新疆维吾尔族、汉族帕金森病患者α-突触核蛋白SNCA基因多态性与临床症状的关系

目的探讨新疆维吾尔族、汉族帕金森病(PD)患者α-突触核蛋白SNCA基因多态性与临床症状的关系。方法应用PCR-限制性片段长度多态性分析法对新疆地区的90例维吾尔族和135例汉族PD患者进行SNCA基因rs3822086位点多态性分析。采集相关临床资料;采用H-Y分期法判断PD严重程度;采用统一PD评定量表(UPDRS)、日常生活能力问卷(ADL)、MMSE和神经精神问卷(NPI)进行评分。比较SNCA基因rs3822086位点不同基因型PD患者间临床症状的差异。结果基因检测结果显示,SNCA基因rs3822086位点C/T基因型111例,T/T基因型61例,C/C基因型53例;不同基因型PD患者间年龄、性别、民族及病程的差异均无统计学意义。不同基因型PD患者间H-Y分期的差异无统计学意义(P=0.237);PD严重程度的差异无统计学意义(P=0.068);首发症状的差异无统计学意义(P=0.746);UPDRSⅡ评分的差异无统计学意义(P=0.598);UPDRSⅢ评分的差异无统计学意义(P=0.815);UPDRSⅣ评分的差异无统计学意义(P=0.096);ADL评分的差异无统计学意义(P=0.464);MMSE评分的差异无统计学意义(P=0.475)。SNCA基因rs3822086位点T/T基因型PD患者NPI评分明显高于C/C基因型PD患者(P0.05)。结论新疆维吾尔族、汉族PD患者SNCA基因T/T基因型在神经精神症状方面的风险要高于C/C基因型,其他临床症状与SNCA基因多态性无关。     

SORL1基因多态性与中国东北地区帕金森病的相关性分析

目的探究SORL1基因rs2070045位点的单核苷酸多态性与帕金森病(Parkinson disease,PD)的相关性。方法本研究纳入215名中国东北地区汉族健康人和377例PD患者。根据其发病年龄,将PD组患者再分为早发PD组(发病年龄≤50岁)和晚发PD组(发病年龄50岁),收集一般临床资料,提取外周血基因组DNA,利用MALDI-TOF-PEX技术检测SORL1基因rs2070045多态性分布情况,分析其与帕金森病的相关性。结果在PD组与对照组以及晚发PD组与对照组的比较中,SORL1基因rs2070045位点单核苷酸多态性的基因型及等位基因频率分布无统计学差异。早发PD组与对照组比较,rs2070045基因型分布有显著差异(P=0.036),而等位基因频率无显著差异。在晚发PD中G等位基因携带者的起病年龄明显低于非携带者(P=0.001),其他临床特征如性别、Hoehn-Yahr分期以及病程在携带者和非携带者间无统计学差异。结论 SORL1基因rs2070045位点的单核苷酸多态性与中国东北地区汉族早发帕金森病相关,G等位基因可能是早发PD的保护性因素。     

SNCA基因内含子区多态性rs3857059与中国散发性帕金森病的关联研究

目的探究SNCA基因rs3857059位点的单核苷酸多态性(SNPs)与中国人群散发性帕金森病(PD)发病风险及临床症状的关联。方法采用病例-对照研究,收集南京地区PD患者171例为PD组;另选择健康者197例为对照组。应用基质辅助激光解吸附电离飞行时间质谱(MALDI-TOF-MS)技术检测基因SNPs。结果 PD组SNCA基因rs3857059位点G等位基因频率显著高于对照组(OR=1. 49,95%CI:1. 11～2. 00,P=0. 008),携带GG基因型增加PD的发病风险(OR=2. 17,95%CI:1. 18～4. 00,P=0. 013),男性GG型PD患者易感性高于女性,但与临床症状无关联。结论SNCA基因rs3857059位点的SNPs与中国人群散发性PD易感性有关。     

