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Tri-occurrence of attenuated familial adenomatous polyposis, Lynch syndrome, and hereditary breast and ovarian cancer: A case report with implications for treatment and surveillance 弱化家族性腺瘤性息肉病,Lynch综合征,遗传性乳腺癌和卵巢癌的三次发生:一个病例报告与治疗和监测的意义
IF 0.7 Q4 GENETICS & HEREDITY Pub Date : 2022-02-01 DOI: 10.1016/j.mgene.2021.101001
Jamie L. Fisher, Amy J. Hale, Russell Gollard

The combination of three different germline pathogenic variants: APC (NM_000038.5), PMS2 (NM_000535.5), PALB2 (NM_024675.3) in one individual has not been previously reported. In this brief report, we report an individual with the aforementioned autosomal dominant array of pathogenic variants. This individual was afflicted with stage IV colon cancer at age 31. The interaction of three separate germline pathogenic variants in determining cancer risk is not known; with the advent of widespread genetic panel testing, other multi-mutated genomes will surely be found and will have implications for treatment and surveillance.

三种不同的种系致病变异:APC (NM_000038.5)、PMS2 (NM_000535.5)、PALB2 (NM_024675.3)在一个个体中的组合此前未见报道。在这个简短的报告中,我们报告了一个具有上述常染色体显性致病变异阵列的个体。这个人在31岁时患上了第四期结肠癌。三种不同的种系致病变异在决定癌症风险方面的相互作用尚不清楚;随着广泛的基因小组检测的出现,其他多突变基因组肯定会被发现,并将对治疗和监测产生影响。
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引用次数: 0
Vascular endothelial growth factor A (VEGFA) promoter rs2010963 polymorphism and cancer risk: An updated meta-analysis and trial sequential analysis 血管内皮生长因子A (VEGFA)启动子rs2010963多态性与癌症风险:一项最新的荟萃分析和试验序列分析
IF 0.7 Q4 GENETICS & HEREDITY Pub Date : 2022-02-01 DOI: 10.1016/j.mgene.2022.101017
Md. Abdul Aziz , Mohammad Sarowar Uddin , Md. Shalahuddin Millat , Mohammad Safiqul Islam

Objectives

Previous observational studies evaluating the relationship of VEGFA rs2010963 polymorphism with cancer risk reported inconsistent outcomes. We conducted this meta-analysis to confirm a firm correlation of rs2010963 with overall cancers.

Materials and methods

A total of 70 eligible studies, including 25,245 cancer patients and 28,219 controls, were retrieved from online databases and included studies that analyzed odds ratio (OR) with 95% confidence intervals.

Results

In the overall cancers and population, no association between VEGFA rs2010963 and cancer was found. We observed a statistically significant association (p < 0.05) of rs2010963 with increased cancer risk in the African population (codominant 1: OR = 1.44, dominant model: OR = 1.41, allele model: OR = 1.24). Stratification by cancer types showed significant association with urogenital cancer risk under codominant 1 (OR = 1.22), codominant 2 (OR = 1.55), codominant 3 (OR = 1.24), dominant (OR = 1.29), recessive (OR = 1.36), and allele model (OR = 1.24). In renal cell cancer, four genetic models depicted significant correlation, namely codominant 1 (OR = 1.28), codominant 2 (OR = 1.68), dominant (OR = 1.38), and allele model (OR = 1.29). For osteosarcoma, codominant 3 (OR = 0.81) and the overdominant model showed significant association (OR = 1.16). Three genetic models showed a protective effect in thyroid cancer, including codominant 2, recessive, and allele models (OR = 0.48, 0.59, and 0.68, respectively). Only the recessive model in Asian breast cancer patients (OR = 1.16) and codominant 3 and recessive model in mixed patients (OR = 1.43 and 1.39) showed an association.In the overall cancers and population, no association between VEGFA rs2010963 and cancer was found.

Conclusions

The present meta-analysis indicates that VEGFA rs2010963 polymorphism is associated with susceptibility to cancer, especially in African population. Stratified analysis suggests that rs2010963 is also associated with osteosarcoma, urogenital, renal, thyroid, and breast cancer. Trial sequential analysis also validated our findings.

