ADRB2基因rs1042713位点多态性与中国人群哮喘易感性关系的荟萃分析

目的:应用meta分析的方法综合评价ADRB2(β-2肾上腺素能受体)基因的SNP位点[Arg16Gly(A46G,rs1042713)]多态性与中国人群哮喘易感性的关系。方法:检索Pubmed、Embase、Web of Knowledge、中国知网、万方、维普等数据库,收集研究ADRB2基因多态性与中国汉族人群哮喘易感性的相关文献。采用Stata12.0软件对符合纳入标准的研究做meta分析。结果:共纳入12篇文献,累计哮喘病例2 193例,对照组2 033例,所有入选文献均满足Hardy-Weinberg遗传平衡定律。Meta分析结果显示,中国人群ADRB2基因rs1042713位点突变基因G携带者(GG+GA)的哮喘发病风险较野生型纯合子(AA)比较,总体并未显著增加(OR=1.08,95%CI=0.82~1.44),但亚组分析显示,G携带者儿童哮喘的发病风险相对增高(OR=1.69,95%CI 0.99~2.87),而成人哮喘的发病风险则相对降低(OR=0.88,95%CI 0.68~1.15)。结论:ADRB2基因rs1042713位点基因多态性与中国儿童哮喘易感性存在一定的相关性,携带G突变基因者可相对增加儿童哮喘的患病风险。     

载脂蛋白M基因多态性与兰州地区汉族人群风湿性疾病易感的相关性分析

目的研究载脂蛋白M(Apo M)基因多态性与兰州地区汉族人群类风湿性关节炎(RA)、系统性红斑狼疮(SLE)和强直性脊柱炎(AS)等疾病易感的相关性。方法针对Apo M基因的2个单核苷酸多态性(SNP)位点rs805296和rs805297设计引物,建立聚合酶链式反应-高分辨率融解曲线分析(PCR-HRM)基因分型方法,对599例RA、194例SLE、179例AS患者和273例健康对照进行病例对照研究,分析其与风湿性疾病易感的相关性。结果 rs805296位点在RA组、SLE组、AS组和健康对照组的基因型频率分别为AA 87.0%、AG 12.7%、GG 0.3%;AA 84.5%、AG 15.0%、GG 0.5%;AA 91.6%、AG 7.3%、GG1.1%;AA 85.0%、AG 15.0%、GG 0%。rs805297位点在RA组、SLE组、AS组和健康对照组的基因型频率分别为GG 38.2%、GT 51.8%、TT 10.0%;GG 44.3%、GT 45.4%、TT 10.3%;GG 37.4%、GT 47.5%、TT 15.1%;GG 40.7%、GT 46.1%、TT13.2%。统计学分析发现只有rs805296位点的基因型分布仅在AS组与健康对照组之间有明显差异,在显性模型下,rs805296位点G基因携带者(杂合突变型AG和纯合突变型GG)患AS的风险明显降低。结论本研究建立的PCR-HRM基因分型方法能够成功实现rs805296和rs805297位点的临床标本分子诊断,并发现rs805296位点与兰州地区汉族人群AS易感密切相关。     

