SNPs, Single Nucleotide Polymorphisms

SNPs,单核苷酸多态性
  • 文章类型: Journal Article
    许多研究已经建立了炎症复合体内的基因变异与不同种族的牙周炎和心血管疾病发病率之间的联系。本研究探讨PYCARD基因多态性与牙周病和冠心病(CHD)易感性的关系及其与临床牙周指标的相关性。共有120名参与者报名参加,分为四组:30名健康对照(C),30例广泛性牙周炎(P),30例动脉粥样硬化性冠心病,但临床健康的牙周组织(AS-C),和30名同时患有动脉粥样硬化性CHD和广泛性牙周炎(AS-P)的患者。我们记录了人口统计数据,采集血液样本,测量牙周指数,包括菌斑指数,临床附着丧失,探查时出血,和口袋深度。使用常规聚合酶反应分析PYCARD基因的基因组变体。在P组中观察到T和G等位基因突变的显着患病率以及PYCARDC/T(rs8056505)和PYCARDA/G(rs372507365)中CT和TT基因型的分布较高,AS-P,和AS-C这些单核苷酸多态性(SNP)也与临床牙周炎指数的严重程度呈正相关。我们的研究结果表明,T和G等位基因的频率增加和CT的分布,TT,PYCARDSNP中的AG基因型与牙周病和CHD风险升高显著相关。这些SNP可能参与这些病症的发病机理。该研究加强了这些遗传标记作为伊拉克人口中两种疾病的危险因素的潜在作用。
    Numerous studies have established a link between gene variants within the inflammasome complex and the incidence of periodontitis and cardiovascular illness across various ethnic groups. This study investigated the association between PYCARD gene polymorphism and susceptibility to periodontal disease and coronary heart disease (CHD) and their correlation with clinical periodontal indices. A total of 120 participants were enrolled, categorized into four groups: 30 healthy controls (C), 30 patients with generalized periodontitis (P), 30 patients with atherosclerotic CHD but clinically healthy periodontium (AS-C), and 30 patients with both atherosclerotic CHD and generalized periodontitis (AS-P). We recorded demographic data, collected blood samples, and measured periodontal indices, including plaque index, clinical attachment loss, bleeding on probing, and pocket depth. The genomic variant of the PYCARD gene was analyzed using a conventional polymerase reaction. A significant prevalence of T and G allele mutations and a higher distribution of CT and TT genotypes in PYCARD C/T (rs8056505) and the AG genotype in PYCARD A/G (rs372507365) were observed in groups P, AS-P, and AS-C. These single nucleotide polymorphisms (SNPs) were also positively correlated with the severity of clinical periodontitis indices. Our findings suggest that the increased frequency of T and G alleles and the distribution of CT, TT, and AG genotypes in PYCARD SNPs are significantly associated with an elevated risk for periodontal disease and CHD. These SNPs may participate in the pathogenesis of these conditions. The study reinforces the potential role of these genetic markers as risk factors for both diseases in the Iraqi population.
