TPM1基因相关多态性与中国北方汉族人群非综合征性唇腭裂的相关研究

目的：分析TPM1基因上游功能区3个单核苷酸多态性（single nucleotide polymorphisms, SNPs）位点与中国北方人群非综合征性唇腭裂（nonsynodromic orofacial clefts, NSOC）的关联。方法：通过对335个NSOC样本及572个健康对照样本外周血DNA的研究对目的位点行聚合酶链反应（polymerase chain reaction, PCR）扩增、DNA测序、基因分型。利用PubMed数据库（https://www.ncbi.nlm.nih.gov/pubmed）采集相关多态性位点基本信息。使用SHEsis在线软件、SPSS 20.0软件对SNPs位点的等位基因频率、基因型及单体型进行分析研究。结果：TPM1相关rs1873147、rs7179658和rs4775599完全连锁,rs1873147在唇腭裂（cleft lip and palate, CLP）组与健康对照组之间的等位基因频率差异有统计学意义（P=0.035）。结论：TPM1相关rs7179658、rs1873147和rs477559与中国北方汉族人群NSOC可...     

宁夏回汉族人群中FOXE1基因多态性与非综合征型唇腭裂的相关性研究

目的:探讨宁夏回汉人群FOXE1基因rs3758249、rs10217225和rs4460498位点单核苷酸多态性与非综合征型唇腭裂发病的相关性。方法:收集宁夏地区回、汉族非综合征型唇腭裂患者207例,其中回族69例,汉族138例;正常对照组292例,其中,回族72例,汉族220例。采用PCR-RFLP方法检测FOXE1基因rs3758249、rs10217225和rs4460498多态位点的基因型,进行病例对照分析。结果:在回汉人群中,与正常对照组比较,单纯唇裂组和唇腭裂组rs3758249、rs10217225和rs4460498多态位点基因型和等位基因频率存在统计学差异(P0.05);而在单纯腭裂组差异无显著性(P0.05)。分别对汉族和回族人群内病例对照分析,发现唇裂并唇腭裂组rs3758249、rs10217225和rs4460498多态位点基因型在汉族和回族人群中的均存在差异性(P0.05)。病例组内进行回、汉族基因型比较,发现rs10217225多态性在宁夏地区回、汉患者中存在差异性(P0.05),而rs3758249、rs4460498差异没有显著性。结论:在宁夏回汉族人群中,FOXE1基因的rs3758249、rs10217225和rs4460498位点单核苷酸多态性与非综合征型唇腭裂存在相关性;回汉族人群间基因型没有统计学差异。     

宁夏回汉族人群Wnt3基因单核苷酸多态性与非综合征型唇腭裂相关性的研究

目的 探讨宁夏回汉族人群中Wnt3基因rs142167和rs7216231位点单核苷酸多态性（SNP）与非综合征型唇腭裂（NSCL/P）的相关性。方法 收集宁夏地区回汉族人群非综合征型唇腭裂患者371例为病例组,其中汉族患者166例,回族患者205例;收集患者父亲196例,患者母亲224例,其中150例患者为NSCL/P核心家系;258例健康新生儿为对照组,其中汉族190例,回族68例。采用聚合酶链反应-限制性片段长度多态性（PCR-RFLP）方法检测Wnt3基因多态位点rs142167和rs7216231基因型,对比分析2组的基因型和等位基因,并进行传递不平衡检验（TDT）和以家系为基础的相关性检验（FBAT）分析。结果 回汉族人群病例组与对照组比较及其民族分层比较,唇裂、腭裂、唇腭裂及总病例组rs142167和rs7216231位点均无统计学差异（P＞0.05）。TDT分析结果显示：rs142167和rs7216231位点的等位基因均不存在过传递（P＞0.05）。FBAT分析结果显示：单倍型G-G具有统计学意义（P<0.05）。结论 Wnt3基因多态性与宁夏地区回汉族人群非综合征型唇腭裂不存在相关性。     