目的先前评估VEGFA rs2010963多态性与癌症风险关系的观察性研究报告了不一致的结果。我们进行了这项荟萃分析,以确认rs2010963与总体癌症的确切相关性。材料和方法从在线数据库中检索到70项符合条件的研究,包括25,245例癌症患者和28,219例对照,其中包括以95%置信区间分析优势比(OR)的研究。结果在总体癌症和人群中,VEGFA rs2010963与癌症无相关性。我们观察到有统计学意义的关联(p <0.05) rs2010963与非洲人群癌症风险增加的相关性(共显性1:OR = 1.44,显性模型:OR = 1.41,等位基因模型:OR = 1.24)。在共显性1型(OR = 1.22)、共显性2型(OR = 1.55)、共显性3型(OR = 1.24)、显性(OR = 1.29)、隐性(OR = 1.36)和等位基因模型(OR = 1.24)下,癌型分层与泌尿生殖系统癌风险有显著相关性。在肾细胞癌中,共显性1 (OR = 1.28)、共显性2 (OR = 1.68)、显性(OR = 1.38)和等位基因模型(OR = 1.29)四种遗传模型具有显著相关性。对于骨肉瘤,共显性3型(OR = 0.81)和过显性模型(OR = 1.16)具有显著相关性。三种遗传模型显示了对甲状腺癌的保护作用,包括共显性、隐性和等位基因模型(OR分别为0.48、0.59和0.68)。只有亚洲乳腺癌患者的隐性模式(OR = 1.16)和混合患者的共显性3和隐性模式(OR = 1.43和1.39)存在关联。在总体癌症和人群中,未发现VEGFA rs2010963与癌症之间的关联。结论本荟萃分析表明,VEGFA rs2010963多态性与癌症易感性相关,尤其是在非洲人群中。分层分析表明rs2010963也与骨肉瘤、泌尿生殖系统、肾脏、甲状腺和乳腺癌相关。试验序贯分析也证实了我们的发现。
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引用次数: 3
Association of CYP17 gene polymorphism (rs743572) with polycystic ovary syndrome CYP17基因多态性(rs743572)与多囊卵巢综合征的关系
IF 0.7 Q4 GENETICS & HEREDITY Pub Date : 2022-02-01 DOI: 10.1016/j.mgene.2021.100996
R.M. Ali , T.P. Shkurat , A.A. Alexandrova , E.S. Bugrimova , S.V. Lomteva , M.N. Ammar
<div><h3>Introduction</h3><p><span>Polycystic ovary syndrome (PCOS) affects 4–20% of women of reproductive age. The contribution of genetic factors to the etiology of PCOS is 79%, and the contribution of the environment, lifestyle and individual history is 21%. It is believed that the increased production of androgens in PCOS is a consequence of dysregulation of various genes involved in the synthesis of steroid hormones, such as </span><em>CYP11</em>, <em>CYP17</em> and <em>CYP19</em>. Conflicting data on the association of the <em>CYP17</em><span> gene polymorphism (</span><em>rs743572</em>) with PCOS determined the purpose of this meta-analysis - to study this association in a larger general population in order to determine whether polymorphism in the <em>CYP17</em> T/C promoter is associated with an increased risk of PCOS.</p></div><div><h3>Methods</h3><p>A systematic search was carried out in various databases for articles on the relationship between <em>rs743572</em> polymorphism of gene <em>CYP17</em> and PCOS risk published up to May 2021. The articles were analyzed in accordance with the recommendations for systematic reviews and meta-analyzes (PRISMA). The criteria for inclusion of studies in the meta-analysis were: (i) case-control studies with healthy populations as controls; (ii) a study describing the diagnostic criteria for PCOS, sources of cases and controls; (iii) studies of genetic associations showing the frequency of genotypes of the studied polymorphism and PCOS in humans; (iv) sufficient genotype data to calculate odds ratio (OR) and 95% confidence interval (CI). The control HWE was first assessed for each study using the chi-square test (χ2). Meta-analysis was performed using Review Manager version 5.4. Odds ratios (OR) with a 95% confidence interval (CI) were used to assess the strength of the association between the <em>rs743572</em> polymorphism of gene <em>CYP17</em> and PCOS. Pooled OR was calculated for dominant (CC + TC vs. TT), recessive (CC vs. TC + TT), and allelic (C vs. T) models, as well as for homozygous (CC vs. TT) and heterozygous (TC vs. TT) models.