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  • 文章类型: Journal Article
    遗传变异对于了解包括服务器急性呼吸道综合症冠状病毒2(SARSCoV-2)在内的感染的临床结果至关重要。人类免疫基因与SARSCoV-2的免疫反应一直在研究中。Toll样受体(TLRs),一组蛋白质,对包括细菌和病毒在内的微生物检测很重要。TLR4可以感知由Covid-19感染触发的细菌脂多糖(LPS)和内源性氧化磷脂。两个TLR4单核苷酸多态性(SNPs),Asp299Gly和Thr399Ile与传染病有关。没有研究关注这些与新冠肺炎相关的SNP。这项研究旨在通过比较一组患者和普通人群,揭示新冠肺炎感染与这些SNP之间的关联。限制性片段长度多态性(RFLP)用于鉴定普通人群(n=114)和新冠肺炎患者组(n=125)中的TLR4SNP。结果发现TLR4多态性与新冠肺炎感染之间没有关联,因为数据显示对比组之间没有统计学上的显著差异。这表明这些TLR4SNP可能与新冠肺炎感染无关。
    Genetic variations are critical for understanding clinical outcomes of infections including server acute respiratory syndrome coronavirus 2 (SARS CoV-2). The immunological reactions of human immune genes with SARS CoV-2 have been under investigation. Toll-like receptors (TLRs), a group of proteins, are important for microbial detections including bacteria and viruses. TLR4 can sense both bacterial lipopolysaccharides (LPS) and endogenous oxidized phospholipids triggered by Covid-19 infection. Two TLR4 single nucleotide polymorphisms (SNPs), Asp299Gly and Thr399Ile have been linked to infectious diseases. No studies have focused on these SNPs in association with Covid-19. This study aims to reveal the association between Covid-19 infection with these SNPs by comparing a group of patients and a general population. Restriction fragment length polymorphisms (RFLP) were used to identify the TLR4 SNPs in both the general population (n = 114) and Covid-19 patient groups (n = 125). The results found no association between the TLR4 polymorphisms and Covid-19 infections as the data showed no statistically significant difference between the compared groups. This suggested that these TLR4 SNPs may not be associated with Covid-19 infections.
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  • 文章类型: Journal Article
    未经授权:本研究旨在探讨毛脉络膜色素上皮病(PPE)的自然病程。
    未经评估:一项回顾性队列研究。
    UNASSIGNED:从截至2020年9月由548例CSC患者组成的京都中心性浆液性脉络膜视网膜病变(CSC)队列中,我们纳入了2013年1月至2016年12月期间连续单侧急性或慢性CSC患者。
    未经授权:所有患者都接受了完整的眼科检查,包括多模态成像,如眼底自发荧光,谱域光学相干层析成像,和荧光素血管造影/吲哚菁绿血管造影和/或最佳相干断层扫描血管造影。对被诊断为CSC的眼睛进行了PPE筛查,并对其自然过程进行了评估。我们还评估了ARMS2rs10490924,CFHrs800292,TNFRSF10Ars13278062和GATA5rs6061548基因型与自然过程的关联。
    未经批准:CSC的发生率,硬脉络膜新生血管病变,和毛脉络膜地理萎缩(GA)。
    未经批准:总共,165例单侧CSC患者(平均年龄,55.7±12.6岁;女性,22.4%)来自京都CSC队列。其中,148例(89.7%)被诊断为非CSC眼患有PPE。生存分析显示,在6年的随访中,16.8%的PPE眼睛出现CSC,而非PPE眼睛没有。尽管遗传因素与CSC的发生没有显著的相关性(P>0.05,log-rank检验),脉络膜血管通透性过高(CVH)和中心凹下脉络膜厚度(SFCT)与CSC发生率显著相关(P=0.001,log-rank检验).生存分析表明,在6年的随访中,无CVH的眼睛和SFCT<300μm的眼睛没有发生CSC。在46.4个月的随访中,仅1只患有PPE的眼出现了毛脉络膜新生血管病。在任何研究的眼睛中都没有出现毛脉络膜GA。
    UNASSIGNED:这项研究揭示了一个相对较大的日本人群中PPE的自然史。脉络膜血管通透性过高和SFCT是PPE眼CSC发生的重要危险因素。虽然目前的结果不能概括为所有的眼睛与PPE,这些发现具有重要的临床意义。
    UNASSIGNED: To investigate the natural course of pachychoroid pigment epitheliopathy (PPE).
    UNASSIGNED: A retrospective cohort study.
    UNASSIGNED: From the Kyoto central serous chorioretinopathy (CSC) cohort consisting of 548 patients with CSC as of September 2020, we included consecutive unilateral patients with acute or chronic CSC between January 2013 and December 2016.
    UNASSIGNED: All patients underwent complete ophthalmic examination, including multimodal imaging such as fundus autofluorescence, spectral-domain optical coherence tomography, and fluorescein angiography/indocyanine green angiography and/or optimal coherence tomography angiography. The fellow eyes of eyes diagnosed with CSC were screened for PPE, and their natural course was evaluated. We also evaluated the association of ARMS2 rs10490924, CFH rs800292, TNFRSF10A rs13278062, and GATA5 rs6061548 genotypes with the natural course.
