fre-quency ( C:65.60%,T:34.40%,CC:38.53%,CT:54.13%,TT:7.34%) of CLU SNP rs11136000 genotypes and alleles distribution in Bai between LOAD patients and healthy controls showed no statistical significance (χ2=1.529, P=0.216;χ2=2.805, P=0.246) .②The serum total cholesterol ( TC) of LOAD patients was significantly higher than that in that of control group( t=2.508, P=0.013) .Conclusion The results suggest that CLU rs11136000 polymorphism may not be the susceptible gene of LOAD,and high serum total choles-terol is more common in LOAD patients.