IL-10、MD-1基因单核苷酸多态性与哮喘易感性的相关性研究

目的:分析IL-10基因 rs1800896、rs3024492位点和髓样分化蛋白1(Myeloid differentiation 1,MD-1)基因rs7740529、rs2233128位点单核苷酸多态性(Single nucleotide polymorphism,SNP)与哮喘遗传易感性的相关性以及过敏性鼻炎(Allergic rhinitis,AR)对哮喘遗传易感性的影响.方法:应用Sequenom MassARRAY○ R SNP分型技术对141例哮喘患者和145例正常对照的四个SNP位点(rs1800896、rs3024492、rs7740529、rs2233128)进行基因分型,再将哮喘患者中确定有过敏性鼻炎和无过敏性鼻炎者分别与正常对照组比较.χ2检验统计分析病例组和对照组的基因型频率;采用非条件Logistic回归校正年龄、性别影响,计算比数比(OR)和95%可信区间(CI),以此评价各位点多态性与哮喘遗传易感性的相关性以及过敏性鼻炎对哮喘易感性的影响.结果:(1)IL-10 rs1800896多态性位点GG、GA、AA三种基因型分布频率在哮喘组、哮喘和过敏性鼻炎共患组、哮喘而无鼻炎组的分布频率和对照组相比,差异均有统计学意义(P＜0.001),有无过敏性鼻炎对其影响不明显.相较GG或AA基因型,携带基因型GA的个体,哮喘的患病风险明显降低(OR=0.033,95%CI:0.017～0.065).(2)MD-1 rs7740529位点CC、CT、TT三种基因型分布频率在哮喘患者组、哮喘和过敏性鼻炎共患组、哮喘而无鼻炎组的分布频率和对照组相比,差异也均有统计学意义(P≤0.005),有无过敏性鼻炎对其影响不明显.相比较CC或TT基因型,携带基因型CT的个体,哮喘的患病风险明显降低(OR=0.369,95%CI:0.225～0.606).(3)IL-10 rs3024492位点TA、AA基因型和MD-1 rs2233128位点AG、GG基因型在哮喘人群中的分布频率与对照组相比无统计学意义(P＞0.05).结论:IL-10 rs1800896与MD-1 rs7740529位点多态性与哮喘的遗传易感性相关,其杂合型的患病风险均明显降低,且有无过敏性鼻炎对其影响不明显.     

GPER1基因多态性与自然流产的相关性研究

目的探讨GPER1基因rs10269151位点SNP多态性与流产之间的相关性。方法采用SNa Pshot法对117例自然流产汉族女性和107例对照组女性GPER1基因rs10269151位点进行的基因分型,采用SHEsis进行遗传分析,探讨其基因型和等位基因的频率分布差异。结果 rs10269151位点病例组基因型频率AA 85%、AG 6.84%、GG 92.31%,病例组AA 0.85%、AG6.84%、GG 92.31%,p Value0.05;病例组等位基因频率A 4.27%、G95.73%,对照组3.27%,96.73%,p Value0.05。结论GPER1基因rs10269151位点与自然流产之间缺乏关联性。     

血管内皮细胞功能相关基因多态性与子痫前期的遗传易感性研究

目的探讨血管内皮细胞功能相关基因即内皮型一氧化氮合成酶(eNOS/NOS3)、血管内皮生长因子(VEGF)、胰岛素样生长因子(IGF1)基因的单核苷酸多态性(SNP)与子痫前期(PE)发病的相关性。方法选取2014年7月至2015年5月于南方医科大学附属深圳妇幼保健院分娩的汉族妇女442例,采用SNapshot技术对eNOS、VEGF、IGF基因5个位点进行检测,分析两组间基因型及等位基因频率的差异。结果 (1)深圳地区汉族妇女中暂未发现存在IGF1基因rs5742620位点、NOS3基因27bp-VNTR in intron 4位点的多态性。(2)PE组NOS3基因rs2070744位点AA基因型、A等位基因频率明显低于对照组(95.5%vs99.3%,P=0.007,OR=0.14,95%CI为0.03-0.73;97.4%vs99.7%,P=0.003,OR=0.13,95%CI为0.028-0.632)。(3)PE与对照组比较,NOS3基因rs1799983位点GG、GT、TT基因型及等位基因分布无显著差异;VEGF基因rs3025039位点GG、AG、AA基因型及等位基因分布无显著差异。结论 (1)NOS3基因rs2070744位点可能与深圳地区汉族妇女PE发生有关。(2)NOS3基因rs2070744位点AA基因型、A等位基因可能是本群体PE发病的保护因素。(3)IGF1基因rs5742620位点、NOS3基因27bp-VNTR in intron 4位点为本群体的罕见突变。     