    UNASSIGNED: Incidence of CSC, pachychoroid neovasculopathy, and pachychoroid geographic atrophy (GA).
    UNASSIGNED: In total, 165 patients with unilateral CSC (mean age, 55.7 ± 12.6 years; female, 22.4%) were included from the Kyoto CSC cohort. Among them, 148 (89.7%) were diagnosed as having PPE in their non-CSC eye. Survival analysis revealed that 16.8% of PPE eyes developed CSC during the 6-year follow up, whereas non-PPE eyes did not. Although genetic factors did not have significant association with CSC development (P > 0.05, log-rank test), choroidal vascular hyperpermeability (CVH) and subfoveal choroidal thickness (SFCT) were significantly associated with CSC incidence (P = 0.001, log-rank test). Survival analysis showed that eyes without CVH and eyes with SFCT < 300 μm did not develop CSC during the 6-year follow-up. Pachychoroid neovasculopathy developed in only 1 eye with PPE during a follow-up of 46.4 months. Pachychoroid GA did not develop in any of the studied eyes.
    UNASSIGNED: This study revealed a natural history of PPE in a relatively large Japanese cohort. Choroidal vascular hyperpermeability and SFCT were significant risk factors for the development of CSC in PPE eyes. Although the current results cannot be generalized for all eyes with PPE, these findings present an important clinical implication.
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  • 文章类型: Journal Article
    未经证实:肠道微生物组和炎症性肠病(IBD)与抑郁症的发展有关,但它们的相互作用对抑郁风险的影响尚不清楚.我们旨在分析肠道微生物组和IBD之间的相互作用对抑郁症风险的影响。并探索涉及相互作用的候选基因。
    未经评估:使用来自英国生物库的个体基因型和抑郁特征数据,我们计算了114个肠道微生物组的多遗传风险评分(PRS),溃疡性结肠炎(UC),克罗恩病(CD),分别为总IBD(CD+UC)。通过线性回归模型评估肠道微生物组和IBD之间的相互作用对抑郁症的影响。此外,对于观察到的肠道微生物组PRS和IBDPRS之间的显著相互作用,PLINK软件用于测试相应肠道微生物组PRS和IBDPRS对抑郁症的配对单核苷酸多态性(SNP)相互作用。
    UNASSIGNED:我们在四种抑郁症表型上发现了肠道微生物组和IBD之间的64个候选相互作用,如F_Lachnospirosaceae(RNT)×(CD+UC)患者健康问卷-9(PHQ-9)评分(P=1.48×10-3),F_Veillonellaceae(HB)×UC用于自我报告的抑郁症(P=2.83×10-3)和P_Firmicutes(RNT)×CD用于首次抑郁症发作时的年龄(P=8.50×10-3)。我们观察到肠道微生物组相关SNP×IBD相关SNP的相互作用,例如G_Alloprevotella(HB)相关的rs147650986(GPM6A)×IBD相关的rs114471990(QRICH1)(P=2.26×10-4)。
    未经评估:我们的结果支持肠道微生物组和IBD之间的相互作用对抑郁风险的影响,并报道了几个新的抑郁症候选基因。
    UNASSIGNED: Gut microbiome and inflammatory bowel disease (IBD) are implicated in the development of depression, but the effect of their interactions on the risk of depression remains unclear. We aim to analyze the effect of interactions between gut microbiome and IBD on the risk of depression, and explore candidate genes involving the interactions.
    UNASSIGNED: Using the individual genotype and depression traits data from the UK Biobank, we calculated the polygenetic risk scores (PRS) of 114 gut microbiome, ulcerative colitis (UC), Crohn\'s disease (CD), and total IBD (CD + UC) respectively. The effects of interactions between gut microbiome and IBD on depression were assessed through a linear regression model. Moreover, for observed significant interactions between gut microbiome PRS and IBD PRS, PLINK software was used to test pair-wise single nucleotide polymorphisms (SNPs) interaction of corresponding gut microbiome PRS and IBD PRS on depression.
