内皮固有型一氧化氮合酶基因单核苷酸多态性与冠心病的相关性研究

探讨内皮固有型一氧化氮合酶(ecNOS)基因的单核苷酸多态性(SNP)与冠心病(CAD)的相关性.提取107例CAD患者和132名健康对照者外周血有核细胞DNA,应用荧光标记单碱基延伸分型技术及寡核苷酸微阵列芯片杂交技术检测ecNOS基因的2个标签SNP(tag SNP)rs7830和rs3918188.结果发现CAD组rs7830的CC基因型频率和C等位基因频率明显低于健康对照组(P＜0.05).两组rs3918188的基因型频率及等位基因频率无统计学差异(P＞0.05).通过对2个SNP进行单倍型分析发现,CAD组和健康对照组的单倍型频率具有统计学差异(P<0.05).结果提示ecNOS基因 rs7830多态性变异及由rs7830和rs3918188构建的CA、AA单倍型是CAD的遗传危险因素.     

组织型激肽释放酶基因多态性与长沙地区汉族人群脑出血的关联研究

目的 分析长沙地区汉族人群脑出血与组织型激肽释放酶(kallikrein 1,KLK1)基因多态性的关系.方法 收集273例散发性脑出血患者和140名正常对照者的外周血标本.采用多重单碱基延伸单核苷酸多态分型技术和DNA测序法检测KLK1基因rs5516及rs5517多态性位点在两组人群中的分布.结果 (1)脑出血组及对照组KLK1基因rs5516多态和等位基因频率分布差异无统计学意义(P>0.05);脑出血组组织型KLK1基因rs5517多态A等位基因频率显著高于对照组(P<0.05).(2)对照组rs5517多态AA及GA基因型携带者舒张压水平显著高于GG基因型携带者(P<0.05);而rs5516位点各基因型亚组间血压水平差异无统计学意义(P>0.05).结论 组织型激肽释放酶基因rs5516多态性与脑出血无关,而组织型激肽释放酶基因rs5517多态性与脑出血存在关联,可能通过影响血压水平而参与脑出血的发生发展.     

云南地区汉族人群PSMB8、PSMB9及TAP2基因多态性与类风湿关节炎的关联研究

目的 研究云南汉族人群中PSMB8、PSMB9及TAP2基因多态性与类风湿关节炎(rheumatoid arthritis,RA)的相关性.方法 应用聚合酶链反应-限制性片段长度多态性法对177例RA患者及288名健康对照PSMB8基因的rs2071543、rs55745125、rs138635403位点和PSMB9基因的rs17587多态性位点进行基因分型,应用多聚酶链反应扩增阻碍系统法对TAP2基因的rs2228396多态性位点进行基因分型.计算基因型及等位基因频率.采用Epi Info 7软件计算上述多态位点在RA组及正常对照组之间的比值比(OR值).结果 rs138635403及rs17587位点的等位基因及基因型频率在RA组和对照组间差异有统计学意义(P＜0.05),其中RA组rs17587的GG基因型频率(0.672)高于对照组(0.524)(OR=1.862,95％CI:1.261～2.749).结论 云南汉族人群PSMB9基因的rs17587位点多态性与RA存在关联.     

DCDC2与KIAA0319基因间交互作用与维吾尔族儿童发展性阅读障碍的关联性研究

目的:探讨DCDC2的位点rs6456593、rs807701、rs2274305及KIAA0319的位点rs4504469、rs9461045多态性间交互作用与阅读障碍的相关性。方法:采用SNPscan SNP分型技术对392例新疆维吾尔族儿童的DCDC2的rs6456593、rs807701、rs2274305位点及KIAA0319的rs4504469、rs9461045位点多态性进行检测,在遗传平衡的基础上,应用多因子降维法检测基因与基因间的交互效应,并用logistic回归进行验证。结果:DCDC2的rs6456593在基因型(P=0. 020)、rs2274305在等位基因(P=0. 033)、KIAA0319的rs9461045在基因型(P 0. 05)和等位基因(P 0. 01)分布在病例组和对照组比较差异有统计学意义,且多因子降维法提示最佳模型是DCDC2的rs6456593、rs2274305及KIAA0319的rs4504469、rs9461045的联合作用,交叉验证一致性为10/10,检验样本精确度为0. 596;由上述四因子组成的交互组合人群是非上述组合人群阅读障碍发病风险的4. 66倍(OR=4. 66,95%CI:3. 03～7. 16),交互作用具有统计学意义(P 0. 05)。结论:DCDC2的位点rs6456593、rs807701、rs2274305及KIAA0319的位点rs4504469、rs9461045多态性存在交互作用,可能增加新疆维吾尔族儿童阅读障碍的患病风险。     