维吾尔族、汉族散发性乳腺癌BRCA1基因rs16941及rs16942位点多态性分析

目的探讨维吾尔族及汉族散发性乳腺癌BRCA1基因单核苷酸多态性(single nucleotide polymorphisms,SNPs)是否存在差异,并分析SNPs位点与肿瘤易感性的关系。方法选取100例散发性乳腺癌(维吾尔族、汉族各50例)及100例乳腺腺病(维吾尔族、汉族各50例)作为分析对象,对BRCA1基因rs16941及rs16942进行DNA测序。结果 rs16941及rs16942的AA、AG、GG基因型在维吾尔族、汉族乳腺癌组之间的分布差异有统计学意义(P=0.009,P=0.017)。肿瘤易感性比较:维吾尔族rs16941位点中AG与AA基因型相比,其能够降低乳腺癌的发病风险(OR=0.964,95%CI:0.260~3.583,P=0.009);维吾尔族rs16942位点中AG与AA基因型相比,其能够增加乳腺癌的发病风险(OR=1.017,95%CI:0.293~3.916,P=0.017)。汉族rs16941位点中AG与AA基因型相比,其能够降低乳腺癌的发病风险(OR=0.824,95%CI:0.210~3.234,P=0.044)。结论 rs16941及rs16942的AA、AG、GG基因型在维吾尔族、汉族乳腺癌组的分布,差异有统计学意义;SNPs与肿瘤易感性有相关性。     

VEGF基因单核苷酸多态性与中国北方汉族人SLE易感性的相关性研究

目的:研究血管内皮生长因子(VEGF)基因单核苷酸多态性(SNP)与中国北方汉族人系统性红斑狼疮(SLE)易感性的相关性。方法:应用Sequenom飞行时间质谱技术检测44例SLE患者和100例正常对照者外周血VEGF基因的SNPs,选择6个VEGF基因的SNP位点:rs2010963、rs3024994、rs3025000、rs3025010、rs3025035和rs833070进行基因分型,用SPSS 11.5软件对数据资料进行统计分析。结果:SLE患者VEGF多态性位点rs2010963、rs3024994、rs3025000、rs3025010、rs3025035的基因型频率及等位基因频率与正常对照组比较差异无统计学意义(P0.05);VEGFrs833070 A等位基因频率明显高于对照组(31.2%vs20%,χ2=4.547,P=0.033,OR=1.818,95%CI 1.045-3.162)。rs833070 G等位基因在SLE组中关节炎与无关节炎组中频率有显著差异(56%vs80.4%,χ2=5.613,P=0.018,OR=0.336,95%CI 0.134-0.843),rs833070 GG基因型频率明显低于无关节炎组(GGvsAG+AA:28%vs65.2%,χ2=6.684,P=0.010,OR=0.207,95%CI 0.061-0.705),而VEGF rs833070位点基因型、等位基因型的频率与患者血清中ds-DNA抗体、抗Sm抗体、狼疮性肾炎、间质性肺疾病的发生无相关性(P0.05)。结论:VEGF基因SNP点rs833070与北方汉族人SLE发病易感性相关,rs833070位点A等位基因可能增加了SLE患病的易感性,而rs833070 GG基因型及G等位基因型可能是SLE合伴关节炎的保护性基因。     

囊泡相关膜蛋白8基因多态性与冠状动脉粥样硬化性心脏病的相关性研究

目的 研究囊泡相关膜蛋白8(synaptobrevins/vesicle-associated membrane proteins 8,VAMP8)基因rs1010多态性在中国汉族人群中的分布及与冠状动脉粥样硬化性心脏病(简称冠心病)的相关性.方法 采用聚合酶链反应-限制性片段长度多态性技术,对汉族185例冠心病患者及149名正常人VAMP8 rs1010基因多态性,基因型及等位基因频率分布进行研究.结果 研究人群中存在VAMP8 rs1010基因多态性,基因型符合Hardy-Weinberg平衡,冠心病患者A等位基因频率显著高于对照组(67.3%VS 53.0%,P<0.05).Logistic回归分析得出:VAMP8基因(AA+AG)基因型是冠心病的独立危险因素,(AA+AG)基因型比GG基因型的比数比为1.969,95%可信区间为1.032～3.755.结论 VAMP8 rs1010基因多态性与冠心病有关,A等位基因可能是汉族人群冠心病的遗传危险因素.     