</p></div><div><h3>Results</h3><p>Out of 577 potentially relevant articles, 17 articles were selected for eligibility assessment after excluding irrelevant and duplicate articles. 2283 cases and 2200 controls were evaluated to identify the relationship between the <em>rs743572</em> polymorphism of the <em>CYP17</em> gene and PCOS. Carriage of allele C was considered to increase the risk of PCOS. A significant association with PCOS risk was found for <em>rs743572</em> in the general population using dominant, allelic and heterozygous models: (<em>p</em> = 0.005, OR = 1.41, 95% CI 1.11–1.79; p = 0, 006, OR = 1.28, 95% CI 1.07–1.53; <em>p</em> = 0.01, OR = 1.38, 95% CI 1.07–1.77), respectively. An association between this polymorphism and PCOS risk was not found in the recessive and homozygous models: (<em>p</em> = 0.16, OR = 1.21, 95% CI 0.93–1.58; p = 0, 08, OR = 
多囊卵巢综合征(PCOS)影响4-20%的育龄妇女。遗传因素对多囊卵巢综合征病因的贡献为79%,环境、生活方式和个人病史的贡献为21%。人们认为,多囊卵巢综合征中雄激素的产生增加是参与合成类固醇激素的各种基因失调的结果,如CYP11、CYP17和CYP19。关于CYP17基因多态性(rs743572)与PCOS相关性的相互矛盾的数据决定了本荟萃分析的目的——在更大的一般人群中研究这种相关性,以确定CYP17 T/C启动子多态性是否与PCOS风险增加相关。方法系统检索截至2021年5月在各数据库发表的CYP17基因rs743572多态性与PCOS风险关系的文章。根据系统评价和荟萃分析(PRISMA)的建议对文章进行分析。纳入meta分析研究的标准是:(i)以健康人群为对照的病例对照研究;(ii)一项研究,描述多囊症的诊断标准、病例来源及对照;(iii)基因关联研究,显示所研究的多态性与人类多囊卵巢综合征基因型的频率;(iv)足够的基因型数据来计算优势比(OR)和95%置信区间(CI)。每个研究的对照HWE首先采用卡方检验(χ2)评估。meta分析使用Review Manager版本5.4进行。采用95%置信区间(CI)的优势比(OR)来评估CYP17基因rs743572多态性与PCOS之间的关联强度。计算显性(CC + TC vs. TT)、隐性(CC vs. TC + TT)和等位基因(C vs. T)模型以及纯合子(CC vs. TT)和杂合子(TC vs. TT)模型的合并OR。结果在577篇可能相关的文献中,剔除不相关和重复的文献,筛选出17篇文献进行合格性评估。对2283例患者和2200例对照组进行分析,以确定CYP17基因rs743572多态性与PCOS的关系。携带等位基因C被认为会增加多囊卵巢综合征的风险。使用显性、等位基因和杂合模型发现,rs743572在普通人群中与PCOS风险显著相关(p = 0.005, OR = 1.41, 95% CI 1.11-1.79;p = 0.006, OR = 1.28, 95% CI 1.07-1.53;p = 0.01, = 1.38, 95% CI 1.07 - -1.77)。在隐性和纯合子模型中未发现该多态性与PCOS风险之间的关联(p = 0.16, OR = 1.21, 95% CI 0.93-1.58;p = 0, 08年= 1.31,95% CI 0.96 - -1.78)。根据参与者种族进行的亚组分析显示,亚洲人群和欧洲人群之间存在显著相关性:在优势模型中,亚洲人群的相关性更高(p = 0.04, OR = 1.59, 95% CI 1.02-2.48)。结论荟萃分析显示,携带C等位基因rs743572的人患PCOS的风险增加,因此,rs743572多态性是PCOS的危险因素,尤其是在亚洲人群中。为了确定PCOS的遗传风险,需要进一步研究不同的单倍型及其与PCOS风险的关系。
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引用次数: 1
Comparison of polymorphism 139C > A ( (rs737008) of protamine 1 gene in infertile men with diagnosis of oligospermia and asthenospermia 精蛋白1基因多态性139C > A ((rs737008)在诊断为少精症和弱精症的不育男性中的比较
IF 0.7 Q4 GENETICS & HEREDITY Pub Date : 2022-02-01 DOI: 10.1016/j.mgene.2021.100978
Mehdi Mohsenzadeh , Aliyar Pirouzi , Seyedeh Fereshteh Saadat , Mahmood Dehghani Ashkezari