B及T细胞弱化因子基因多态性与乳腺浸润性导管癌临床关系的研究

目的 探讨B及T淋巴细胞弱化因子(BTLA)基因多态性与妇女乳腺浸润性导管癌临床关系;确定BTLA基因多态性与妇女乳腺浸润性导管癌临床关系的相关性.方法 取280例患乳腺浸润性导管癌妇女的外周血提取基因组DNA,利用聚合酶链式反应限制性片段长度多态性(PCR-RFLP)技术进行BTLA基因单核苷酸多态性检测,引用统计学软件分析其与各临床指标间的关系.结果 BTLA基因的rs1844089基因型与雌激素受体(ER)、孕激素受体(PR)和P53基因表达有关,rs2705535基因型与PR表达有关,rs9288952基因型与肿瘤大小,ER表达及PR表达有关.结论 BTLA的基因多态性中SNP的基因型与乳腺浸润性导管癌患者的肿瘤大小、ER、PR及P53基因差异具有统计学意义,而与淋巴结转移未发现有相关性.     

B及T细胞弱化因子基因多态性与乳腺浸润性导管癌临床关系的研究

目的 探讨B及T淋巴细胞弱化因子(BTLA)基因多态性与妇女乳腺浸润性导管癌临床关系;确定BTLA基因多态性与妇女乳腺浸润性导管癌临床关系的相关性.方法 取280例患乳腺浸润性导管癌妇女的外周血提取基因组DNA,利用聚合酶链式反应限制性片段长度多态性(PCR-RFLP)技术进行BTLA基因单核苷酸多态性检测,引用统计学软件分析其与各临床指标间的关系.结果 BTLA基因的rs1844089基因型与雌激素受体(ER)、孕激素受体(PR)和P53基因表达有关,rs2705535基因型与PR表达有关,rs9288952基因型与肿瘤大小,ER表达及PR表达有关.结论 BTLA的基因多态性中SNP的基因型与乳腺浸润性导管癌患者的肿瘤大小、ER、PR及P53基因差异具有统计学意义,而与淋巴结转移未发现有相关性.     

B及T细胞弱化因子基因多态性与乳腺浸润性导管癌临床关系的研究

目的 探讨B及T淋巴细胞弱化因子(BTLA)基因多态性与妇女乳腺浸润性导管癌临床关系;确定BTLA基因多态性与妇女乳腺浸润性导管癌临床关系的相关性.方法 取280例患乳腺浸润性导管癌妇女的外周血提取基因组DNA,利用聚合酶链式反应限制性片段长度多态性(PCR-RFLP)技术进行BTLA基因单核苷酸多态性检测,引用统计学软件分析其与各临床指标间的关系.结果 BTLA基因的rs1844089基因型与雌激素受体(ER)、孕激素受体(PR)和P53基因表达有关,rs2705535基因型与PR表达有关,rs9288952基因型与肿瘤大小,ER表达及PR表达有关.结论 BTLA的基因多态性中SNP的基因型与乳腺浸润性导管癌患者的肿瘤大小、ER、PR及P53基因差异具有统计学意义,而与淋巴结转移未发现有相关性.     

B及T细胞弱化因子基因多态性与乳腺浸润性导管癌临床关系的研究

目的 探讨B及T淋巴细胞弱化因子(BTLA)基因多态性与妇女乳腺浸润性导管癌临床关系;确定BTLA基因多态性与妇女乳腺浸润性导管癌临床关系的相关性.方法 取280例患乳腺浸润性导管癌妇女的外周血提取基因组DNA,利用聚合酶链式反应限制性片段长度多态性(PCR-RFLP)技术进行BTLA基因单核苷酸多态性检测,引用统计学软件分析其与各临床指标间的关系.结果 BTLA基因的rs1844089基因型与雌激素受体(ER)、孕激素受体(PR)和P53基因表达有关,rs2705535基因型与PR表达有关,rs9288952基因型与肿瘤大小,ER表达及PR表达有关.结论 BTLA的基因多态性中SNP的基因型与乳腺浸润性导管癌患者的肿瘤大小、ER、PR及P53基因差异具有统计学意义,而与淋巴结转移未发现有相关性.     