GCH1基因多态性与黑龙江人群非综合征性唇腭裂的关联研究

目的为了评估GCH1基因多态性在不同民族不同地区非综合征性唇腭裂中的作用,本实验研究GCH1基因在黑龙江地区与NSCL/P相关敏感性的关系。方法收集了GCH1基因研究组血样314例对照组和280例NSCLP患者作为研究对象,运用SNaPshot的方法GCH1基因的3个SNPs位点(rs17128050,rs8004018,和rs17128077)进行基因分型。对样本的等位基因和基因型频率进行分析,采用卡方检验(χ~2检验)。统计学分析全部采用SAS v9.1.3统计学软件,P<0.05认为差异有统计学意义。结果结果显示,GCH1 rs17128050(P=0.04)、GCH1 rs8004018(P=0.02)与对照组有显著性差异;CLP组GCH1 rs17128050(P=0.03)、GCH1 rs8004018(P=0.02)与对照组比较有显著性差异。结论本实验研究证明GCH1基因单核苷酸多态性与黑龙江人群非综合征性唇腭裂之间有显著相关。     

中国西部汉族人群血小板源性生长因子C基因单核苷酸多态性与非综合征型唇腭裂相关性研究

目的探究中国西部汉族人群血小板源性生长因子C(PDGF-C)基因的靶向单核苷酸多态性(SNPs)位点rs4691383、rs7667857及其基因型以及环境暴露因素与非综合征型唇腭裂(NSCL/P)发生的相关性。方法收集268个NSCL/P病例—父母核心三人家系,采用聚合酶链反应—限制性酶切片段长度多态法和直接测序法对2个靶向SNPs位点(rs4691383、rs7667857)进行基因分型,使用哈温平衡检验、连锁不平衡检验、传递不平衡检验、单倍型关联分析等方法进行统计学分析。同时收集纳入对象所填写的唇腭裂流行病学研究问卷,对PDGF-C基因和环境暴露因素之间是否存在交互作用进行条件Logistic回归分析。结果 PDGF-C基因rs4691383位点的A等位基因和rs7667857位点的G等位基因在NSCL/P发生中存在过度传递(P<0.05)。孕妇吸烟/被动吸烟史、叶酸补充史、环境有害气体长期吸入史3个环境暴露因素与PDGF-C基因的SNPs位点基因型之间均不存在交互作用(P>0.05)。结论 PDGF-C基因rs4691383位点和rs7667857位点多态性与中国西...     

TCN2基因与非综合征性唇腭裂的关系

目的研究叶酸代谢相关基因TCN2与中国人群中非综合征性唇腭裂的关系。方法通过聚合酶链反应-限制性片段长度多态性,在108例非综合征性唇腭裂患者和184名正常对照个体中,对TCN2基因2个单核苷酸多态性（SNP）（rs10418和rs1801198）进行检测。利用拟合优度卡方检验,分析基因型分布频率是否符合Hardy-Weinberg平衡定律;应用UNPHASED软件包分析单个单核苷酸多态性位点以及两个位点单倍型与非综合征性唇腭裂的相关性。结果 2个SNP位点基因型频率分布均符合Hardy-Weinberg平衡;等位基因分布和单倍型组合在非综合征性唇腭裂患者与对照组之间无显著性差异;rs10418 TT基因型能增加非综合征性唇腭裂患病风险。结论 TCN2基因rs10418 TT基因型是非综合征性唇腭裂的危险因素。     

非综合征型唇腭裂易感基因的研究进展

<正>唇腭裂(cleft lip and palate,CLP)是常见的先天性发育畸形,全世界发病率为1/500～1/1 000。我国为唇腭裂高发国家,发病率高达1.82‰,总发生率占我国出生缺陷的14.01%。先天性唇腭裂常分为综合征型唇腭裂(syndromic cleft lip and/or cleft lip,SCL/P)和非综合征型唇腭裂(nonsyndromic cleft lip and/     