VDR和GSDMB基因多态性与湖北地区儿童哮喘的易感性研究

目的:探讨湖北地区儿童VDR基因(rs2239185、rs7975232、rs2525046、rs2228570)和GSDMB基因(rs2305480)单核苷酸多态性(SNP)与儿童哮喘的易感性。方法:采用前瞻性研究方法,纳入158例哮喘患儿(哮喘组)和156例健康儿童(对照组),运用Sequenom MassArray质谱芯片微列阵技术对两组对象VDR和GSDMB基因的多个SNP位点进行基因分型,分析上述各位点在两组间分布的差异,筛选湖北地区儿童哮喘易感SNP位点。结果:GSDMB基因rs2305480位点GG、AG、AA 3种基因型频率在哮喘组中分别为64.56%、4.43%、31.01%,在对照组中分别为51.28%、8.97%、39.74%,两组间GG基因型分布频率差异具有统计学意义(P<0.05);GSDMB基因rs2305480位点的等位基因G、A在哮喘组中的分布频率分别为80.06%、19.94%,在对照组中的分布频率分别为71.15%、28.85%,两组间的等位基因A分布频率差异具有统计学意义(P<0.05);GSDMB基因rs2305480位点不同基因分布...     

广西壮族及汉族人群CD40配体基因rs3092923G/A和rs3092929A/C遗传多态性的研究

目的探讨CD40配体基因rs3092923G/A和rs3092929A/C多态性位点在广西壮族及汉族人群中的分布,同时比较其基因型及等位基因频率分布在不同种族人群之间以及同一种族不同性别之间存在的差异。方法采用单碱基延伸PCR的检测方法,分析201名广西汉族人和199名广西壮族人的CD40配体基因rs3092923G/A和rs3092929A/C多态性。结果在广西壮族人群中,CD40配体基因rs3092923G/A位点AA、AG与GG基因型频率和rs3092929A/C位点AA、AC与CC基因型频率均为86.4%、7.5%和6.0%,rs3092923G/A位点的A、G等位基因频率和rs3092929A/C位点的A、C等位基因频率均为90.2%、9.8%;在广西汉族人群中,CD40配体基因rs3092923G/A位点AA、AG与GG基因型频率和rs3092929A/C位点AA、AC与CC基因型频率均为93.0%、4.0%、3.0%,rs3092923G/A位点的A、G等位基因频率和rs3092929A/C位点的A、C等位基因频率均为95.0%、5.0%。将这2个多态性位点基因型分布频率在2个民族人群中比较,差异均无显著性(P均>0.05),而等位基因频率却有着显著性差异(P均<0.05)。另外,将这2个位点多态性分布频率在男女性别之间作比较,差异都没有显著性(P均>0.05)。进一步与人类基因组计划公布的4个人群相比,广西汉族人群的rs3092923G/A和rs3092929A/C 2位点基因型和等位基因频率与非洲、日本、欧洲和北京人群比较,差异都具有显著性(P均<0.05)。结论在广西地区壮族及汉族人群中存在着CD40配体基因多态性。广西汉族人群CD40配体基因多态性的分布频率同其他种族人群比较存在着显著性差异,这种差异可能是导致与CD40配体相关的疾病在不同种族人群间的临床表现以及发病率存在明显不同的原因之一。     

Association of RIP2 gene polymorphisms and systemic lupus erythematosus in a Chinese population