B及T细胞弱化因子基因多态性与乳腺浸润性导管癌临床关系的研究

目的 探讨B及T淋巴细胞弱化因子(BTLA)基因多态性与妇女乳腺浸润性导管癌临床关系;确定BTLA基因多态性与妇女乳腺浸润性导管癌临床关系的相关性.方法 取280例患乳腺浸润性导管癌妇女的外周血提取基因组DNA,利用聚合酶链式反应限制性片段长度多态性(PCR-RFLP)技术进行BTLA基因单核苷酸多态性检测,引用统计学软件分析其与各临床指标间的关系.结果 BTLA基因的rs1844089基因型与雌激素受体(ER)、孕激素受体(PR)和P53基因表达有关,rs2705535基因型与PR表达有关,rs9288952基因型与肿瘤大小,ER表达及PR表达有关.结论 BTLA的基因多态性中SNP的基因型与乳腺浸润性导管癌患者的肿瘤大小、ER、PR及P53基因差异具有统计学意义,而与淋巴结转移未发现有相关性.     

B及T细胞弱化因子基因多态性与乳腺浸润性导管癌临床关系的研究

目的 探讨B及T淋巴细胞弱化因子(BTLA)基因多态性与妇女乳腺浸润性导管癌临床关系;确定BTLA基因多态性与妇女乳腺浸润性导管癌临床关系的相关性.方法 取280例患乳腺浸润性导管癌妇女的外周血提取基因组DNA,利用聚合酶链式反应限制性片段长度多态性(PCR-RFLP)技术进行BTLA基因单核苷酸多态性检测,引用统计学软件分析其与各临床指标间的关系.结果 BTLA基因的rs1844089基因型与雌激素受体(ER)、孕激素受体(PR)和P53基因表达有关,rs2705535基因型与PR表达有关,rs9288952基因型与肿瘤大小,ER表达及PR表达有关.结论 BTLA的基因多态性中SNP的基因型与乳腺浸润性导管癌患者的肿瘤大小、ER、PR及P53基因差异具有统计学意义,而与淋巴结转移未发现有相关性.     

The SCARB1 rs5888 SNP and Serum Lipid Levels in the Guangxi Mulao and Han Populations

Backgroud: The associations of scavenger receptor class B type 1 (SCARB1) rs5888 single nucleotide polymorphism (SNP) and serum lipid levels are inconsistant among diverse ethnic populations. The present study was undertaken to detect the association of rs5888 SNP and serum lipid levels in the Guangxi Mulao and Han populations.Methods: Genotypes of the SCARB1 rs5888 SNP in 801 subjects of Mulao and 807 subjects of Han Chinese were determined by polymerase chain reaction and restriction fragment length polymorphism combined with gel electrophoresis, and then confirmed by direct sequencing.Results: Serum apolipoprotein (Apo) B levels and the T allelic frequency were higher in Mulao than in Han. Serum high-density lipoprotein cholesterol (HDL-C) levels in Mulao were different among the genotypes, the subjects with TT genotype had lower HDL-C levels than the subjects with CC or CT genotype in female (P < 0.05). For the Han population, serum triglyceride (TG), HDL-C, ApoAI, ApoB levels and the ratio of ApoAI to ApoB in males were different among the genotypes, the T allele carriers had lower serum HDL-C, ApoAI levels and ApoAI/ApoB ratio and higher serum ApoB levels than the T allele noncarriers (P < 0.05 for all), the subjects with TT genotype had higher serum TG levels than the subjects with CC or CT genotype. Serum HDL-C levels in Mulao females and serum HDL-C, ApoAI, ApoB levels and the ApoAI/ApoB ratio in Han males were correlated with genotypes by the multiple linear regression analysis. Serum lipid parameters were also influenced by genotype-environmental interactions in Han but not in Mulao populations.Conclusions: These results suggest that the rs5888 SNP is associated with serum HDL-C levels in Mulao females, and TG, HDL-C, ApoAI, ApoB levels and the ApoAI/ApoB ratio in Han males. The differences in serum ApoB levels between the two ethnic groups might partially attribute to different SCARB1 genotype-environmental interactions.     