染色体10q25位点多态性与中国非综合征性唇腭裂的关联研究

目的:研究染色体10q25上2个单核苷酸多态性(single nucleotide polymorphisms,SNP)位点rs7078160、rs4752028与中国人群非综合征性唇腭裂(non-syndromic cleft lip with or without cleft palate,NSCL/P)发病的相关性。方法:收集180例NSCL/P患者作为病例组,并按照表型分为单纯唇裂组、唇腭裂组、单纯腭裂组,将单纯唇裂组和单纯腭裂组合并为唇/腭裂组;选取360名健康人作为对照组。采集病例组和对照组的外周血血样并提取DNA。对上述2个SNP设计引物,PCR扩增其序列,通过二代测序进行基因型分型。利用SPSS19.0软件包中的χ2检验对病例组与对照组的基因型以及等位基因频率进行分析。结果:rs7078160的等位基因频率在唇/腭裂组与对照组中的差异最为显著(P=0.008,OR=1.500,95%CI=1.116~2.016),rs4752028位点的等位基因频率在唇/腭裂组和对照组间亦存在显著差异(P=0.028,OR=1.424,95%CI=1.041~1.948)。结论:染色体10q25区域的rs7078160和rs4752028位点与中国人群非综合征性唇腭裂的发病相关。     

中国北方人群非综合征性唇腭裂与BMP4基因多态性的关系

目的探讨BMP4基因rs17563多态性与中国北方人群非综合征性唇腭裂的相关性。方法使用聚合酶链反应-限制性内切酶片段长度多态性分析(PCR-RFLP)方法,在116例非综合征性唇腭裂患者和123名健康对照中,对BMP4基因单核苷酸多态性进行检测。利用SPSS13.0软件分析BMP4基因多态性与非综合征性唇腭裂的相关性。结果 BMP4基因型频率分布符合Hardy-Weinberg平衡。在非综合征性唇腭裂组中CC纯合子明显高于健康对照组,差异有统计学意义(P<0.001)。结论 BMP4基因rs17563多态性可能与中国北方人群非综合征性唇腭裂的发生相关。     

干扰素调节因子6基因多态性与非综合征型唇腭裂的相关性研究

目的探讨干扰素调节因子6（IRF6）基因rs642961和rs4844880位点单核苷酸多态性与非综合征型唇腭裂的相关性。方法收集宁夏地区非综合征型唇腭裂患者186例,采用聚合酶链反应-限制性片段长度多态性（PCRRFLP）方法检测IRF6基因多态位点rs642961和rs4844880基因型,进行病例对照分析、传递不平衡检验（TDT）。结果与正常对照组比较,唇裂组和唇腭裂组rs642961和rs4844880位点的AA基因型和A等位基因的频率存在统计学差异（P<0.05）,腭裂组均没有意义（P=0.15, P=0.967）;TDT研究发现IRF6基因rs642961位点的A等位基因和rs4844880位点的A等位基因在唇裂和唇腭裂患者中存在过传递（P<0.05）;2个位点在腭裂组均没有统计学意义（P=0.91,P=0.95）。结论IRF6基因多态性与非综合征型唇腭裂存在较强的相关性。     

宁夏地区非综合征型唇腭裂环境因素的研究

目的 探讨宁夏地区非综合征型唇腭裂（NSCL/P）发病相关环境因素。方法 采用病例对照研究方法纳入NSCL/P患者453例,正常新生儿452例。对研究对象进行问卷调查,利用SPSS 16.0统计软件对数据进行卡方检验和Logistic回归分析。结果 NSCL/P患病类型构成比为唇裂︰唇裂合并腭裂︰腭裂=1︰2.02︰1.51。Logistic回归分析显示妊娠期发生异常、妊娠期感染、流产史、孕前孕中服用药物、饮茶、吸烟、饮酒、居住地附近工厂为危险因素（P<0.05）。单胎、早孕反应、食用豆制品食物、水果为保护因素（P<0.05）。结论 加强母亲孕期饮食均衡,避免感染、流产、服用药物以及不良生活习惯对降低NSCL/P的发生具有重要意义。     