The male infertility accounts for about half of the infertility in couples. The idiotypic asthenospermia and oligospermia, which mostly occur as a result of genetic mutations, are among the main causes of male infertility. Until now, the relationship between different SNPs in the PRM1 gene and male infertility have been reported. In this study, we evaluated the possible correlation between 139C > A (rs737008) SNP in the PRM1 gene and asthenospermia/oligospermia in patients who referred to the Gerash Infertility Center. To aim this, three groups were considered in this study including healthy fertile males, asthenospermia patients and the patients suffering from oligospermia. After DNA extraction from their blood samples, the PCR was carried out to amplify a 558 bp PRM1 gene fragment. Then, the RFLP technique was performed to identified the SNP in the PCR products. Our results showed that the frequency of the 139C > A (rs737008) SNP in the population study was 41%. We found no significant differences between the SNP and asthenospermia/oligospermia in the current study. According to the demographic data, no significant differences were also found between smoking or alcohol consumption and male infertility in this study.

男性不育约占夫妻不育的一半。独特型弱精子症和少精子症主要由基因突变引起,是男性不育的主要原因之一。到目前为止,PRM1基因的不同snp与男性不育之间的关系已有报道。在这项研究中,我们评估了PRM1基因中的139C > A (rs737008) SNP与转至Gerash不孕不育中心的患者的弱精子症/少精子症之间可能的相关性。为此,本研究考虑了健康有生育能力的男性、弱精子症患者和少精子症患者三组。从血样中提取DNA后,进行PCR扩增558 bp的PRM1基因片段。然后用RFLP技术鉴定PCR产物中的SNP。我们的结果显示,139C > A (rs737008) SNP在人群研究中的频率为41%。在目前的研究中,我们发现SNP与弱精子症/少精子症之间没有显著差异。根据人口统计数据,本研究也未发现吸烟或饮酒与男性不育之间存在显著差异。
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引用次数: 0
Genetic analysis of IL4 (rs2070874), IL17A (rs2275913), and IL33 (rs7044343) polymorphisms in Iraqi multiple sclerosis patients by using T-plex real-time PCR method 采用T-plex实时PCR方法对伊拉克多发性硬化患者IL4 (rs2070874)、IL17A (rs2275913)和IL33 (rs7044343)多态性进行遗传分析
IF 0.7 Q4 GENETICS & HEREDITY Pub Date : 2022-02-01 DOI: 10.1016/j.mgene.2021.100986
Milad A. Al-Naseri , Ehab D. Salman , Ali H. Ad'hiah

Multiple sclerosis (MS) is a neurodegenerative autoimmune disease that leads to axon demyelination and white matter plaque formation. The aim of the present study is to inspect the association between single nucleotide polymorphisms (SNPs) of IL4 (rs2070874), IL17A (rs2275913), and IL33 (rs7044343) and MS predisposition. The genotyping of the three genetic variants was conducted through tetra-plex-based real-time polymerase chain reaction (T-plex RT-PCR) method combined with the SYBR green fluorescent dye. Sixty-eight Iraqi MS patients and fifty healthy individuals (controls) were enrolled, and their DNA was extracted from whole blood. The optimum annealing/extension temperature was set at 58 °C. For each SNP, allele-specific fragments were identified by their melting points generated through real-time PCR. Agarose gel electrophoresis was performed to confirm the results. The distribution of the IL4 SNP genotypes in patients and controls was in good agreement with Hardy-Weinberg equilibrium, while there was a skewness from Hardy-Weinberg equilibrium in patients' group for both IL17A and IL33 SNPs. Multinomial logistic regression analysis was performed to investigate the association between the studied variants under four genetic models (dominant, recessive, over-dominant, and co-dominant) and MS risk. However, there were no significant differences in genotype/allele frequencies of three SNPs between patients and controls. Taken together, our study indicated that genotype/allele of IL4 (rs2070874), IL17A (rs2275913), and IL33 (rs7044343) SNPs may not play a considerable role in the predisposition to MS in this sample of the Iraqi population. However, SYBR green-dependent T-plex RT-PCR can be a cost-effective, reproducible and simple method for genotyping SNPs of interest.