中国上海地区汉族人PGC-1α基因多态性与2型糖尿病相关性研究

目的 研究过氧化物酶增殖激活受体-γ共激活子-1α（peroxisome proliferators-activated reeeptor-γ coactivator-1α，PGC-1α）基因单核苷酸多态性（single nucleotide polymorphism，SNP）与2型糖尿病（type 2 diabetes mellitus，T2DM）的关联性。方法 应用聚合酶链反应-限制性内切酶片段长度多态性技术，选择PGC-1α基因4个常见SNPs位点：Thr394Thr（ACG→ACA）、Gly482Ser（GGT→AGT）、Thr612Met（ACG→ATG）和IVS2＋52C→A，对69个T2DM家系（310例）进行基因分型，并用传递不平衡检验（transmission-disequilibrium test，TDT）和同胞传递不平衡检验（sib transmission．disequilibrium，STDT）进行分析。用同样方法在无家族史的156例T2DM患者及111名糖耐量正常者中进行病例-对照关联分析，检验Gly482Ser多态性在散发人群中的分布。结果 （1）经TDT-STDT检验，未发现单个PGC-1α基因SNPs位点在T2DM患病子代中优势传递；（2）在病例-对照关联分析中，Gly482Ser位点多态性在两组人群的分布差异有统计学意义，携带者GA基因型罹患T2DM的危险性可增加1．85倍，且等位基因在两组人群的分布差异有统计学意义（P=0．046）；（3）在无家族史的糖耐量正常者中，Gly482Ser位点的GG基因型的高密度脂蛋白胆固醇、低密度脂蛋白胆固醇和甘油三酯水平与GA＋AA基因型比较，差异有统计学意义（分别为P=0．043，P=0．046，P=0．037）。结论 PGC-1α基因Gly482Ser多态性可能与T2DM的易感性相关。     

Sex-specific association of the peptidase D gene rs731839 polymorphism and serum lipid levels in the Mulao and Han populations

Little is known about the association of peptidase D (PEPD) gene rs731839 single nucleotide polymorphism (SNP) and serum lipid profiles in the Chinese population. The objective of the present study was to detect the association of the PEPD rs731839 SNP and serum lipid levels in the Mulao and Han populations. Genotyping of the PEPD rs731839 SNP was performed in 751 subjects of Mulao and 762 subjects of Han using polymerase chain reaction and restriction fragment length polymorphism and then confirmed by direct sequencing. The A allele carriers had higher serum high-density lipoprotein cholesterol (HDL-C), apolipoprotein (Apo) AI levels and lower triglyceride (TG) levels in Mulao; and higher HDL-C, low-density lipoprotein cholesterol (LDL-C) and ApoAI levels in Han than the A allele non-carriers. Subgroup analyses showed that the A allele carriers had higher HDL-C, ApoAI levels and lower TG levels in Mulao males but not in females; higher total cholesterol (TC), HDL-C, LDL-C and ApoAI levels in Han males; and higher TG, HDL-C and ApoAI levels in Han females than the A allele non-carriers. Serum lipid parameters were also correlated with several environmental factors in Mulao and Han populations, or in males and females in both ethnic groups. The association of the PEPD rs731839 SNP and serum lipid levels was different between the Mulao and Han populations, and between males and females in the both ethnic groups. There may be an ethnic- and/or sex-specific association of the PEPD rs731839 SNP and serum lipid levels in our study populations.     

Association of polymorphism in adiponectin (+45 T/G) and leptin (–2548 G/A) genes with type 2 diabetes mellitus in male Egyptians

Introduction

Adiponectin is an adipose tissue-specific protein with insulin-sensitizing properties. Many investigators have explored the association between adiponectin single nucleotide polymorphisms (SNPs) and type 2 diabetes mellitus (T2DM) in different ethnic populations from different regions. Leptin is a protein hormone constituting an important signal in the regulation of adipose tissue mass and body weight. The aim of this study was to explore potential associations between SNP +45 T>G of the adiponectin gene and SNP 2548G/A of leptin with T2DM and the effect of SNPs on serum adiponectin and leptin levels.

