SCN7A 基因单核苷酸多态性与原发性与原发性高血压的相关研究

目的　检测中国人电压调控钠通道 7型α亚单位基因 (sodium channel,voltage- gated,type ,alpha polypeptide,SCN7A)调控区和编码区的单核苷酸多态性 (single nucleotide polymorphisms,SNPs) ,并探讨其与上海汉族人群原发性高血压的关系。　方法　采用直接测序法检测基因启动子、编码区和部分内含子的序列 ,以确定中国人群中 SCN7A基因 SNPs的位置及类型。采用聚合酶链反应 -限制性片段长度多态性及直接测序法 ,对上海汉族 96例原发性高血压患者和 96名正常血压对照者进行 SNP检测和关联研究。对所发现的 P<0 .0 5的 SNP位点 ,进一步扩大样本 (病例、对照组各 2 88例 )加以验证。结果　在 13132 bp的测序长度中 ,共发现 32个 SNP,包括启动子区 7个 ,编码区 10个 (其中改变氨基酸编码的 6个 ) ,3′非编码区 1个 ,内含子区 14个 ,其中 30个为新发现的 SNP。关联研究结果显示 SNP0 2 1在病例和对照组中的分布差异存在显著性 (P <0 .0 1) ,该 SNP多态可改变氨基酸的编码序列。　结论SCN7A基因变异可能与上海汉族人群原发性高血压相关。     

RAS及其基因多态性与原发性高血压

肾素-血管紧张素系统(RAS)在调节盐代谢和血压的调控以及高血压的发病中起着重要的作用,RAS是迄今为止研究最广泛的高血压相关基因。现对RAS中的3个重要成员血管紧张素转换酶(ACE)、血管紧张素原(AGT)和血管紧张素Ⅱ1型受体(AT1R)的特性、分布、基因定位、基因结构、基因多态性及其与高血压的关系进行了系统的综述。     

β2-肾上腺素能受体基因多态性与高血压关系的研究进展

β2-肾上腺索能受体（β2-adrenergic receptorβ2-AR）是交感神经系统的重要组成部分，对血压的短期和长期调节均有重要影响。β2-AR基因作为原发性高血压（EH）重要的候选基因，其变异与受体的表达、血管紧张性的变化均有关系；同时目前已在不同人群中证实其与高血压有相关性。本文综述了该基因多态性在高血压及其他领域最新的研究进展。     

新疆哈萨克族原发性高血压基因多态性研究进展

原发性高血压是遗传和环境因素共同作用的多基因复杂性疾病,新疆哈萨克族人群患病率高于同一居住区及不同居住区的其他民族,目前应用单核苷酸多态性(single nueleotide polymorphisms,SNPs)作为新一代遗传标志研究原发性高血压,对于阐明新疆地区哈萨克族人群的遗传易感机制具有重要意义.     

STAMP2基因多态性与新疆维吾尔族人原发性高血压的相关性研究

目的 探讨STAMP2基因功能区多态位点与新疆维吾尔族人原发性高血压的相关性.方法 采用以流行病学调查为基础的病例-对照研究,选取2047个维吾尔族人(包括810例高血压病患者和1237名对照)作为研究对象.首先在小样本维吾尔族高血压患者中测序筛查STAMP2基因功能区的变异位点,选取代表性变异位点应用TaqMan-PCR在大样本人群中进行基因型鉴定及病例-对照关联研究.结果 STAMP2基因的3个代表性变异位点rs8122、rs1981529及rs34741656基因型及等位基因分布在高血压组与对照组中差异无统计学意义(P＞0.05).Logistic回归分析发现3个位点不是高血压患病的危险因素(P＞0.05).rs8122、rs1981529及rs34741656不同基因型间收缩压、舒张压水平差异无统计学意义(P＞0.05).单倍型基因频率分布在高血压组与对照组中差异无统计学意义(P＞0.05).结论 STAMP2基因3个代表性单核苷酸多态性(rs8122、rs1981529及rs34741656)可能与新疆维吾尔族人原发性高血压无关.