多发性硬化症(MS)是一种神经退行性自身免疫性疾病,可导致轴突脱髓鞘和白质斑块形成。本研究的目的是检测IL4 (rs2070874)、IL17A (rs2275913)和IL33 (rs7044343)的单核苷酸多态性(snp)与MS易感性之间的关系。采用基于四聚体的实时聚合酶链反应(T-plex RT-PCR)方法结合SYBR绿色荧光染料对3个遗传变异进行基因分型。研究人员招募了68名伊拉克多发性硬化症患者和50名健康个体(对照组),并从他们的全血中提取DNA。最佳退火/拉伸温度为58℃。对于每个SNP,通过实时PCR产生的熔点来鉴定等位基因特异性片段。琼脂糖凝胶电泳证实了结果。IL4 SNP基因型在患者和对照组中的分布与Hardy-Weinberg平衡很好地一致,而IL17A和IL33 SNP在患者组中均存在Hardy-Weinberg平衡的偏态。采用多项逻辑回归分析来研究四种遗传模型(显性、隐性、过显性和共显性)下的变异与MS风险之间的关系。然而,三个snp的基因型/等位基因频率在患者和对照组之间没有显著差异。综上所述,我们的研究表明,IL4 (rs2070874)、IL17A (rs2275913)和IL33 (rs7044343) snp的基因型/等位基因在伊拉克人群的MS易感性中可能没有相当大的作用。然而,SYBR绿色依赖T-plex RT-PCR是一种成本效益高、重复性好且简单的snp基因分型方法。
{"title":"Genetic analysis of IL4 (rs2070874), IL17A (rs2275913), and IL33 (rs7044343) polymorphisms in Iraqi multiple sclerosis patients by using T-plex real-time PCR method","authors":"Milad A. Al-Naseri ,&nbsp;Ehab D. Salman ,&nbsp;Ali H. Ad'hiah","doi":"10.1016/j.mgene.2021.100986","DOIUrl":"10.1016/j.mgene.2021.100986","url":null,"abstract":"<div><p><span>Multiple sclerosis (MS) is a neurodegenerative autoimmune disease that leads to axon demyelination and white matter plaque formation. The aim of the present study is to inspect the association between single nucleotide polymorphisms (SNPs) of </span><em>IL4</em> (rs2070874)<span><em>, </em><em>IL17A</em></span> (rs2275913), and <em>IL33</em><span><span><span> (rs7044343) and MS predisposition. The genotyping of the three genetic variants was conducted through tetra-plex-based real-time polymerase chain reaction (T-plex RT-PCR) method combined with the SYBR green fluorescent dye. Sixty-eight Iraqi MS patients and fifty healthy individuals (controls) were enrolled, and their </span>DNA was extracted from whole blood. The optimum annealing/extension temperature was set at 58 °C. For each SNP, allele-specific fragments were identified by their melting points generated through real-time PCR. </span>Agarose gel electrophoresis was performed to confirm the results. The distribution of the </span><em>IL4</em> SNP genotypes in patients and controls was in good agreement with Hardy-Weinberg equilibrium, while there was a skewness from Hardy-Weinberg equilibrium in patients' group for both <em>IL17A</em> and <em>IL33</em> SNPs. Multinomial logistic regression analysis was performed to investigate the association between the studied variants under four genetic models (dominant, recessive, over-dominant, and co-dominant) and MS risk. However, there were no significant differences in genotype/allele frequencies of three SNPs between patients and controls. Taken together, our study indicated that genotype/allele of <em>IL4</em> (rs2070874)<em>, IL17A</em> (rs2275913), and <em>IL33</em> (rs7044343) SNPs may not play a considerable role in the predisposition to MS in this sample of the Iraqi population. However, SYBR green-dependent T-plex RT-PCR can be a cost-effective, reproducible and simple method for genotyping SNPs of interest.</p></div>","PeriodicalId":38190,"journal":{"name":"Meta Gene","volume":"31 ","pages":"Article 100986"},"PeriodicalIF":0.7,"publicationDate":"2022-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41375800","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
An in silico analysis of genome-wide expression profiles of the effects of exhaustive exercise identifies heat shock proteins as the key players 一项对穷尽运动影响的全基因组表达谱的计算机分析确定热休克蛋白是关键的参与者
IF 0.7 Q4 GENETICS & HEREDITY Pub Date : 2022-02-01 DOI: 10.1016/j.mgene.2022.101012
Carlos A. Orozco , Yeimy González-Giraldo , Diego A. Bonilla , Diego A. Forero

Physical exercise induces important system disturbances in the human body in a dose-response manner. Meta-analyses of genome-wide expression studies (GWES) might contribute to identify gene expression patterns and to a better understanding of the molecular mechanisms behind the complexity of adaptations to exercise, under a systems biology approach. Here, we aimed to analyze available data for human GWES that have evaluated the effect of exhaustive exercise in peripheral blood mononuclear cells (PBMC) and white blood cells (WBC). Three primary datasets retrieved from the NCBI Gene Expression Omnibus were meta-analyzed using a random effects model in the NetworkAnalyst software. After identifying nine differentially expressed genes (DEGs), we performed functional enrichment analyses to extract relevant biological information. A protein-protein interactions network on DEGs was built to evaluate the associated regulatory pathways. We found that five upregulated genes were members of the heat shock protein family, one of the top stress-response groups of genes. The enrichment analysis revealed key roles of the DEGs on the cellular adaptations to exercise-induced stress (i.e., temperature stimulus, topologically-incorrect and unfolded proteins). Our comparison analysis of DEG signatures found in blood cells with the expression pattern on muscle skeletal tissue showed some common genes. Thus, novel DEGs that might serve as hormetic mediators to exercise-induced adaptations were identified. Further experimental research is needed to validate these findings.