Association between BMP4 gene polymorphisms and cleft lip with or without cleft palate in a population from South China

ObjectivePrevious studies have suggested an association between several polymorphisms of the BMP4 gene and susceptibility to non-syndromic cleft lip with or without cleft palate (NSCL/P) in various populations. However, this association may vary according to ethnic group and the form of NSCL/P. This study analyzed the association between the BMP4 gene polymorphisms rs762642, rs17563, and rs10130587 with the risk of cleft lip only (CLO), cleft palate only (CPO), and cleft lip with palate (CLP) in a population from South China.MethodsThis case-control study included 165 patients with NSCL/P (53 patients with CPO, 52 with CLO, and 60 with CLP) and 52 healthy volunteers. Peripheral blood samples were collected from all subjects to genotype the rs762642, rs17563, and rs10130587 polymorphisms by direct sequencing. Genotype and allelic frequencies of these polymorphisms were compared between healthy volunteers and patients with various forms of NSCL/P.ResultsThe genotype and allelic frequencies of rs762642 differed significantly between subgroups (CPO and CLP) and normal controls, whereas a significant difference was observed only in the CLO subgroup for the rs17563 polymorphism and in the CLO and CLP groups for the rs10130587 polymorphism. In addition, we identified a novel association of a BMP4 gene polymorphism, which was in linkage disequilibrium with the rs10130587 polymorphism, with CLO and CLP.ConclusionThe BMP4 gene polymorphisms rs762642, rs17563, and rs10130587 exhibit different associations with different forms of NSCL/P, suggesting that different forms of NSCL/P may have different etiologies.     

VAX1 gene associated non-syndromic cleft lip with or without palate in Western Han Chinese

ObjectiveNon-syndromic cleft lip with or without palate (NSCL/P) is one of the most common human birth defects, it results from multiple genetic and environmental risk factors. Recently, GWA studies identified associations between NSCL/P and two genetic risk loci, rs7078160 and rs4752028, at VAX1.DesignCurrently, we tried to investigate the roles of the two loci among 302 NSCL/P trios (129 non-syndromic cleft lip only (NSCLO) trios and 173 non-syndromic cleft lip and cleft palate (NSCLP) trios) from Western Han Chinese. The two SNPs were genotyped by SNPscan method; Hardy–Weinberg equilibrium test, allelic TDT and parent-of-origin effect were performed by PLINK software, and genotypic TDT and haplotype by FBAT software.ResultsAllelic TDT analysis revealed allele A at rs7078160 was over-transmitted among NSCL/P group (P = 0.0086, OR_transmission = 1.36, 95%CI: 1.08–1.72). Parent-of-origin effect analysis revealed a paternal special over-transmission of allele A at rs708260 in NSCL/P group (P = 0.0079). Haplotype AC of rs7078160-rs4752028 was significant over-transmitted in the NSCL/P group.ConclusionsOur study firstly confirmed that allele A at rs7078160 at VAX1 gene was a risk factor for NSCL/P in Western Han Chinese population.     