    UNASSIGNED: We found 64 candidate interactions between gut microbiome and IBD on four phenotypes of depression, such as F_Lachnospiraceae (RNT) × (CD + UC) for patient health questionnaire-9 (PHQ-9) score (P = 1.48 × 10-3), F_Veillonellaceae (HB) × UC for self-reported depression (P = 2.83 × 10-3) and P_Firmicutes (RNT) × CD for age at first episode of depression (P = 8.50 × 10-3). We observed interactions of gut-microbiome-associated SNPs × IBD-associated SNPs, such as G_Alloprevotella (HB)-associated rs147650986 (GPM6A) × IBD-associated rs114471990 (QRICH1) (P = 2.26 × 10-4).
    UNASSIGNED: Our results support the effects of interactions between gut microbiome and IBD on depression risk, and reported several novel candidate genes for depression.
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  • 文章类型: Journal Article
    由严重急性呼吸道综合症冠状病毒2(SARS-CoV-2)引起的冠状病毒病-2019(COVID-19)大流行已经严重影响了世界各地的公共卫生。对SARS-CoV-2致病机制的深入研究对于大流行预防是迫切需要的。然而,SARS-CoV-2的大多数实验室研究必须在生物安全3级(BSL-3)实验室进行,极大地制约了相关实验的进展。在这项研究中,我们使用细菌人工染色体(BAC)方法在VeroE6细胞中组装SARS-CoV-2复制和转录系统,而没有病毒包膜形成,从而避免了冠状病毒暴露的风险。此外,改进的实时定量逆转录PCR(RT-qPCR)方法用于区分全长复制子RNA的复制和亚基因组RNA(sgRNA)的转录.使用SARS-CoV-2复制子,我们证明了SARS-CoV-2的核衣壳(N)蛋白在不连续合成过程中促进了sgRNA的转录。此外,两种N蛋白的高频突变体,R203K和S194L,能明显提高复制子的转录水平,暗示这些突变可能使SARS-CoV-2更快地传播和繁殖。此外,remdesivir和氯喹,在先前的研究中,两种众所周知的药物被证明对冠状病毒有效,也抑制了我们复制子的转录,表明该系统在抗病毒药物发现中的潜在应用。总的来说,我们开发了一种生物安全且有价值的SARS-CoV-2复制子系统,该系统可用于研究病毒RNA合成的机制,并且在新型抗病毒药物筛选中具有潜力。
    The coronavirus disease-2019 (COVID-19) pandemic caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has seriously affected public health around the world. In-depth studies on the pathogenic mechanisms of SARS-CoV-2 is urgently necessary for pandemic prevention. However, most laboratory studies on SARS-CoV-2 have to be carried out in bio-safety level 3 (BSL-3) laboratories, greatly restricting the progress of relevant experiments. In this study, we used a bacterial artificial chromosome (BAC) method to assemble a SARS-CoV-2 replication and transcription system in Vero E6 cells without virion envelope formation, thus avoiding the risk of coronavirus exposure. Furthermore, an improved real-time quantitative reverse transcription PCR (RT-qPCR) approach was used to distinguish the replication of full-length replicon RNAs and transcription of subgenomic RNAs (sgRNAs). Using the SARS-CoV-2 replicon, we demonstrated that the nucleocapsid (N) protein of SARS-CoV-2 facilitates the transcription of sgRNAs in the discontinuous synthesis process. Moreover, two high-frequency mutants of N protein, R203K and S194L, can obviously enhance the transcription level of the replicon, hinting that these mutations likely allow SARS-CoV-2 to spread and reproduce more quickly. In addition, remdesivir and chloroquine, two well-known drugs demonstrated to be effective against coronavirus in previous studies, also inhibited the transcription of our replicon, indicating the potential applications of this system in antiviral drug discovery. Overall, we developed a bio-safe and valuable replicon system of SARS-CoV-2 that is useful to study the mechanisms of viral RNA synthesis and has potential in novel antiviral drug screening.