体育锻炼以剂量-反应方式诱发人体重要的系统紊乱。在系统生物学方法下,全基因组表达研究(GWES)的荟萃分析可能有助于确定基因表达模式,并更好地理解运动适应复杂性背后的分子机制。在这里,我们的目的是分析人类GWES的现有数据,这些数据已经评估了穷尽运动对外周血单核细胞(PBMC)和白细胞(WBC)的影响。使用NetworkAnalyst软件中的随机效应模型对从NCBI基因表达综合数据库中检索到的三个主要数据集进行meta分析。在鉴定了9个差异表达基因(DEGs)后,我们进行了功能富集分析,以提取相关的生物学信息。建立了DEGs上的蛋白-蛋白相互作用网络来评估相关的调控途径。我们发现5个上调的基因是热休克蛋白家族的成员,热休克蛋白家族是最重要的应激反应基因群之一。富集分析揭示了deg在细胞适应运动诱导应激(即温度刺激、拓扑不正确和未折叠的蛋白质)中的关键作用。我们对血细胞中发现的DEG特征与肌肉骨骼组织的表达模式进行了比较分析,发现了一些共同的基因。因此,新的deg可能作为运动诱导适应的促热介质被确定。需要进一步的实验研究来验证这些发现。
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引用次数: 1
Identification and characterization of genetic variants of TGFB1 in patients with congenital heart disease 先天性心脏病患者TGFB1基因变异的鉴定和表征
IF 0.7 Q4 GENETICS & HEREDITY Pub Date : 2022-02-01 DOI: 10.1016/j.mgene.2021.100987
Manohar Lal Yadav , Ashutosh Narayan Bhasker , Ashok Kumar , Bhagyalaxmi Mohapatra

Background

Congenital heart diseases (CHDs) are believed to be caused by abnormal gene functioning during embryonic heart development. Transforming growth factor-beta1 (TGFB1) is known to express in the early embryonic heart and regulates heart development.

Methods

In this study, the coding region of TGFB1 was screened for 238 CHD patients by Sanger sequencing. Case-control association study was performed to identify the risk allele for CHD. In silico and in vitro approaches were used to elucidate the role of rare missense variant of TGFB1 using P19 cell line.

Results

We identified a rare missense variant (c.29C > G; p.P10R) in the signal peptide of the TGFB1 in two cases (MAF = 0.0042017), which was absent in 200 healthy controls. Although this variation is reported in the gnomAD (rs1800470, MAF =0.0002386) and the ExAC database (MAF = 0.00064), it is not reported in INDEX-db and GenomeAsia 100K databases. We also found three polymorphisms, namely c.29C > T; p.P10L, c.74G > C; p.R25P and c.788C > T; p.T263I. Case-control studies revealed that c.29C > T (rs1800470) variation is a risk factor, significantly associated with the CHD phenotype (OR = 1.4361, P = 0.0083). However, c.74G > C (rs1800471) and c.788C > T (rs1800472) alleles are not associated with the disease. Additionally, two rare synonymous variations, i.e. c.348C > T; p.T116T (MAF = 0.0042017) and c.501C > T; p.H167H (MAF = 0.00210084) were also identified in two and one cases, respectively. These were absent in the 200 controls. In silico analysis showed that missense variation p.P10R enhances the formation of the α-helix in the signal peptide, which possibly increases the TGFB1 secretion. The luciferase-reporter assay demonstrated significantly increased activity of p(SBE)4 (P = 0.016) and p(CAGA)12 (P = 0.0004) promoters in response to p.P10R mutant versus wild-type TGFB1.

Conclusion

The p.P10R variant of TGFB1 implicated a gain-of-function activity which is potentially deleterious, while the c.29C > T variation is a risk factor associated with the CHD.