中国人GRIN2B、SNCA基因多态性与帕金森病相关幻觉的关联分析

目的探讨GRIN2B和SNCA基因多态性与不伴痴呆的帕金森病(PD)患者的幻觉症状是否相关。方法利用SNa Pshot SNP分型技术检测2个基因多态性,对53例幻觉组和47例无幻觉组及其两个亚组之间进行相关性分析。结果 GRIN2B和SNCA在PD有幻觉组和PD无幻觉组及其两个亚组的等位基因和基因型频率不存在显著差异。校正临床相关因素后,GRIN2B rs7301328的GG基因型降低PD相关幻觉发生风险(Recessive:OR’=0.246,95%CI[0.071~0.848],P’=0.026;Additive:OR’=0.432,95%CI[0.208~0.895],P’=0.024)。SNCA rs894278的GG基因型增加早发型PD幻觉发生的风险(Recessive:OR’=8.281,95%CI[1.217~56.334],P’=0.031)。未发现与PD幻觉迟发型的幻觉风险增加相关的基因多态性。结论在中国人不伴痴呆的PD人群中,GRIN2B rs7301328的GG基因型可能是PD相关幻觉的保护因素。而SNCA rs894278的GG基因型可能是PD患者幻觉早发型的幻觉发生的危险因素。     

中国汉族人泛醌NADH脱氢酶Fe-S蛋白1基因多态性与氯氮平所致代谢综合征的关联研究

目的:探索中国汉族精神分裂症患者人泛醌NADH脱氢酶Fe-S蛋白1(NDUFS1)基因多态性与长期服用氯氮平所致代谢综合征(MS)的关系。方法:收集388例长期服用氯氮平2年的慢性精神分裂症患者临床资料及代谢指标;分为MS组(159例)和非MS组(299例);对NDUFS1基因rs13024804、rs1044120、rs6435330、rs4147713这4个位点进行多态性检测,并进行组间及性别间分析。结果:NDUFS1基因4个位点各等位基因及基因型分布两组间差异无统计学意义;性别分层后发现,两组女性患者中携带rs1044120 T等位基因(GT+TT vs GG,P=0.002,OR=0.25,95%CI:0.10～0.61)、rs6435330 T等位基因(GT+TT vs GG,P 0.001,OR=0.21,95%CI:0.09～0.50)及rs4147713 G等位基因(TG+GG vs TT P=0.002,OR=0.26,95%CI:0.11～0.61)者患MS的危险性下降。男性患者中rs1044120位点T等位基因携带者血浆高密度脂蛋白水平显著高于非携带者[(1.33±1.26) mmol/L vs(1.09±0.48) mmol/L,P=0.034];女性患者中rs6435330位点T等位基因携带者舒张压显著低于非携带者[(71.43±7.134) mmHg vs (74.47±6.419) mmHg,P=0.032]。结论:在中国汉族精神分裂症患者中,NDUFS1基因多态性与氯氮平相关的MS无关联,女性患者中NDUFS1基因多态性与氯氮平相关的MS存在关联。     

中国黑龙江地区汉族人群FK506结合蛋白5基因多态性与精神分裂症的关联研究

目的:探讨中国黑龙江地区汉族人群FK506结合蛋白5(FKBP5)基因多态性与精神分裂症的关系。方法:采用SNaPshot测序法检测和分析49例汉族精神分裂症患者(患者组)和49名汉族健康对照者(对照组)的FKBP5基因rs3800373、rs1360780、rs9296158和rs9470080位点基因型和等位基因频率。结果:FKBP5 rs3800373位点基因型频率两组间差异有统计学意义(P0.05); Logistic回归分析显示,FKBP5基因rs3800373位点TT基因型携带者精神分裂症发生风险明显高于GT基因型携带者(95%CI:0.117～0.756,P=0.01)。结论:FKBP5基因rs3800373位点基因多态性可能与中国黑龙江地区汉族人群精神分裂症发病风险有关。     

单核苷酸多态性SNCA rs356221对帕金森病认知功能的影响

目的探讨单核苷酸多态性SNCA rs356221与帕金森病患者认知功能之间的关系。方法共收集2015年1月至2018年12月在四川绵阳四〇四医院神经内科帕金森病专科门诊就诊的帕金森病患者361例。所有患者均接受神经心理学评估(包括听觉词语学习测试,AVLT)、简易精神状态检查(MMSE)、蒙特利尔认知评估(Mo CA)和Stroop色词测验(SCWT)。利用SNaPShot方法进行SNCA rs356221的基因分型。结果利用SCWT量表,发现卡片C耗时SNCA rs356221携带者组较SNCA rs356221野生型组耗时延长(199.80±0.15 s vs 153.40±0.15 s,P 0.001)。SNCA rs356221携带者组的干扰指数要比SNCA rs356221野生型组显著增高(3.75±0.15 vs 2.88±0.24,P 0.001)。结论SNCA rs356221单核苷酸多态性对帕金森病的执行功能有一定的影响。     