The aim of this study was to investigate the association of receptor interacting protein 2 (RIP2) single-nucleotide polymorphisms (SNPs) with susceptibility to systemic lupus erythematosus (SLE) in a Chinese population. A case-control study was performed on the SNPs rs16900617 and rs16900627 in 590 Chinese SLE patients and 660 healthy controls. These SNPs were typed by TaqMan allele discrimination assays. We found a significant association of rs16900617 G allele [odds ratio (OR) = 0.54, 95% confidence interval (CI) 0.41-0.72] and rs16900627 G allele (OR = 1.28, 95% CI 1.04-1.58) with SLE. Significant differences in genotype frequency distribution were also found in SLE and control individuals (rs16900617: AG versus AA, OR = 0.59, 95% CI 0.44-0.81; GG versus AA, OR = 0.08, 95% CI 0.01-0.65; AG + GG versus AA, OR = 0.55, 95% CI 0.41-0.75; rs16900627: AG versus AA, OR = 1.51, 95% CI 1.17-1.93; AG + GG versus AA, OR = 1.43, 95% CI 1.13-1.82). Analysis of the haplotypes revealed that two haplotypes of AG and GA were also significantly associated with SLE (OR = 1.37, 95% CI 1.11-1.70; OR = 0.60, 95% CI 0.45-0.79). Our findings suggest that the RIP2 gene polymorphisms may be associated with susceptibility to SLE in the Chinese population.     

Genetic correlation of SOCS3 polymorphisms with infantile asthma: an evidence based on a case-control study

Objective: In order to explore the relevance of SOCS3 gene polymorphisms with infantile asthma and provide evidence for the ethology of infantile asthma, we conducted this case-control study. Methods: A total of 273 children were enrolled for study in this article, including 119 children with asthma and 154 healthy controls frequency-matched with the former in sex and age. The genotyping of SOCS3 rs4969170, rs4969168 polymorphisms in all subjects were performed using TaqMan probe method. Odds ratio (OR) with 95% confidence interval (CI) was used to represent the association strength between SOCS3 polymorphisms and infantile asthma and calculated by χ² test which was conducted to check the Hardy-Weinberg equilibrium (HWE) in the control group. Results: The genotypes distributions of SOCS3 polymorphisms in controls conformed to HWE. Compared with GG/GA genotype in SOCS3 rs4969170, AA genotype obviously increased the susceptibility to asthma in children (OR=2.556, 95% CI=1.377-4.744) and A allele also made the same conclusion (OR=2.287, 95% CI=1.311-3.991). Differently in rs4969168, AG and AG/GG genotypes distributions had significant differences in two groups (P=0.036, 0.043). This two polymorphisms existed the linkage disequilibrium and the haplotype analysis showed that A-G and A-A haplotypes in rs4969170-rs4969168 increased 1.855 and 0.863 times risk of asthma development in children, respectively. Conclusions: A significant relevance involved in SOCS3 gene polymorphisms and infantile asthma development based on a Chinese Han population.     

2型糖尿病家系与尾加压素2基因多态性

目的探讨我国常州地区汉族家系2型糖尿病与尾加压素2(urotensinⅡ,UT-Ⅱ)基因rs228648多态性位点的关系。方法采用家系内外对照的病例对照研究,并设置无家族史的普通病例组,应用聚合酶链反应-限制性片段长度多态性技术,对rs228648(G/A)多态性进行基因分型。结果家系中携带AG和AA基因型者患病风险分别为GG型的1.98(95%可信区间=1.19～3.29)和2.46(95%可信区间=1.39～4.34)倍,家系病例组A等位基因频率高于内对照组及普通病例组(P=0.01)。内对照组A等位基因频率高于外对照组(P=0.001)。内对照组携带AG基因型者的胰岛素抵抗指数、胰岛素敏感指数以及胰岛初期分泌功能指数均高于GG基因型者(P<0.05)。结论rs228648多态性位点变异可能是2型糖尿病的危险因素之一,家系人群该基因变异与其胰岛功能间存在关联。     

Analysis of Single Nucleotide Polymorphisms in the NOS2A Gene and Interaction with Smoking in Age‐Related Macular Degeneration