研究背景先天性心脏病(CHDs)被认为是由胚胎心脏发育过程中基因功能异常引起的。已知转化生长因子- β 1 (TGFB1)在早期胚胎心脏中表达并调节心脏发育。方法采用Sanger测序法对238例冠心病患者TGFB1编码区进行筛选。通过病例-对照关联研究确定冠心病的危险等位基因。采用硅和体外方法在P19细胞系中阐明TGFB1罕见错义变体的作用。结果鉴定出一种罕见的错义变异(c.29C >G;p.P10R)在2例TGFB1信号肽中的表达(MAF = 0.0042017),而在200例健康对照中不存在。虽然这种变异在gnomAD (rs1800470, MAF =0.0002386)和ExAC数据库(MAF = 0.00064)中有报道,但在INDEX-db和GenomeAsia 100K数据库中没有报道。我们还发现了三个多态性,即c.29C >T;p.P10L, c.74G >C;p.R25P和c.788C >T;p.T263I。病例对照研究显示,c.29C >T (rs1800470)变异是一个危险因素,与冠心病表型显著相关(OR = 1.4361, P = 0.0083)。然而,c.74G >C (rs1800471)和C . 788c >T (rs1800472)等位基因与该病无关。此外,两个罕见的同义变体,即c.348C >T;p.T116T (MAF = 0.0042017)和c.501C >T;p.H167H (MAF = 0.00210084)也分别在2例和1例中被鉴定出来。这些在200个对照组中都不存在。芯片分析显示错义变异p.P10R增强了信号肽α-螺旋的形成,可能增加了TGFB1的分泌。荧光素酶报告试验显示,p(SBE)4 (p = 0.016)和p(CAGA)12 (p = 0.0004)启动子的活性在p.P10R突变体与野生型TGFB1的反应中显著增加。结论TGFB1的p.P10R变体具有潜在的功能获得活性,而c.29C >T变异是与冠心病相关的危险因素。
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引用次数: 2
Sequence-based assessment of expediency of tri-, tetra-, and penta-nucleotides repeat autosomal STR markers in the central Indian population using Next Generation Sequencing (NGS) 利用下一代测序(NGS)对印度中部人群中三、四、五核苷酸重复常染色体STR标记的便利性进行基于序列的评估
IF 0.7 Q4 GENETICS & HEREDITY Pub Date : 2022-02-01 DOI: 10.1016/j.mgene.2021.100983
Hirak Ranjan Dash , Kamayani Vajpayee , Ritesh Shukla , Ankit Srivastava , Pankaj Shrivastava , Surajit Das

Present-day forensic DNA analysis is witnessing a paradigm shift from size-based allele determination by capillary electrophoresis (CE) to sequence-based allele determination by Next Generation Sequencing (NGS). An attempt has been made to evaluate the sequence-based allelic data at two tri (D12ATA63, D22S1045), two tetra (D18S51, D1S1656), and two penta- (Penta D, Penta E) nucleotides repeat STR markers in the central Indian population. 183.33 times allele gain has been observed in D1S1656 after evaluating individual allelic sequences in comparison to the size-based alleles. Despite not witnessing any sequence-based allele gain, highest power of discrimination (0.978), Polymorphic Information Content (0.9), Power of Exclusion (0.807), typical paternity index (5.31), Expected heterozygosity (0.906), and lowest matching probability (0.022) was observed at Penta E marker suggesting its more usefulness among the considered markers for forensic and paternity applications. A giant leap in sequence-based allelic information showed a significant increase in forensic and paternity parameters (p = 0.646) in D1S1656. Substitution of TAGA with either TAGG or TAGC was found to be responsible for the generation of sequence variant alleles in D1S1656. Besides, the observation of rs4847015 SNP in 11.5% of sequences further increases the evidentiary value of D1S1656 in comparison to other STR markers analyzed in this study.

目前法医DNA分析正见证着从毛细管电泳(CE)的基于大小的等位基因测定到下一代测序(NGS)的基于序列的等位基因测定的范式转变。在印度中部人群中,对两个三核苷酸(D12ATA63, D22S1045),两个四核苷酸(D18S51, D1S1656)和两个五核苷酸(penta D, penta E)重复STR标记进行了基于序列的等位基因数据评估。与基于大小的等位基因相比,对单个等位基因序列进行评估后,在D1S1656中观察到183.33倍的等位基因增益。尽管没有观察到任何基于序列的等位基因获得,但在Penta E标记上观察到最高的辨别力(0.978),多态信息含量(0.9),排除力(0.807),典型父系指数(5.31),预期杂合度(0.906)和最低的匹配概率(0.022),这表明它在法医和父系鉴定应用中更有用。基于序列的等位基因信息的巨大飞跃显示,D1S1656的法医和父权参数显著增加(p = 0.646)。在D1S1656中,TAGG或TAGC替代TAGA可导致序列变异等位基因的产生。此外,在11.5%的序列中发现rs4847015 SNP,与本研究分析的其他STR标记相比,进一步增加了D1S1656的证据价值。
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引用次数: 0
Identification of hub genes associated with human osteoarthritis cartilage: An in silico approach 鉴定与人类骨关节炎软骨相关的枢纽基因:一种计算机方法
IF 0.7 Q4 GENETICS & HEREDITY Pub Date : 2022-02-01 DOI: 10.1016/j.mgene.2022.101015
Swetha Sunkar, K. Namratha, Desam Neeharika