中国东北地区CD40及CD40L基因多态性与散发帕金森病的相关性分析

目的 探究CD40基因rs1883832位点及CD40L基因rs1126535位点单核苷酸多态性与帕金森病(Parkinson disease,PD)的相关性。方法 本研究纳入285名中国东北地区汉族健康人和396例PD患者。根据其发病年龄将PD组患者再分为早发PD组(发病年龄≤50岁)和晚发PD组(发病年龄 50岁),收集一般临床资料,提取外周血基因组DNA,利用MALDI-TOF-PEX技术检测rs1883832位点及rs1126535位点多态性分布情况,分析其与帕金森病的相关性。结果 EOPD组与对照组rs1883832位点基因型分布有统计学差异(P 0. 05),等位基因频率在两组间没有统计学差异。PD组和LOPD组与对照组在rs1883832位点及rs1126535位点上,基因型及等位基因型频率无统计学差异。结论 CD40基因rs1883832位点单核苷酸多态性与中国东北地区汉族早发帕金森病相关,T等位基因可能是EOPD的危险因素。     

RABEP1基因与精神分裂症患者药物治疗所致体质量变化的关联分析

目的:探讨RABEP1基因多态性与精神分裂症(schizophrenia,SZ)患者抗精神病药治疗所致体质量变化的关联。方法:调查并随访1 701例首发SZ患者使用抗精神病药治疗2~7周后的体质量变化。使用Taq Man基因分型技术检测RABEP1基因rs1058398和rs1065482位点多态性,COX比例风险模型分析RABEP1基因变异与SZ患者药物治疗所致体质量增加之间的关系。结果:使用阿立哌唑治疗的SZ患者中,rs1058398位点AG+GG基因携带者相比AA基因携带者体质量增加的风险显著升高;调整年龄、性别后,风险比(HR)为1.842(95%CI:1.066~3.184,P=0.029);使用氯氮平患者中,rs1058398位点GG基因携带者相比AA+AG基因携带者体质量增加的风险显著降低,调整后HR为0.135(95%CI:0.018~0.992,P=0.049);使用奥氮平患者中,rs1058398位点相加模型与体质量增加相关联,调整后HR为1.740(95%CI:1.031~2.936,P=0.038)。此外,使用奥氮平患者中,rs1058398位点GG基因携带者相比AA+AG基因携带者体质量增加的风险显著升高,HR为3.534(95%CI:1.406~8.883,P=0.007)。使用阿立哌唑患者中,rs1065482位点CT+TT基因携带者相比CC基因携带者体质量增加的风险显著升高,HR为1.786(95%CI:1.034~3.083,P=0.037)。结论:RABEP1基因rs1058398和rs1065482位点与抗精神病药所致体质量增加的发生风险显著关联;RABEP1基因多态性与阿立哌唑、奥氮平、氯氮平所致体质量增加有关。     

沉默信息调节基因2的microRNA结合位点多态性与散发帕金森病的相关性研究

目的探讨沉默信息调节基因2(Sirtuin 2)3’UTR的microRNA结合位点多态性与散发帕金森病(Parkinson’s disease,PD)的关系。方法采用病例-对照研究、聚合酶链反应-限制性片段长度多态性(PCR-RFLP)方法分析了83例PD患者(PD组)与101例健康成人(对照组)Sirtuin 2基因3’UTR G+281A位点多态性。结果 PD组Sirtuin 2基因3’UTR的miRNA-486-3p结合位点(3’UTR G+281A位点)A等位基因频率以及GA+AA基因型频率高于对照组,但两组差异无统计学意义(P>0.05);在女性PD组A等位基因携带者的频率较对照组高,经χ2检验提示有相关倾向(χ2=3.205,P=0.073);PD组出现两例AA基因型,而对照组则无此种基因型。结论 Sirtuin 2基因3’UTR G+281A多态性的纯合子AA可能是PD的遗传易感性基因型,而在女性A等位基因携带者PD患病的风险可能增加。     

An updated analysis with 45,078 subjects confirms the association between SNCA rs11931074 and Parkinson’s disease