Age‐related macular degeneration (AMD) is a complex degenerative retinal disease influenced by both genetic and environmental risk factors. We assessed whether single nucleotide polymorphisms (SNPs) in the NOS2A gene increase risk and modulate the effect of smoking in AMD. 998 Caucasian subjects (712 AMD cases and 286 controls) were genotyped for 17 SNPs in NOS2A. Multivariable logistic regression models containing SNP genotypes, age, sex, smoking status and genotype/smoking interaction were constructed. SNP rs8072199 was significantly associated with AMD (OR = 1.3; 95% CI : 1.02, 1.65; P= 0.035). A significant interaction with smoking was detected at rs2248814 (P= 0.037). Stratified data by genotypes demonstrated that the association between AMD and smoking was stronger in carriers of AA genotypes (OR = 35.98; 95% CI: 3.19, 405.98) than in carriers of the AG genotype (OR = 3.05; 95% CI: 1.36, 6.74) or GG genotype (OR = 2.1; 95% CI: 0.91, 4.84). The results suggest a possible synergistic interaction of AA genotype with smoking, although the result bears replication in larger samples. Our data suggests that SNPs in the NOS2A gene are associated with increased risk for AMD and might modulate the effect of smoking on AMD.     

Association between HSD17B1 rs605059 polymorphisms and the risk of uterine diseases: a systemic review and meta-analysis

The aim of this study was to evaluate the HSD17B1 gene polymorphisms in the risks of endometrial cancer, endometriosis and uterine leiomyoma by meta-analysis. A comprehensive electronic search was conducted in PubMed, Medline (Ovid), Embase, Weipu, Wanfang and CNKI. The pooled ORs were performed using the Revman 5.2 softerware. 8 case-control studies were included: 3 were about endometrial cancer, 4 were about endometriosis and 1 was about uterine leiomyoma. The result showed no significant association between HSD17B1 rs605059 gene polymorphisms and risks of endometrial cancer (AA vs. AG+GG: OR = 1.11, 95% CI = 0.94-1.32; AA+AG vs. GG: OR = 1.79, 95% CI = 0.42-7.52; AG vs. AA+ GG: OR = 0.87, 95% CI = 0.76-1.00; AA vs. GG: OR = 1.43, 95% CI = 0.62-3.30; A vs. G: OR = 1.00, 95% CI = 0.91-1.11) or endometriosis (AA vs. AG+GG: OR = 0.99, 95% CI = 0.75-1.32; AA+AG vs. GG: OR = 1.73, 95% CI = 0.92-3.25; AG vs. AA+ GG: OR = 1.24, 95% CI = 1.00-1.53; AA vs. GG: OR = 1.54, 95% CI = 0.79-2.97; A vs. G: OR = 1.23, 95% CI = 0.90-1.68). No association was found in a subgroup analysis based on Asian ethnicity for endometriosis. This meta-analysis suggested that HSD17B1 rs605059 polymorphisms were not associated with the risks of endometrial cancer and endometriosis. Further studies are needed to validate the conclusion and clarify the relationship between HSD17B1 rs605059 polymorphisms and the risk of uterine leiomyoma.     

Association of single nucleotide polymorphisms in interleukin 12 (IL-12A and -B) with asthma in a Chinese population

Increasing evidence has indicated that genetic variants may contribute to immune dysregulation and susceptibility to noninfectious inflammatory diseases. Cytokines, including interleukin 12 (IL-12), play a key role in the regulation of the immune system. The aim of this study was to investigate whether single nucleotide polymorphisms (SNP) in IL-12A and IL-12B were associated with asthma in a Chinese population. Genotype characteristics were determined in 197 asthma patients and 369 controls by the polymerase chain reaction-restriction fragment length polymorphism method and DNA sequencing assay. The genotype and allele frequencies of IL-12A rs568408 demonstrated significant differences between cases and controls (p < 0.001). The AC genotype of rs3212227 was associated with a significantly decreased risk of asthma compared with the AA genotype (p = 0.036). The subjects carrying combined genotypes (rs568408 AG and rs3212227 AC/CC) at both loci had a 2.05-fold increased asthma risk compared with those carrying all other genotypes (p = 0.001). In contrast, individuals carrying combined genotypes of rs568408 GG and rs3212227 AC/CC were associated with a significantly decreased risk of asthma compared with those carrying the combined genotypes of rs568408GG and rs3212227AA (p = 0.009). No significant difference was reported for rs2243115 between cases and controls. These results suggest that the SNPs in IL-12A rs568404 and IL-12B rs3212227 may individually and jointly contribute to the risk of asthma in a Chinese population.     