Material and methods

From the Egyptian population, we enrolled 110 T2DM patients and 90 non-diabetic controls. Serum lipid profile, blood glucose, serum adiponectin, and leptin were measured. Genotyping for two common SNPs of the adiponectin and leptin genes was performed by polymerase chain reaction–restriction fragment length polymorphism.

Results

The G allele and TG/GG genotype of SNP 45 occurred more frequently than the T allele and TT genotype in T2DM patients compares to the controls. Subjects with the GG + TG genotype of SNP 45 were at increased risk for T2DM (OR = 6.476; 95% CI: 3.401–12.33) and associated with a low serum adiponectin level compared with the TT genotype. The serum leptin concentration of GA + AA genotype carriers was not significantly different from that of the GG genotype in the diabetic group.

Conclusions

The G allele carriers who have reduced plasma concentrations of adiponectin may have an association with T2DM, while leptin SNP 2548 G/A is not associated with the risk of development of T2DM in the Egyptian population.     

高脂血症高密度脂蛋白亚类分布与Apo A-Ⅰ基因多态性的关系

目的：探讨高脂血症患者高密度脂蛋白（HDL）亚类分布与载脂蛋白A-Ⅰ(Apo A-Ⅰ)基因多态性的关系。 方法： 采用聚合酶链反应(PCR)-限制性片段长度多态性(RFLP)和双向电泳-免疫印迹检测法，分析比较118例高脂血症患者和109例血脂正常者的Apo A-Ⅰ基因型、HDL各亚类分布及相对含量。 结果： Apo A-Ⅰ基因 －78 bp 位点和 ＋83 bp 位点的多态性分别以G/G和C/C基因型占优势，其中 －78 bp 位点高脂血症组A等位基因的频率显著高于对照组（P＜0.05）。高脂血症患者中，G/A突变受试者血清TG、Apo C-Ⅲ、pre β1-HDL及HDL3a水平显著高于，而HDL2a和HDL2b水平则显著低于G/G基因型者。 结论： 高脂血症Apo A-Ⅰ基因 －78 bp 位点G/A突变与HDL亚类分布相关，G/A突变受试者血清HDL亚类颗粒呈减小的趋势，提示HDL成熟代谢可能受阻。     

AQP7和AQP9基因多态性与中国汉族人群2型糖尿病的相关性研究CSCD

目的探讨水通道蛋白7(aquaporin 7, AQP7)以及水通道蛋白9(aquaporin 9, AQP9)基因单核苷酸多态性(single nucleotide polymorphism, SNP)与中国汉族人群患2型糖尿病(type 2 diabetes mellitus, T2DM)的相关性。方法随机纳入1194例T2DM个体和1274例非糖尿病个体(non-diabetic, NDM)进行对照研究, 采用MassArray质谱基因分型方法对3个SNP位点(AQP7基因rs3758269、AQP9基因rs16939881和rs57139208)进行基因分型。评估以上3个SNP位点与T2DM的相关性;探讨NDM组SNP位点处不同基因型与糖脂代谢指标的关联。结果 AQP7基因rs3758269、AQP9基因rs16939881和rs57139208的等位基因频率及基因型频率在T2DM组和NDM组中的分布无统计学差异(P > 0.05);且分析结果显示不同遗传模式与T2DM无相关性(P > 0.05)。在NDM组中, AQP7基因rs3758269、AQP9基因rs16939881和rs57139208的不同基因型与糖脂代谢指标无相关性(P > 0.05)。结论 AQP7基因rs3758269和AQP9基因rs16939881和rs57139208与中国汉族人群T2DM遗传易感性无关。     

Association of two polymorphisms in the FADS1/FADS2 gene cluster and the risk of coronary artery disease and ischemic stroke