Large-scale genome-wide association study (GWAS) has identified that the alpha-synuclein (SNCA) rs11931074 polymorphism is associated with Parkinson’s disease (PD) susceptibility in individuals of Japanese descent. Subsequently, a number of replication studies have been performed in Asian and Caucasian populations. However, the results remain controversial due to the relatively small sample sizes and genetic heterogeneity. Here, to overcome the limitations of individual studies, we reevaluated this association with data from 33 independent studies involving 15,368 patients and 29,710 control samples identified by searching PubMed and EMBase databases. Odds ratios (OR) with 95% confidence interval (CI) were applied to assess the association between SNCA rs11931074 polymorphism and PD. Heterogeneity, sensitivity analysis, and publication bias were conducted to measure the robustness of our findings. Using allele, recessive, dominant, and additive models, we did not reveal significant heterogeneity among 33 studies. Significant association of the SNCA rs11931074 polymorphism with PD was observed (T vs. G: OR?=?1.36, 95% CI?=?1.31–1.42; TT vs. TG?+?GG: OR?=?1.58, 95% CI?=?1.46–1.72; TT?+?TG vs. GG: OR?=?1.44, 95% CI?=?1.35–1.55; TT vs. GG: OR?=?1.87, 95% CI?=?1.68–2.09) in the pooled populations. Furthermore, subgroup analyses accounting for ethnicity found similar significant results in both Asian and Caucasian populations. In conclusion, our meta-analysis further indicates that the SNCA rs11931074 polymorphism contributes to PD susceptibility. We believe that our findings will be very useful for future genetic studies on PD.     

Variant in the 3′ region of SNCA associated with Parkinson’s disease and serum α-synuclein levels

Parkinson's disease (PD) is the second most common neurodegenerative disorder. The presence of Lewy bodies is a major pathological change of PD. α-synuclein is the main component of Lewy bodies and is encoded by the SNCA gene. Mutations in the SNCA gene mainly result in rare familial forms of PD, while genetic variability in the SNCA gene modulates susceptibility to sporadic PD. Recent studies have suggested that levels of α-synuclein in extracellular biological fluid are associated with PD and implicated α-synuclein as a potential biomarker for PD diagnosis and severity. We studied serum α-synuclein concentration and two polymorphic variants of SNCA (Rep1 and rs11931074) in 110 sporadic PD patients and 136 controls. We further explored the influence of the two polymorphisms on the expression levels of serum α-synuclein. Soluble α-synuclein was detected in serum in all subjects, with no statistically significant difference between PD patients and controls (p?=?0.611). Different Rep1 alleles and genotypes did not influence the expression of serum α-synuclein. The frequency of allele T of rs11931074 was significantly elevated in PD patients (p?=?0.041), and was correlated with decreased serum α-synuclein in both dominant (p?=?0.011) and additive (p?=?0.008) models of association.     

RAB7L1基因启动子多态性与中国西南地区汉族帕金森病的关联

目的：探讨RAB7L1基因启动子区位点rs1572931的多态性与中国西南地区汉族帕金森病（PD ）的关联。方法收集2010年10月～2014年12月于川北医学院就诊的243例PD患者（PD组）和455名年龄匹配、无PD的健康体检者（对照组）,运用限制性片段长度多态性聚合酶链反应（PCR －RFLP）方法进行基因分型,探讨RAB7L1基因 rs1572931位点的单核苷酸多态性（SNP）与中国西南地区汉族PD的关系。结果 rs1572931的 T 等位基因频率在 PD 组和对照组中分别为27．98％和34．18％,差异有统计学意义（ P＝0．019,OR＝0．748,95％ C I＝0．588～0．952）;T T基因型频率在PD组和对照组中分别为4．94％与10．99％,差异有统计学意义（ P＝0．008,OR＝0．421,95％ C I＝0．220～0．806）。结论 RAB7L1基因 rs1572931位点的 T T基因型可能在中国西南汉族人群 PD的发生中起保护作用。     

SNCA polymorphisms, smoking, and sporadic Parkinson's disease in Japanese

Several case-control studies and genome-wide association studies have examined the relationships between single nucleotide polymorphisms (SNPs) in the SNCA gene and Parkinson's disease (PD), and have provided inconsistent results. We investigated the relationships between SNPs rs356229, rs356219, rs356220, rs7684318, and rs2736990 and the risk of sporadic PD in Japan using data from a multicenter hospital-based case-control study. Included were 229 cases within 6 years of onset of PD as defined according to the UK PD Society Brain Bank clinical diagnostic criteria. Controls were 357 inpatients and outpatients without neurodegenerative disease. Adjustment was made for sex, age, region of residence, and smoking. Based on the recessive model, compared with subjects with the CC or CT genotype of SNP rs356220, those with the TT genotype had a significantly increased risk of sporadic PD: the adjusted OR was 1.42 (95% CI: 1.002-2.02). In the additive model, SNP rs2736990 was significantly related to the risk of sporadic PD: the adjusted OR was 1.30 (95% CI: 1.002-1.68). There were no significant relationships between SNP rs356229, rs356219, or rs7684318 and the risk of sporadic PD in any genetic model. The additive interactions between SNPs rs356219 and rs356220 and smoking with respect to sporadic PD were significant although the multiplicative interactions were not significant. This study suggests that SNCA SNPs rs356220 and rs2736990 are significantly associated with the risk of sporadic PD in Japanese. We also present new evidence for biological interactions between SNPs rs356219 and rs356220 and smoking that affect sporadic PD.     