Association of CAV1 polymorphisms with the risks of breast cancer: A systematic review and meta-analysis

BackgroundCaveolin-1 (CAV1) polymorphisms have been shown to correlated with breast cancer risk in previous studies. However, the role of CAV1 polymorphisms still remained indecisive, and dual functions of CAV1 was demonstrated in breast cancer development. Consequently, a meta-analysis to evaluate and summarize the association of the CAV1 polymorphisms with breast cancer susceptibility.Material and methodsExtensive search was performed in PubMed, Web of Science, Google scholar, EMBASE.com, CNKI and Wanfang searching platform up to March 2019. The Newcastle–Ottawa Scale (NOS) were used to evaluate the quality of each study. The Odds ratios (ORs) and the 95% confidence intervals (CIs) were analyzed to evaluate the strength of the associations in five genetic models. Inter-study heterogeneity was quantified using the I-squared (I²) test. In addition, the Egger’s test and Begg’s test were applied to evaluate the publication bias.Results4 case-control studies with 2115 cases and 2138 controls were enrolled into this analysis. There was a significant association between rs3807987 polymorphism of CAV1 and breast cancer in allele comparison (A vs. G: OR = 1.288, 95％CI = 1.162–1.428, P < 0.001), heterozygote comparison (AG vs. GG: OR= 1.422, 95％CI=1.233–1.639, P < 0.001), and dominant comparison (AA+AG vs. GG: OR=1.395, 95％CI=1.228-1.586, P < 0.001). A significant association of rs3807987 polymorphism in allele comparison (A vs. G: OR=1.238, 95％CI=1.109–1.383, P < 0.001), heterozygote comparison (AG VS. GG: OR=1.466, 95％CI=1.267–1.697, P < 0.05), and dominant comparison (AA+AG vs. GG: OR=1.384, 95％CI=1.209–1.585, P < 0.001) was also founded amongst Chinese population. A significant association between rs7804372 polymorphism and breast cancer amongst Chinese population in recessive comparison (AA vs. AT + TT: OR = 0.730, 95％CI = 0.567–0.940, P = 0.015) was identified. No significant association between breast cancer risk and rs1997623 was found.ConclusionCAV1 rs3807987 and rs7804372 polymorphisms are associated with the change of breast cancer risk. More well-designed and large studies in various populations are needed to further elaborate these associations.     

Sex-specific Association of the Zinc Finger Protein 259 rs2075290 Polymorphism and Serum Lipid Levels

Background: Little is known about the association of ZNF259 rs2075290 single nucleotide polymorphism (SNP) and serum lipid levels in the Chinese population. This study aimed to detect the association of ZNF259 rs2075290 SNP and environmental factors with serum lipid levels between males and females in the Mulao and Han populations.Methods and Results: Genotyping of ZNF259 rs2075290 SNP was performed in 788 of Mulao and 778 of Han participants using polymerase chain reaction and restriction fragment length polymorphism. The genotype frequencies were significantly different between Mulao and Han populations (AA, 50.1% Vs 58.9%; AG, 42.3% Vs 35.7%; GG, 7.6% Vs 5.4%, P = 0.002) and between Han males and females (AA, 64.5% Vs 55.2%; AG, 28.3% Vs 40.6%; GG, 7.2% Vs 4.2%, P = 0.001). Serum levels of triglyceride (TG) in Mulao males, and total cholesterol (TC), TG and low-density lipoprotein cholesterol (LDL-C) in Mulao females were different between the AA and AG/GG genotypes (P < 0.05-0.001). Serum TC, LDL-C and apolipoprotein (Apo) A1 levels in Han males, and TG and ApoB levels and ApoA1/ApoB ratio in Han females were different between the AA and AG/GG genotypes (P < 0.05-0.001). An interaction between ZNF259 rs2075290 polymorphism and male gender on serum TC, LDL-C, and ApoA1 levels was noted in Han population (P < 0.05-0.01) but not in Mulao''s.Conclusions: The subjects with AG/GG genotype in Mulao males and females and Han females have less favorable lipid profiles than those with AA genotype. In contrast, the subjects with AG/GG genotype in Han males have more favorable lipid profiles than those with AA genotype. These findings suggest that the association between ZNF259 rs2075290 SNP and serum lipid levels might have ethnic- and/or sex-specificity.     