Little is known about the association of the FADS1/FADS2 SNPs and serum lipid levels and the risk of coronary artery disease (CAD) and ischemic stroke (IS) in the Chinese southern population. The present study aimed to determine such association in the Chinese southern population. A total of 1,669 unrelated subjects (CAD, 534; IS, 553; and healthy controls, 582) were recruited in the study. Genotypes of the FADS1 rs174546 SNP and the FADS2 rs174601 SNP were determined by the SNaPshot Multiplex Kit. The T allele and TT genotype frequencies of the two SNPs were predominant in our study population. The T alleles were associated with increased risk of CAD and IS. Correspondingly, the C alleles were associated with reduced risk of CAD and IS. Haplotype analyses showed that the haplotype of T-T (rs174546-rs174601) was associated with an increased risk for IS, and the haplotype of C-C (rs174546-rs174601) was associated with a reduced risk for CAD and IS. The two SNPs were likely to influence serum lipid levels. The T allele carriers of the two SNPs and rs174601 TT genotype were associated with decreased serum HDL-C and ApoAI levels in the patient groups and with an increased risk of CAD and IS. The present study suggests that the FADS1 rs174546 SNP and the FADS2 rs174601 SNP are associated with the risk of CAD and IS, and are likely to influence serum lipid levels. However, further functional studies are needed to clarify how the two SNPs actually affect serum lipid levels and the risk of CAD and IS.     

Association between the MARS rs6782181 polymorphism and serum lipid levels

Little is known about the association between the muscle Ras (MRAS) gene rs6782181 polymorphism and serum lipid levels. The aim of the present study was to investigate the association between the MRAS rs6782181 polymorphism and serum lipid levels in the Mulao and Han populations. A total of 632 subjects of Han and 629 unrelated subjects of Mulao nationalities were randomly selected from our previous stratified randomized samples. Genotypes of the MARS rs6782181 polymorphism were determined via polymerase chain reaction and restriction fragment length polymorphism. The subjects with GG genotype had higher serum total cholesterol (TC), triglyceride (TG), low-density lipoprotein cholesterol (LDL-C), and apolipoprotein (Apo) B levels in Han, and higher serum TC and LDL-C levels in Mulao than the subjects with AA/AG genotypes (P < 0.05-0.01). Subgroup analyses showed that the subjects with GG genotype had higher TC, TG, high-density lipoprotein cholesterol (HDL-C), LDL-C, ApoAI and ApoB in Han males, lower ApoAI and the ratio of ApoAI to ApoB in Han females; and higher LDL-C levels in Mulao males but not in Mulao females than the subjects with AG/AA genotypes. The association of the MARS rs6782181 polymorphism and serum lipid levels is different between the Mulao and Han populations, or between males and females in the both ethnic groups. There may be an ethnic- and/or sex-specific association between the MRAS rs6782181 polymorphism and serum lipid levels in our study populations.     

广西人群miRNA-107基因多态性分布特征及其与血脂的关系

目的探讨miR-107基因单核苷酸多态性(SNP)位点rs2296616 C/T在广西地区健康人群中的分布特点,对比其在不同种族间基因型及等位基因频率分布的差异,并进一步探讨rs2296616 C/T位点单核苷酸多态性(SNP)与血脂水平的相关性。方法采用多重单碱基延伸SNP分型技术(multiplex SNa Pshot)和DNA测序法,检测372例广西健康人rs2296616 C/T位点的多态性,用7600生化仪检测其血脂相关指标,并用统计学方法分别比较rs2296616C/T位点多态性在各种族人群间的分布差异及不同基因型间的血脂水平差异。结果广西人群miR-107基因rs2296616 C/T位点存在TT(91.1%)和CT(8.9%)两种基因型及T(95.6%)和C(4.4%)两种等位基因。该位点的基因型和等位基因型频率在广西人群不同性别间的比较,差异无统计学意义(P>0.05)。其基因型和等位基因频率与人类基因组单体型图(Hap Map)所公布的欧洲人、日本人、非洲人、印第安人和墨西哥人分型数据相比较,差异均有统计学意义(P<0.05),但与北京汉族人群比较,差异无统计学意义(P>0.05)。rs2296616 C/T位点两种基因型人群血脂之间比较,携带TT基因型人群的高密度脂蛋白胆固醇(HDL-C)与CT组比较,差异具有统计学意义(P<0.05)。结论广西人群miR-107基因rs2296616 C/T位点多态性与其他种族人群之间比较存在不同程度的差异;rs2296616 C/T位点多态性与HDL-C水平高低有关。