甲硫腺苷磷酸化酶基因多态性与脑梗死的相关性

目的探讨甲硫腺苷磷酸化酶(MTAP)基因多态性及其与脑梗死发病的关系。方法以rs10118757位点为遗传标记,采用聚合酶链式反应和限制性片段长度多态性(PCR-RFLP)方法检测196例脑梗死患者和130例对照者的基因型。用Logistic回归分析基因多态性与脑梗死的关系。结果脑梗死组G等位基因频率较对照组明显增高(χ2=5.691,P=0.017),脑梗死组GA+GG基因型频率较对照组明显增高(χ2=85.267,P=0.000)。Logistic回归分析显示MTAP基因rs10118757位点GA+GG基因型是脑梗死发病的独立危险因素。结论 MTAP基因rs10118757位点多态性与脑梗死的发病可能有关,GG+AG基因型为脑梗死患者发病的独立危险因素。     

A Search for SNCA 3′ UTR Variants Identified SNP rs356165 as a Determinant of Disease Risk and Onset Age in Parkinson’s Disease

Alpha-synuclein gene (SNCA) polymorphisms have been associated with the common sporadic form of Parkinson's disease (PD). We searched for DNA variants at the SNCA 3' UTR through single strand conformation analysis and direct sequencing in a cohort of Spanish PD patients and controls. We have genotyped the rs356165 SNCA 3' UTR polymorphism in a total of 1,135 PD patients and 772 healthy controls from two Spanish cohorts (Asturias and Navarre). We identified six SNCA 3' UTR variants. Single nucleotide polymorphism (SNP) rs356165 was significantly associated with PD risk in the Spanish cohort (p?=?0.0001; odd ratio?=?1.37, 95%CI?=?1.19-1.58). This SNP was also significantly associated with early age at onset of PD. Our work highlights rs356165 as an important determinant of the risk of developing PD and early age at onset and encourages future research to identify a functional effect on SNCA expression.     

颅内动脉瘤COL3A1基因启动子区多态性的检测与分析

目的 检测与分析颅内动脉瘤中Ⅲ型胶原蛋白α1链(COL3A1)基因启动子区rs2138533、rs11887092、rs1040186位点的多态性.方法 利用连接酶检测反应法,比较298例颅内动脉瘤与488例对照病人之间COL3A1基因启动子区各多态性位点的基因型和等位基因频率的构成.结果 颅内动脉瘤组与对照组中rs2138533位点TC+CC基因型频率差异显著(χ2=11.45,P=0.001),C等位基因频率差异显著(χ2=30.93,P=0.000),采用Logistic回归纠正性别、年龄、高血压、吸烟及饮酒等因素后仍差异显著(均P<0.01):而两组rs11887092、rs1040186位点的基因型和等位基因频率差异无统计学意义.结论 COL3A1基因启动子区rs2138533位点的CT多态性与颅内动脉瘤发病相关.     

ABCB1基因多态性与中国汉族人群动脉粥样硬化性血栓性脑梗死的相关性研究

目的探讨ATP结合盒B亚家族成员1转运蛋白(ABCB1)基因多态性与中国汉族人群动脉粥样硬化性血栓性脑梗死(ATCI)患者的关系。方法选取392例ATCI患者(脑梗死组)和429例健康对照者(对照组),通过SNa Pshot方法对ABCB1基因的rs1128503和rs1045642位点进行SNP检测。比较两组的基因型和等位基因分布频率,分析基因型与临床表型的关系。结果脑梗死组rs1128503和rs1045642位点的基因型及等位基因分布频率与对照组比较,无统计学意义(P0.05)。女性ATCI患者的rs1128503位点TT基因型和CC基因型体重指数高于TC基因型(P=0.007,P=0.011)。女性ATCI患者的rs1045642位点CC基因型低密度脂蛋白-胆固醇水平高于CT基因型(P=0.030)。结论 ABCB1基因多态性与中国汉族人群ATCI的发病无明显相关性。rs1128503位点多态性可能与女性ATCI患者的体重指数有关,rs1045642位点多态性可能与女性ATCI患者的低密度脂蛋白-胆固醇水平有关。