Abstract：

Objective To investigate the relationship between the gene tic polymorphisms of the six transmembrane protein of prostate 2 gene (STAMP2)and essential hyper.tension in Xinjiang Uygur population. Methods The sequences of STAMP2 gene functional region were sequenced in Xinjiang Uygur population with hypertension. The representative variations selected were genotyped by TaqMan-PCR method in 2047 Uygur individuals, including 810 patients with hypertension and 1237 healthy subjects. The association of the genetic variations of the STAMP2 gene with hypertension in Uygur was analyzed. Results In the three representative variations (rs8122, rs1981529 and rs34741656) genotyped, there were no significant differences in genotype distribution and allele frequencies between the essential hypertension and control groups (P＞0. 05). In ANCOVA analysis, none of the polymorphisms was significantly associated with systolic blood pressure and diastolic blood pressure(P＞0.05). There were no significant differences in haplotype frequencies between the two groups either(P＞0. 05). Conclusion There was no association of the three polymorphisms (rs8122, rs1981529 and rs34741656) in the STAMP2 gene with essential hypertension in Xinjiang Uygur population.     

缓激肽β2受体基因多态性与原发性高血压关系的研究现状

激肽释放酶-激肽系统是体内血压调控的重要组成部分，其中缓激肽是体内最强的血管舒张物质之一，其作用主要是通过β2受体介导，本文主要综述了近年对缓激肽β2受体基因多态性的研究及其与高血压相关性研究报道。     

EMILIN1基因多态性与蒙古族原发性高血压相关性研究

目的 探讨蒙古族人群中EMILIN1基因的3个单核苷酸多态性(single nucleotide polymorphism,SNP)位点与原发性高血压的关系.方法 在内蒙古自治区蒙古族人群中选取201例原发性高血压患者和202名血压正常者进行病例对照研究,应用聚合酶链反应-限制性片段长度多态方法检测rs3754734、rs2011616和rs2304682这3个SNP位点的等位基因和基因型分布,并构建单倍型.结果 在这3个SNP位点中,rs2304682位点的基因频率和基因型频率在高血压组和对照组间差异有统计学意义(P＜0.05),并且在rs3754734和rs2304682这2个SNP位点构建的单倍型中,G-C和G-G单倍型在高血压组和对照组之间差异有统计学意义(P＜0.05).在舒张压偏高组和舒张压正常组间,rs2304682位点的基因型和等位基因分布差异有统计学意义(P＜0.05),而在收缩压偏高组和收缩压正常组间,各个SNP的基因型和等位基因分布差异无统计学意义(P＞0.05).结论 在蒙古族人群中,EMILIN1基因rs2304682多态性位点以及rs3754734和rs2304682这2个SNP位点构建的G-G单倍型可能与原发性高血压的易感相关联,rs2304682的多态性与蒙古族原发性高血压的舒张压的高低可能有关联.

Abstract：

Objective To explore the relationship between genetic polyrnorphisms of 3 single nucleotide polymorphisms (SNPs) in the elastin microfibril interfacer 1 (EMILIN1)gene and essential hypertension. Methods A case-control study was conducted in which 201 hypertensive patients and 202 healthy controls in Mongolian population were enrolled, and the genotypes of rs3754734, rs2011616 and rs2304682 loci were analyzed using polymerase chain reaction-restriction fragment length polyrnorphism (PCR-RFLP) and direct sequencing techniques. Results There were significant differences in the frequencies of alleles and genotypes for the rs2304682 between the hypertensives and normotensives in the population(P＜0. 05). The frequency of the G-G haplotype established by rs3754734 and rs2304682 was significantly higher in the hypertensive patients (P＜0. 05). The frequencies of alleles and genotypes for the rs2304682 also had significant differences between the group with high diastolic blood pressure and normal diastolic blood pressure (P＜0.05). There were no significant differences in the frequencies of alleles and genotypes for the 3 SNPs between the group with high systolic blood pressure and normal systolic blood pressure (P＞0.05). Conclusion The rs2304682 locus in the EMILIN1 gene, as well as the haplotypes G-G constructed using rs3754734 and rs2304682, may associate with the susceptibility of essential hypertension in the Mongolian population. Also, rs2304682 may associate with the level of the diastolic blood pressure.     

β2-肾上腺素能受体基因多态性与高血压关系的研究进展

β2-肾上腺素能受体(β2-adrenergic receptor,β2-AR)是交感神经系统的重要组成部分,对血压的短期和长期调节均有重要影响.β2-AR基因作为原发性高血压(EH)重要的候选基因,其变异与受体的表达、血管紧张性的变化均有关系;同时目前已在不同人群中证实其与高血压有相关性.本文综述了该基因多态性在高血压及其他领域最新的研究进展.     

