Clinical significance

临床意义
  • 文章类型: Journal Article
    胶质瘤,一种普遍而致命的脑瘤,以显著的细胞异质性和代谢改变为标志。然而,高级细胞的起源和代谢综合景观(多形性胶质母细胞瘤,WHOIV级)和低级别(寡星形细胞瘤,WHOII级)神经胶质瘤仍然难以捉摸。
    在这项研究中,我们对这些胶质瘤级别进行了单细胞转录组测序,以阐明它们的细胞和代谢差异.在确定细胞类型之后,我们比较了高级别和低级别胶质瘤的代谢途径活性和基因表达。
    值得注意的是,星形胶质细胞和少突胶质细胞祖细胞(OPCs)在代谢途径和基因表达方面表现出最实质性的差异,表明了它们不同的起源。综合分析确定了所有细胞类型中变化最大的代谢途径(MCP)和基因,针对TCGA和CGGA数据集进一步验证了其临床相关性。
    至关重要的是,发现代谢酶磷酸二酯酶8B(PDE8B)在高级别神经胶质瘤的星形胶质细胞和OPCs中仅表达并逐渐下调.这种降低的表达将PDE8B鉴定为IDH突变型神经胶质瘤中的代谢相关癌基因,标记其作为神经胶质瘤分级和预后的保护性标记和作为神经胶质瘤进展的促进者的双重作用。
    UNASSIGNED: Glioma, a prevalent and deadly brain tumor, is marked by significant cellular heterogeneity and metabolic alterations. However, the comprehensive cell-of-origin and metabolic landscape in high-grade (Glioblastoma Multiforme, WHO grade IV) and low-grade (Oligoastrocytoma, WHO grade II) gliomas remains elusive.
    UNASSIGNED: In this study, we undertook single-cell transcriptome sequencing of these glioma grades to elucidate their cellular and metabolic distinctions. Following the identification of cell types, we compared metabolic pathway activities and gene expressions between high-grade and low-grade gliomas.
    UNASSIGNED: Notably, astrocytes and oligodendrocyte progenitor cells (OPCs) exhibited the most substantial differences in both metabolic pathways and gene expression, indicative of their distinct origins. The comprehensive analysis identified the most altered metabolic pathways (MCPs) and genes across all cell types, which were further validated against TCGA and CGGA datasets for clinical relevance.
    UNASSIGNED: Crucially, the metabolic enzyme phosphodiesterase 8B (PDE8B) was found to be exclusively expressed and progressively downregulated in astrocytes and OPCs in higher-grade gliomas. This decreased expression identifies PDE8B as a metabolism-related oncogene in IDH-mutant glioma, marking its dual role as both a protective marker for glioma grading and prognosis and as a facilitator in glioma progression.
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  • 文章类型: Journal Article
    下腰痛(LBP)和颈部疼痛是导致残疾的主要原因。富含细胞和血小板的血浆(PRP)产品是潜在的治疗方法,其临床试验和评价可提高其疗效。尽管如此,他们经常忽视报告的改善的临床意义.在这次系统审查中,疼痛的有效改善,残疾,生活质量(QoL),和射线照相图像进行全面描述并对其临床意义进行评分。2023年7月进行了电子数据库文献检索,以在人体内评估细胞或PRP产品以减轻椎间盘源性疼痛。论文进行了定量疼痛筛查,残疾,QoL,射线照相改进,和安全结果。通过MINORS和Cochrane偏差源工具评估偏差风险。获得了报告的结果,calculated,并评估符合最小临床重要差异(MCID)标准。从7623篇筛选论文中,共有80篇文章符合资格标准,提出68项具体研究。这些提供了至少1974名接受治疗的患者。总的来说,细胞/PRP注射可以减轻疼痛和残疾,在长达2年的随访中导致疼痛和残疾的MCID,与接受脊柱融合术的患者相似。纳入的试验主要呈现高水平的偏见,涉及异质研究设计,只有最少数量的随机对照试验。尽管如此,对于总体安全性良好的细胞和PRP治疗的队列,观察到明显的临床显著影响.这些结果突出了强大的治疗潜力,但也强调了未来成本效益评估以确定细胞/PRP治疗的益处的必要性。
    Low back pain (LBP) and neck pain predominate as the primary causes of disability. Cell- and platelet-rich plasma (PRP) products are potential therapies with clinical trials and reviews promoting their efficacy. Nonetheless, they frequently disregard the clinical significance of reported improvements. In this systematic review, the effectuated improvements in pain, disability, quality of life (QoL), and radiographic images are comprehensively described and scored on their clinical