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目的    研究亚甲基四氢叶酸还原酶（MTHFR）基因 C677T多态性与山东地区非综合征性唇腭裂（NSCL／P）的相关性。方法    于2008 年 9月在山东省优生技术重点实验室采用聚合酶链反应-限制性片段长度多态性（ PCR-RFLP）分析,对2006 年8月至2008年8月曾在齐鲁医院治疗的来自山东地区NSCL／P患儿家庭34户和健康查体的正常儿童家庭46户的家庭成员MTHFR基因的C677T基因型进行检测。结果    携带T等位基因的父母,其子代患NSCL／P的危险性是不携带T等位基因父母的子代的2.420倍;母子都是TT突变纯合子,子代患NSCL／P的危险性是母子为非TT纯合子的4.162倍;子代是TT突变纯合子患NSCL／P的危险性是非TT纯合子的3.812倍。结论    山东地区NSCL／P与MTHFR基因 C677T的多态性相关,与父母的基因型存在联系;T基因在母子组合的研究中有统计学意义,父母传递给子代的T等位基因对后代的患病有重要作用。     

No evidence for a role of CRISPLD2 in non-syndromic cleft lip with or without cleft palate in an Italian population

Non-syndromic cleft lip with or without cleft palate (NSCLP) is a malformation with variable phenotypes, resulting from a mixture of genetic and environmental factors. Some studies have supported a role for the 16q24 region and its candidate gene, CRISPLD2, in clefting. A replication study is necessary to confirm these findings. The aim of the present study was to test, by genetic linkage and association analyses, whether the candidate gene, CRISPLD2, represents a risk factor for NSCLP. The analysis of 39 multigenerational families provided formal exclusion of a linkage between NSCLP and the CRISPLD2 locus under different genetic models and non-parametric analyses. The family-based study of 239 unrelated probands and their parents revealed no association between any particular allele or haplotype and NSCLP. Therefore, the present investigation did not support the hypothesis of the involvement of CRISPLD2 in NSCLP malformation, at least with regard to the Italian population.     

非综合征性唇腭裂与同源异型盒基因1多态性的相关性研究

目的采用聚合酶链反应- 单链构象多态性（PCR- SSCP）方法研究同源异型盒基因（MSX）1外显子1的编码区，探讨非综合征性唇腭裂（NSCL/P）患者MSX1基因外显子1的编码区内是否存在基因突变。方法采用聚合酶链反应（PCR）和单链构象多态性（SSCP）方法，以45名健康人为对照组，45名NSCL/P患者作为研究对象，分析MSX1基因多态性。结果SSCP分析显示NSCL/P患者（45名）与对照组（45名）样本的电泳速率相同，提示无多态性存在。结论MSX1基因外显子1未发现多态性的存在，其与NSCL/P患者之间无明显相关性。     

非综合征性唇腭裂的染色体基因位点研究进展

唇腭裂是常见的先天畸形之一,遗传因素在其发生中发挥着极其重要的作用.随着分子遗传学的发展,越来越多的易感基因被发现.本文就与非综合征性唇腭裂相关的染色体基因位点、与单纯性腭裂相关的染色体基因位点研究进展作一综述.     

Non-syndromic cleft lip with or without cleft palate in Asian populations: Association analysis on three gene polymorphisms of the folate pathway

ObjectiveOrofacial clefts (OFCs) are one of the most common birth defects in humans. They are the subject of a number of investigations aimed at elucidating the bases of their complex mode of inheritance involving both genetic and environmental factors. Genes belonging to the folate pathway have been among the most studied. The aim of the investigation was to replicate previous studies reporting evidence of association between polymorphisms of folate related genes and the occurrence of non-syndromic cleft lip with or without cleft palate (NSCL/P), using three independent samples of different ancestry: from Tibet, Bangladesh and Iran, respectively.DesignSpecifically, the polymorphisms rs1801133 of MTHFR, rs1801198 of TCN2, and rs4920037 of CBS, were tested.ResultsA decreased risk of NSCL/P was observed in patients presenting the C677T variant at MTHFR gene (relative risk for heterozygotes = 0.53; 95% confidence interval [C.I.] = 0.32–0.87). The investigated polymorphisms mapping at TCN2 and CBS genes did not provide any evidence of association.ConclusionOverall, these results indicate that NSCL/P risk factors differ among populations and confirm the importance of testing putative susceptibility variants in different genetic backgrounds.