ECE-1基因多态性与原发性高血压的相关性

目的探讨内皮素转换酶-1(endothelin converting enzyme-1,ECE-1)基因多态性与中国北方汉族人群原发性高血压的相关性。方法采用病例-对照方法,在中国北方汉族人群中收集178例原发性高血压患者和194例健康对照者,应用聚合酶链式反应-连接酶检测方法测定ECE-1基因C-338A和T-839G位点的多态性。结果在原发性高血压组中,C-338A位点CA+AA基因型和A等位基因分布频率显著高于对照组(P=0.006;P=0.014);T-839G位点基因型和等位基因分布频率无显著差异。结论 ECE-1基因C-338A位点多态性与中国北方汉族人群原发性高血压的发病具有一定相关性。     

Association of single nucleotide polymorphisms of LEPR gene with essential hypertension among ethnic Mongolian and Han Chinese from Inner Mongolia regionCSCD

Objective: To assess the association of single nucleotide polymorphisms (SNPs) of leptin receptor (LEPR) gene with essential hypertension (EH) and body mass index (BMI) among ethnic Mongolian and Han Chinese from Inner Mongolia region. Methods: In total 411 Han Chinese patients with EH and 480 healthy controls, together with 658 Mongolian patients with EH and 403 healthy controls, were collected. The SNPs of the LEPR gene were determined with ligase detection reaction (LDR). Logistic regression was used to analyze the association of the polymorphisms of each locus with EH and BMI. MDR software was used to analyze the interaction between above loci and environmental factors. Results: Genotypic frequencies of LEPR gene rs7555955, rsll37100 and rsll37101 loci had differed significantly among ethnic Hans with EH and the control group (All P <0. 05). While those of rs7555955, rsl805094, rsll37100, rsll579567, rsl805134 and rs6669354 loci had differed significantly among ethnic Mongolians with EH and the control group (All P<0. 05). After adjustment for confounders, logistic regression analysis indicated that age(Oi=2. 97, 95%CJ: 1. 94-3. 99), BMI (Ofl = 3. 93, 95%CI:2. 91-5. 96), and rsll37101 (AA) (Oi=3. 96, 95%CI-.l. 32-11. 90) were independent risk factors for EH among ethnic Hans, while age (Oi=2. 99, 95%C7:2. 98-4. 57), BMI (Oi = 3. 03, 95%CI-. 1. 05-1. 27), rs7555955 (AG, AA) (OR = 12.12, 95%CI:2.80-52.43) OP = 6.35, 95%CI: 1. 44-27. 94), and rs7555955 (GG) were independent risk factors for EH among ethnic Mongolians (P <0. 05). Conclusion: Age and BMI are independent risk factors for EH in both ethnic Han and Mongolian Chinese. rsll37101 locus is associated with EH among ethnic Hans, while rs7555955 locus is associated with EH among ethnic Mongolians. © 2018 MeDitorial Ltd. All rights reserved.     

四个E-选择素基因的多态性与哈尼族原发性高血压相关性研究

目的探讨E－选择素基因rs3917408G／T、rs5361A／C、rs5368C／T和rs3917429C／T等4个错义突变与哈尼族原发性高血压的关系。方法采用PCR测序技术，对云南哈尼族172例原发性高血压患者和133例正常对照的E－选择素基因的rs3917408G／T、rs5361A／C、rs5368C／T和rs3917429C／T突变进行检测。结果在哈尼族原发性高血压组，rs3917408T、rs5361C、rs5368T和rs39t7429T等位基因频率分别为2％、7％、28．8％和6．1％，正常对照组相应的等位基因频率分别为4％、4．9％、21．8％和1．1％，其中原发性高血压组rs3917429位点T等位基因频率显著高于正常对照组（P〈0．01），其余突变点两组之间的等位基因频率比较差异均无显著性（P〉0．05）。结论E－选择素基因rs3917429位点T等位基因与哈尼族原发性高血压相关。     

醛固酮合成酶基因-344T/C多态性与高血压病相关性研究

目的研究醛固酮合成酶基因-344T/C多态性是否与原发性高血压相关.方法多聚酶链反应-限制性片段长度多态性技术检测原发性高血压和对照组醛固酮合成酶基因-344T/C多态性,χ2检验比较各组基因型和等位基因频率.结果对照组TT、TC和CC基因型频率分别为48%、43%和9%,高血压病组TT、TC和CC基因型频率分别为43%、47%和10%;对照组T、C等位基因频率分别为69%和31%,高血压病组T、C等位基因频率分别为66%和34%.经χ2检验两组之间基因型和等位基因频率差异均无显著性(P＞0.05).结论本研究尚不支持醛固酮合成酶基因-344T/C多态性与原发性高血压存在相关性.     