significance. An electronic database literature search was conducted on July 2023 for in-human assessment of cell or PRP products to alleviate discogenic pain. Papers were screened on quantitative pain, disability, QoL, radiographic improvements, and safety outcomes. Risk of bias was assessed through MINORS and Cochrane Source of Bias tools. Reported outcomes were obtained, calculated, and assessed to meet minimal clinically important difference (MCID) standards. From 7623 screened papers, a total of 80 articles met the eligibility criteria, presenting 68 specific studies. These presented at least 1974 treated patients. Overall, cell/PRP injections could alleviate pain and disability, resulting in MCID for pain and disability in up to a 2-year follow-up, similar to those observed in patients undergoing spinal fusion. Included trials predominantly presented high levels of bias, involved heterogeneous study designs, and only a minimal number of randomized controlled trials. Nonetheless, a clear clinically significant impact was observed for cell- and PRP-treated cohorts with overall good safety profiles. These results highlight a strong therapeutic potential but also underline the need for future cost-effectiveness assessments to determine the benefits of cell/PRP treatments.
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  • 文章类型: Journal Article
    产生碳青霉烯酶(RCP)的冗余细菌,携带双重或多重碳青霉烯酶,代表了一种新的和令人担忧的现象。这项研究的目的是对RCP菌株的流行病学和遗传机制进行全面分析,以支持有针对性的监测和控制措施。使用来自277篇文章的监测数据进行回顾性分析。进行统计分析以确定和评估物种流行率,碳青霉烯酶的比例,抗生素敏感性概况,样本信息,和患者结果。利用完整的质粒测序数据来研究菌株可能从获得冗余的碳青霉烯酶中获得的潜在的抗微生物耐药性或毒力优势。RCP菌在全球广泛分布,他们的患病率随着时间的推移而增加。几个国家,包括中国,印度,伊朗,土耳其,还有韩国,已经报道了100多个RCP菌株。最常报道的RCP菌种是肺炎克雷伯菌和鲍曼不动杆菌,表现出不同比例的碳青霉烯酶组合。某些物种-碳青霉烯酶组合,如肺炎克雷伯菌携带新德里金属-β-内酰胺酶(NDM)+氧嘧啶酶(OXA)(56.76%)和肺炎克雷伯菌碳青霉烯酶(KPC)+维罗纳整合子编码的金属-β-内酰胺酶(VIM)(50.00%),与高死亡率有关。在从血液和呼吸系统分离的RCP菌株的患者中,死亡率分别为58.70%和69.23%,分别。对来自RCP菌株的质粒的分析表明,它们可能获得其他抗生素抗性表型和毒力因子。携带冗余碳青霉烯酶的耐碳青霉烯类细菌构成了重大的全球健康威胁。这项研究为这些细菌的流行病学和遗传机制提供了有价值的见解,支持制定有效的控制和预防战略,以减轻其传播。重要意义本研究检查了来自277篇文章的1,780种具有双重或多种碳青霉烯酶的细菌的全球分布模式,并评估了其临床影响。多种碳青霉烯酶的存在增加了对其他类型抗生素和更多毒力因子的共同抗性的机会,进一步使感染的临床管理复杂化。
    Redundant carbapenemase-producing (RCP) bacteria, which carry double or multiple carbapenemases, represent a new and concerning phenomenon. The objective of this study is to conduct a comprehensive analysis of the epidemiology and genetic mechanisms of RCP strains to support targeted surveillance and control measures. A retrospective analysis was conducted using surveillance data from 277 articles. Statistical analysis was performed to determine and evaluate species prevalence, proportions of carbapenemases, antibiotic susceptibility profiles, sample information, and patient outcomes. Complete plasmid sequencing data were utilized to investigate potential antimicrobial resistance or virulence advantages that strains may gain from acquiring redundant carbapenemases. RCP bacteria are widely distributed globally, and their prevalence is increasing over time. Several countries, including China, India, Iran, Turkey, and South Korea, have reported more than 100 RCP