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  • 文章类型: Journal Article
    泌尿生殖系统癌症包括一组异质性癌症,其中肾细胞癌,膀胱尿路上皮癌,和前列腺腺癌是最常见的亚型。许多研究正在使用各种策略来探索泌尿生殖系统癌症的新型生物标志物。这些生物标志物不会减少对侵入性诊断技术的需求,但也可以用于早期和准确的诊断,以改善疾病所需的临床管理。此外,根据这些生物标志物为有反应的患者选择合适的治疗方案将降低治疗毒性和成本.使用下一代测序和蛋白质组学等各种先进技术鉴定的生物标志物,被归类为免疫生物标志物,组织特异性生物标志物和液体生物标志物。免疫生物标志物包括免疫途径的标志物,如CTLA4、PD-1/PD1-1,组织生物标志物包括组织特异性分子,如PSA抗原,液体生物标志物包括尿液中可检测的生物标志物,循环细胞等.这篇综述的目的是简要介绍最常见的泌尿生殖系统恶性肿瘤,包括膀胱,肾,和前列腺癌以及主要关注新型诊断生物标志物以及在泌尿生殖系统癌症治疗之前靶向它们的重要性。了解这些生物标志物及其在泌尿生殖系统癌症诊断中的潜力无助于如上所述的早期和准确诊断,但也可能导致个性化的方法来更好地诊断。个体的预后和特定的治疗方法。
    Genitourinary cancers comprise of a heterogenous group of cancers of which renal cell carcinoma, urothelial bladder carcinoma, and prostate adenocarcinoma are the most commonly encountered subtypes. A lot of research is ongoing using various strategies for exploration of novel biomarkers for genitourinary cancers. These biomarkers would not reduce the need for invasive diagnostic techniques but also could be used for early and accurate diagnosis to improve the clinical management required for the disease. Moreover, selecting the appropriate treatment regimen for the responsive patients based on these biomarkers would reduce the treatment toxicity as well as cost. Biomarkers identified using various advanced techniques like next generation sequencing and proteomics, which have been classified as immunological biomarkers, tissue-specific biomarkers and liquid biomarkers. Immunological biomarkers include markers of immunological pathways such as CTLA4, PD-1/PDl-1, tissue biomarkers include tissue specific molecules such as PSA antigen and liquid biomarkers include biomarkers detectable in urine, circulating cells etc. The purpose of this review is to provide a brief introduction to the most prevalent genitourinary malignancies, including bladder, kidney, and prostate cancers along with a major focus on the novel diagnostic biomarkers and the importance of targeting them prior to genitourinary cancers treatment. Understanding these biomarkers and their potential in diagnosis of genitourinary cancer would not help in early and accurate diagnosis as mentioned above but may also lead towards a personalized approach for better diagnosis, prognosis and specified treatment approach for an individual.