血管紧张素原基因的六种单核苷酸多态与原发性高血压的相关性

目的　研究血管紧张素原 (angiotensinogen,AGT)基因 6个位点的单核苷酸多态及其构成的单倍型与中国汉族人原发性高血压的相关性。方法　采用多重SNa Pshot反应 ,在 185例原发性高血压患者和185名健康对照者中 ,对 AGT基因启动子区域的 G- 2 17A、G- 15 2 A、A- 2 0 C、G- 6 A及第 2外显子的T174 M和 M2 35 T多态进行基因分型。结果　 6种单核苷酸多态的基因型分布及其等位基因频率在原发性高血压组和对照组中差异无显著性 (P>0 .0 5 )。单倍型分析提示由 - 15 2 A,- 2 0 C,- 6 A和 2 35 T等位基因构成的 H4单倍型在原发性高血压组中明显增加 ,与对照组相比差异有显著性 (P<0 .0 5 )。结论　AGT基因G- 15 2 A,A- 2 0 C,G- 6 A和 M2 35 T多态可能对中国汉族人原发性高血压的发病起了重要作用。     

Association study of aromatase gene (CYP19A1) in essential hypertension

Background: As aromatase-deficient mice, which are deficient in estrogens, reportedly have reduced blood pressure, the aromatase gene (CYP19A1) is thought to be a susceptibility gene for essential hypertension (EH). The aim of the present study was to investigate the relationship between CYP19A1 and EH by examining single nucleotide polymorphisms (SNPs).Methods: Five SNPs in the human CYP19A1 gene (rs1870049, rs936306, rs700518, rs10046 and rs4646) were selected, and an association study was performed in 218 Japanese EH patients and 225 age-matched normotensive (NT) individuals.Results: There were significant differences between these groups in the distribution of genotypes rs700518 and rs10046 in male subjects, and genotypes rs700518, rs10046 and rs4646 in female subjects. On multiple logistic regression analysis, a significant association between rs700518 (p=0.023) and rs10046 (p=0.036) in male subjects and rs700518 in female subjects (p=0.018) was noted. Interestingly, the risk genotypes of rs700518 and rs10046 showed a sex-dependent inverse relationship. Both SBP and DBP levels were higher in total (cases and controls) male subjects with the G/G genotype with rs700518 or the T/T genotype with rs10046 than in male subjects without the G/G genotype or T/T genotype. SBP levels were lower in female subjects with the G/G genotype with rs700518 than in female subjects without G/G. The A-T haplotype constructed with rs1870049 and rs10046 was a susceptibility marker for EH.Conclusions: We confirmed that rs700518 and rs10046, as well as a haplotype constructed with rs1870049 and rs10046, in the human CYP19A1 gene can be used as genetic markers for gender-specific EH.     

白细胞介素-1基因多态性与原发性高血压关联

目的研究白细胞介素-1(IL-1)基因多态性与原发性高血压的相关关系。方法采用聚合酶链反应-限制性片段长度多态性(PCR-RFLP)技术,检测150例原发性高血压患者和160例健康对照者IL-1基因多态性。结果IL-1α基因-889C/T多态性在两组人群中的分布差异显著(P<0.05);等位基因频率的相对风险分析发现,T等位基因携带者患原发性高血压的风险是C等位基因的2.102倍(OR=2.102,95%CI:1.231~3.590),携带CT+TT基因型的原发性高血压患者收缩压水平显著高于CC基因型者[(168.9±19.8)mmHg比较(160.2±18.9)mmHg],(P<0.05)。结论IL-1α基因-889C/T多态性与原发性高血压的发病具有相关性,其中T等位基因可能是原发性高血压发病的遗传易感基因,携带T等位基因的个体可能通过促进收缩压的升高进而增加了原发性高血压的发病风险。     