Association of MCP-1 promotor polymorphism with disease severity of Crimean-Congo hemorrhagic fever

Crimean-Congo hemorrhagic fever (CCHF) is a thick-borne viral zoonotic disease. The pathogenesis and the reasons why cases have a mild or severe course in CCHF have not yet been explained. In this study, we investigated the relationship between promoter -2518 A/G single-nucleotide polymorphism (SNP) of the MCP-1 gene and the clinical course of CCHF. The MCP-1-2518 A/G SNP (rs1024611) frequency was examined in 128 virologically/serologically confirmed CCHF patients and 181 healthy controls by using the PCR-RFLP method. When CCHF patients and controls were compared, no significant difference was found between genotype distributions and allele frequencies of the -2518 A/G SNP of MCP-1 gene (P > .05). Compared to the AA genotype, both AG (P = .016; OR = 2.57) and GG genotype (P = .039; OR = 3.43) were found with significantly higher frequencies in mild/moderate cases than in severe cases. Compared to the AG + GG genotype, AA showed a significant risk for severe CCHF (60.0% vs 38.4%, P = .02; OR = 2.41). In contrast, the AG genotype showed a significant protective effect against severe disease compared to AA + GG genotype (29.1% vs 47.9%, P = .013; OR = 2.58). Compared to mild/moderate cases, the A allele was found to be significantly higher in severe cases (0.745 vs 0.623, P = .039; OR = 1.77). However, no significant relationship was found between fatal and nonfatal cases in terms of genotype or allele frequencies (P > .05). In conclusion, both -2518 AA genotype and A allele of MCP-1 were associated with disease severity, and the AG genotype had a protective effect against a severe disease course in CCHF patients.     

Susceptibility to tuberculosis is associated with TLR1 polymorphisms resulting in a lack of TLR1 cell surface expression

Human TLR1 plays an important role in host defense against Mycobacterium tuberculosis. Our aim was to analyze the association of the loss of TLR1 surface expression and TLR1 SNPs with susceptibility to TB. TLR1neg and TLR1pos cells from healthy individuals were identified by flow cytometry and compared by sequencing. TLR1 expression was measured using quantitative real-time PCR and immunoblotting. TLR1 SNP analyses of healthy individuals and TB patients from EU-C and Ghana were performed, and association of the TLR1 genotypes with increased risk of developing TB was statistically evaluated. Lack of TLR1 surface expression accompanied by impaired function was strongly associated with TLR1 SNP G743A. Genotyping of EU-C controls and TB patients revealed an association of TLR1 743A/1805G alleles [OR 2.37 (95% CI 1.13, 4.93), P=0.0219; OR 2.74 (95% CI 1.26, 6.05), P=0.0059] as well as TLR1neg 743AA/1805GG versus TLR1pos genotypes 743AG/1805TG [OR 4.98 (95% CI 1.64, 15.15), P=0.0034; OR 5.70 (95% CI 1.69, 20.35), P=0.0015] and 743AG + GG/1805TG + TT [OR 3.54 (95% CI 1.29, 9.90), P=0.0086; OR 4.17 (95% CI 1.52, 11.67), P=0.0025] with increased susceptibility to TB. No association of G743A with TB was found in Ghana as a result of a low frequency of genotype 743AA. Our data gain new insights in the role of TLR1 in M. tuberculosis defense and provide the first evidence that TLR1 variants are associated with susceptibility to TB in a low-incidence country.