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  • 文章类型: Journal Article
    干扰素基因(STING)信号的环GMP-AMP合酶(cGAS)-刺激物通过诱导细胞因子在微生物和肿瘤免疫学中发挥重要的调节功能,主要是I型干扰素。最近,cGAS-STING轴的异常和紊乱信号与多种无菌性炎症性疾病密切相关,包括心力衰竭,心肌梗塞,心脏肥大,非酒精性脂肪性肝病,主动脉瘤和夹层,肥胖,等。这是因为大量的损伤相关分子模式(线粒体DNA,细胞外囊泡中的DNA)从代谢细胞器和组织的复发性损伤中释放,这是由路径感知。此外,cGAS-STING通路与细胞内基本稳态过程如细胞凋亡的串扰,自噬,调节细胞代谢.靶向脱轨的STING信号已经成为慢性炎性疾病所必需的。同时,过度的I型干扰素信号传导对心血管和代谢健康的影响仍然难以捉摸.在这次审查中,我们总结了cGAS-STING通路与心血管和代谢紊乱之间的密切联系。我们还讨论了该途径的一些潜在小分子抑制剂。这篇综述提供了见解,以激发人们对心血管和代谢组织和疾病中这种信号轴的兴趣并支持未来的研究。
    The cyclic GMP-AMP synthase (cGAS)-stimulator of interferon genes (STING) signaling exert essential regulatory function in microbial-and onco-immunology through the induction of cytokines, primarily type I interferons. Recently, the aberrant and deranged signaling of the cGAS-STING axis is closely implicated in multiple sterile inflammatory diseases, including heart failure, myocardial infarction, cardiac hypertrophy, nonalcoholic fatty liver diseases, aortic aneurysm and dissection, obesity, etc. This is because of the massive loads of damage-associated molecular patterns (mitochondrial DNA, DNA in extracellular vesicles) liberated from recurrent injury to metabolic cellular organelles and tissues, which are sensed by the pathway. Also, the cGAS-STING pathway crosstalk with essential intracellular homeostasis processes like apoptosis, autophagy, and regulate cellular metabolism. Targeting derailed STING signaling has become necessary for chronic inflammatory diseases. Meanwhile, excessive type I interferons signaling impact on cardiovascular and metabolic health remain entirely elusive. In this review, we summarize the intimate connection between the cGAS-STING pathway and cardiovascular and metabolic disorders. We also discuss some potential small molecule inhibitors for the pathway. This review provides insight to stimulate interest in and support future research into understanding this signaling axis in cardiovascular and metabolic tissues and diseases.
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  • 文章类型: Journal Article
    Lipoprotein lipase (LPL) is an enzyme involved in lipid metabolism and distribution of fatty acids hence its role in the initiation and development of dyslipidemia and adiposity. Single nucleotide polymorphisms (SNPs) across the LPL gene have been associated with dyslipidemia, however, the association with obesity has been limited towards specific populations. This study examined the association between LPL gene polymorphisms with plasma lipid levels and body mass index (BMI) in the Kuwaiti population. We examined a total of 486 adults (303 and 183 females and males respectively) with plasma lipid levels and BMI. DNA samples were genotyped for two LPL gene polymorphisms (rs1534649 and rs28645722) using TaqMan allelic discrimination. The relationship between the genotypes with both plasma lipid levels and BMI were assessed using linear regression using \"SNPassoc\" package from R statistical software. Using an additive genetic model, linear regression analysis showed the T-allele of rs1534649 to be associated with increased BMI in a dose-dependent trend β = 2.13 (95% CI 1.33-2.94); p = 1.7 × 10-7. In addition, a borderline significance was observed between the T-allele and low levels of high density lipoprotein-cholesterol β = -0.04 (95% CI -0.08, -0.006); p = 0.02. There were no associations between rs28645722 and plasma lipid levels (p > 0.05). However, a trend was observed between the A-allele and increased BMI β = 1.75 (95% CI 0.14-3.35); p = 0.03. Our study shows intron one polymorphism rs1534649 to increase the risk of obesity and dyslipidemia. Our findings warrant further investigation of the mechanism of LPL on the development of obesity along with the role of intron one and its impact on LPL gene activity.
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  • 文章类型: Journal Article
    需要开发第三代生物精炼厂,其将能量生产与从可再生原料生产更高价值的化学品相结合。这里,酿酒酵母的健壮和耐受胁迫的工业菌株将是合适的生产生物。然而,他们的基因操纵具有挑战性,因为它们通常是二倍体或多倍体。因此,有必要开发更有效的基因工程工具。我们应用CRISPR-Cas9系统对不同的工业菌株进行基因组编辑,并在几个不相关的菌株中同时破坏了一个基因的两个等位基因,效率在65%至78%之间。我们还实现了报告基因的同时破坏和敲入,并通过在单个转化事件中设计产乳酸菌株来证明该方法的适用性,异源基因的插入和两个内源基因的破坏同时发生。我们的研究为工业酵母细胞工厂的有效工程提供了基础。
    There is a demand to develop 3rd generation biorefineries that integrate energy production with the production of higher value chemicals from renewable feedstocks. Here, robust and stress-tolerant industrial strains of Saccharomyces cerevisiae will be suitable production organisms. However, their genetic manipulation is challenging, as they are usually diploid or polyploid. Therefore, there is a need to develop more efficient genetic engineering tools. We applied a CRISPR-Cas9 system for genome editing of different industrial strains, and show simultaneous disruption of two alleles of a gene in several unrelated strains with the efficiency ranging between 65% and 78%. We also achieved simultaneous disruption and knock-in of a reporter gene, and demonstrate the applicability of the method by designing lactic acid-producing strains in a single transformation event, where insertion of a heterologous gene and disruption of two endogenous genes occurred simultaneously. Our study provides a foundation for efficient engineering of industrial yeast cell factories.