噻嗪类-敏感的钠-氯协同转运蛋白基因多态性与原发性高血压的关系

目的探讨噻嗪类-敏感的钠-氯协同转运蛋白(thiazide-sensitive Na -Cl-cotransporter,TSC)基因1784C/T和2736G/A多态性与中国汉族人群原发性高血压(essential hypertension,EH)发病风险的关系。方法采用以社区为基础的病例-对照研究,选择190例EH患者和94名血压正常的对照者作为研究对象。用基因芯片方法检测TSC基因1784C/T和2736AG/位点的基因型,比较EH组和对照组基因型和等位基因分布频率的差异。结果在EH组和对照组1784C/T和2736G/A多态位点的基因型(1784C/TCC、CT、TT:87、88、15vs36、52、6;2736G/AGG、AG、AA:167、22、1vs83、10、1)和等位基因频率(1784C/TC、T:68.9%、31.1%vs66.0%、34.0%;2736G/AG、A:93.7%、6.3%vs93.6%、6.4%)差异均无统计学意义(P>0.05);单倍型分析显示1784C/T和2736G/A多态性构成的各单倍型分布频率差异无统计学意义(P>0.05),单倍型Logistic回归模型发现携带不同单倍型的人群EH发病风险亦无统计学意义(P>0.05)。结论TSC基因1784C/T和2736G/A多态性可能与我国汉族人群EH发病风险不相关,其结果需在今后的研究中进一步证实。     

ESR1基因单核苷酸多态性及单倍型与精神分裂症的关联研究

目的 探索雌激素受体1 (estrogen receptor 1,ESR1)基因rs2234693、rs9340799和rs3798759位点单核苷酸多念性(single nucleotide polymorphisms,SNPs)及其单倍型与精神分裂症(schizophrenia,SZ)发病之间的相关性.方法 应用聚合酶链反应-限制性片段长度多态性技术对333例SZ患者和315名正常对照rs2234693、rs9340799和rs3798759位点进行基因分型,应用x2检验对SZ组和对照组等位基因、基因型和单倍型频率进行分析.结果 rs2234693、rs9340799位点两组间基因型频率及等位基因分布差异均无统计学意义(P＞0.05).SZ组rs3798759位点GG基因型频率及G等位基因频率均高于健康对照组(P＜0.01).性别分层分析提示,女性SZ患者rs3798759位点TG、GG基因型频率及G等位基因频率均高于健康女性(P＜0.05).单倍型C-A-G和C-G-G在SZ组的分布频率高于对照组(P＜0.05).结论 rs3798759位点突变可能为女性精神分裂症发生的风险因子,C-A-G和C-G-G单倍型可能为精神分裂症的遗传风险单倍型.     

Association study between CYP24A1 gene polymorphisms and cancer risk

CYP24A1, an essential gene in regulation of vitamin D, has been reported to play an important role in enhancing immune activity and inhibiting tumorigenesis. Previous studies proposed that rs2585428, rs4809960, rs6022999 and rs6068816 in CYP24A1 gene might be greatly associated with cancer risk. To validate the findings, we here investigated the associations of these four polymorphisms and colorectal cancer (CRC) risk in a central Chinese population (426 colon cancer patients, 361 rectal cancer patients and 800 healthy controls). The genotyping was conducted by polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) and confirmed by sequencing. Our results revealed that the rs4809960 and rs6022999 were strongly associated with the CRC risk, especially with the colon cancer risk. Moreover, the analysis of haplotypes consisting of rs2585428(G > A), rs4809960(T > C), rs6022999(A > G) and rs6068816(C > T) indicated that haplotype ATGC significantly decreased the CRC risk, especially the colon cancer risk. Haplotype GCAT significantly increased the CRC risk, especially the rectal cancer risk. However, haplotype ACAC was only found to be associated with increased risk of CRC. To improve the statistical strength, an updated meta-analysis was further performed. The results showed that rs2585428 was associated with cancer risk in Caucasian population, rs4809960 was associated with breast cancer risk in Caucasian population, and rs6022999 was associated with cancer risk in Asian population. Collectively, the rs4809960 and rs6022999 may be the genetic biomarkers for prediction of colon cancer risk in Chinese population, the rs2585428 and rs6022999 may link to cancer susceptibility in Caucasian population and in Asian population respectly.     

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.