Osteoarthritis is a common orthopedic disease among the greatest causes of morbidity and disability worldwide; however, research on its pathogenesis and diagnostic methods remains limited. The present study focuses on analyzing the microarray dataset to elucidate the hub genes and pathways related to the osteoarthritis. The gene expression data was retrieved from GEO database (GSE169077) and differentially expressed genes were determined using GEO2R tool based on adjusted P-value and log2FC values based on which 27 genes were found to be significant of which 9 genes were up-regulated while 18 genes were down-regulated. This was followed by gene enrichment analysis identify the related Gene Ontology terms and pathways. The Protein-Protein Network is constructed with 15 nodes and 22 edges using STRING database and then exported to Cytoscape 3.8 to predict the hub genes. The hub genes identified are POSTN, COL1A2, COL1A1, BMP1, MXRA5, MMP13 and SERPINF1. The hub genes identified were not only found to be associated with bone related disorders but also few were involved in other diseases. Therefore targeting these genes for disease management could be a viable option in osteoarthritis.

骨关节炎是一种常见的骨科疾病,是世界范围内发病率和致残率最高的疾病之一;然而,对其发病机制和诊断方法的研究仍然有限。本研究的重点是分析微阵列数据集,以阐明与骨关节炎相关的枢纽基因和途径。从GEO数据库(GSE169077)中检索基因表达数据,利用GEO2R工具根据调整后的p值和log2FC值测定差异表达基因,发现27个基因显著,其中9个基因上调,18个基因下调。随后进行基因富集分析,确定相关的基因本体术语和途径。利用STRING数据库构建了包含15个节点和22条边的Protein-Protein网络,并导出到Cytoscape 3.8中进行枢纽基因预测。中心基因为POSTN、COL1A2、COL1A1、BMP1、MXRA5、MMP13和serinf1。所鉴定的枢纽基因不仅与骨相关疾病有关,而且很少与其他疾病有关。因此,针对这些基因的疾病管理可能是骨关节炎的一个可行的选择。
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引用次数: 1
Ace gene polymorphisms are ineffective on contrast induced nephropathy Ace基因多态性对造影剂肾病无效
IF 0.7 Q4 GENETICS & HEREDITY Pub Date : 2022-02-01 DOI: 10.1016/j.mgene.2021.100992
İlhan Kılıç , Orkide Palabıyık , Gökay Taylan , Tammam Sipahi , Sedat Üstündağ

Background: The renin–angiotensin system regulates the haemodynamics. ACE gene polymorphisms are known to influence serum angiotensin converting enzyme level. Contrast nephropathy develops after exposure to intravascular contrast media that influence vascular hemodynamics. ACE gene polymorpisms may have an enhancing role in contrast media related renal injury.

The aim of the study: The aim of this study was to investigate the impact of ACE insertion/deletion (I/D) polymorphism in contrast-induced nephropathy (CIN) development.

Methods: 194 patients with chronic kidney disease that were administered iodinated contrast media were examined. Patients were monitored for at least 7 days for CIN development after parenteral contrast exposure. Control and patient groups were divided in terms of CIN development status. Polymerase chain reaction was performed for the genotyping of the ACE gene polymorphism from DNAs that were isolated from peripheral blood of the patients.

Results: 83 patients with CIN (34 women, 49 men) and 111 control patients without CIN (43 women, 68 men) were enrolled. Gender was not statistically different between the two groups (p = 0.75). The average age of the CIN group (71) was greater than that of the control group (68). No association was detected between ACE gene polymorphism (II, ID AND DD genotypes) and CIN in both patients and controls.

Conclusion: ACE gene polymorphisms does not influence contrast induced nephropathy development.

背景:肾素-血管紧张素系统调节血流动力学。已知ACE基因多态性影响血清血管紧张素转换酶水平。造影剂肾病是在暴露于影响血管血流动力学的血管内造影剂后发生的。ACE基因多态性可能在造影剂相关性肾损伤中起增强作用。研究目的:本研究的目的是研究ACE插入/缺失(I/D)多态性在造影剂肾病(CIN)发展中的影响。方法:对194例慢性肾脏病患者行碘造影剂检查。在静脉注射造影剂暴露后,对患者进行至少7天的CIN发展监测。根据CIN的发展情况分为对照组和患者组。采用聚合酶链反应对患者外周血中分离的ACE基因多态性进行基因分型。结果:共纳入83例CIN患者(女性34例,男性49例)和111例非CIN对照患者(女性43例,男性68例)。两组患者性别差异无统计学意义(p = 0.75)。CIN组平均年龄(71岁)大于对照组(68岁)。在患者和对照组中均未发现ACE基因多态性(II、ID和DD基因型)与CIN之间的相关性。结论:ACE基因多态性不影响造影剂肾病的发展。
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引用次数: 0
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Meta Gene
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