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  • 文章类型: Journal Article
    叶酸缺乏是几种发育障碍的环境危险因素。从头突变(DNM)在各种发育障碍中也起重要的病因学作用。然而,目前尚不清楚叶酸相关基因(FRGs)中的DNM是否与发育障碍有关.我们从叶酸代谢途径和比较毒性基因组学数据库中获得了1,821个FRGs的列表,以及来自Gene4Denovo数据库的15,404例和3,391例对照的DNM数据。我们使用TADA-Denovo模型来优先考虑候选疾病相关的FRGs,这些基因的特征是基因不耐受,功能网络,和表达模式。与对照组相比,在发育障碍患者(1.54≤比值比≤3.39,Padj≤0.0075)中,FRG在可能的破坏性DNM(ldDNM)中明显富集。此外,在数据集中包含的五种发育障碍中,具有ldDNM而不是具有可能的非破坏性DNM(lndDNM)的FRG显着重叠。TADA-Denovo模型优先考虑了96个候选疾病相关FRG,对遗传变异不耐受。它们的功能网络主要涉及与染色质修饰相关的途径,器官发育,和信号转导途径。DNMT3A,KMT2B,KMT2C,YY1从蛋白质-蛋白质相互作用网络中作为枢纽FRG出现。这些候选疾病相关FRGs在胚胎发育过程中优先在兴奋性神经元中表达,在大脑皮层,小脑,纹状体,和胎儿发育期间的杏仁核。总的来说,这些发现表明FRGs中的DNM与发育障碍的风险相关。对这些DNM的进一步研究可能有助于发现发育障碍生物标志物和治疗靶标。启用详细的,个性化,和精确的叶酸治疗计划。
    Folate deficiency is an environmental risk factor for several developmental disorders. De novo mutations (DNMs) also play important etiological roles in various developmental disorders. However, it remains unclear whether DNMs in folate-related genes (FRGs) contribute to developmental disorders. We obtained a list of 1,821 FRGs from folate metabolism pathways and the Comparative Toxicogenomics Database, along with data concerning DNMs in 15,404 cases and 3,391 controls from the Gene4Denovo database. We used a TADA-Denovo model to prioritize candidate disease-associated FRGs, and characterized these genes in terms of genic intolerance, functional networks, and expression patterns. Compared with the controls, FRGs were significantly enriched in likely damaging DNMs (ldDNMs) in patients with developmental disorders (1.54 ≤ odds ratio ≤ 3.39, P adj ≤ 0.0075). Furthermore, FRGs with ldDNMs rather than with likely non-damaging DNMs (lndDNMs) overlapped significantly among the five developmental disorders included in the datasets. The TADA-Denovo model prioritized 96 candidate disease-associated FRGs, which were intolerant to genetic variants. Their functional networks mainly involved pathways associated with chromatin modification, organ development, and signal transduction pathways. DNMT3A, KMT2B, KMT2C, and YY1 emerged as hub FRGs from the protein-protein interaction network. These candidate disease-associated FRGs are preferentially expressed in the excitatory neurones during embryonic development, and in the cortex, cerebellum, striatum, and amygdala during foetal development. Overall, these findings show that DNMs in FRGs are associated with the risk of developmental disorders. Further research on these DNMs may facilitate the discovery of developmental disorder biomarkers and therapeutic targets, enabling detailed, personalized, and precise folate treatment plan.
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