strains. The most commonly reported RCP species are Klebsiella pneumoniae and Acinetobacter baumannii, which exhibit varying proportions of carbapenemase combinations. Certain species-carbapenemase combinations, such as K. pneumoniae carrying New Delhi metallo-β-lactamase (NDM) + oxacillinase (OXA) (56.76%) and K. pneumoniae carbapenemase (KPC) + Verona integron-encoded metallo-β-lactamase (VIM) (50.00%) carbapenemases, are associated with high mortality rates. In patients with RCP strains isolated from the bloodstream and respiratory system, the mortality rates are 58.70% and 69.23%, respectively. Analysis of plasmids from RCP strains suggests that they may acquire additional antibiotic resistance phenotypes and virulence factors. Carbapenem-resistant bacteria carrying redundant carbapenemases pose a significant global health threat. This study provides valuable insights into the epidemiology and genetic mechanisms of these bacteria, supporting the development of effective control and prevention strategies to mitigate their transmission.IMPORTANCEThis study examined the global distribution patterns of 1,780 bacteria with double or multiple carbapenemases from 277 articles and assessed their clinical impact. The presence of multiple carbapenemases increases the chances of co-resistance to other classes of antibiotics and more virulence factors, further complicating the clinical management of infections.
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  • 文章类型: Journal Article
    临床试验分析结果的统计显著性通过数学计算和基于零假设显著性检验的概率来确定。然而,统计学意义并不总是与有意义的临床效果一致;因此,将临床相关性分配给统计学意义是不合理的.结合有临床意义的差异的统计结果是呈现统计显著性的更好方法。因此,最小临床重要差异(MCID),这需要从研究设计的早期阶段整合最小的临床相关变化,已经介绍了。作为上一轮关于P值的统计回合文章的后续,置信区间,和效果大小,在这篇文章中,我们介绍了MCID和各种效应大小的实例,并讨论了术语统计意义和临床相关性,包括有关其使用的注意事项。
    The statistical significance of a clinical trial analysis result is determined by a mathematical calculation and probability based on null hypothesis significance testing. However, statistical significance does not always align with meaningful clinical effects; thus, assigning clinical relevance to statistical significance is unreasonable. A statistical result incorporating a clinically meaningful difference is a better approach to present statistical significance. Thus, the minimal clinically important difference (MCID), which requires integrating minimum clinically relevant changes from the early stages of research design, has been introduced. As a follow-up to the previous statistical round article on P values, confidence intervals, and effect sizes, in this article, we present hands-on examples of MCID and various effect sizes and discuss the terms statistical significance and clinical relevance, including cautions regarding their use.
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  • 文章类型: Journal Article
    背景:神经特异性烯醇化酶(NSE),多功能蛋白质,存在于身体的各种组织中,在许多疾病过程中起着重要作用,如感染,炎症,肿瘤,损伤,和豁免权。近年来,NSE在呼吸系统疾病中的应用日益广泛,成为研究热点。
    目的:本研究旨在探讨NSE与儿童肺炎的关系。为肺炎的诊断和评估提供帮助。
    方法:使用前瞻性研究和病例对照方法,选取2020年9月至2022年4月在潍坊市人民医院住院的129例肺炎患儿作为病例组。其中肺炎支原体肺炎(MP+)67例,62例非肺炎支原体肺炎(MP-),和21例重症肺炎。同时,选取136例行门诊健康体检的患儿作为对照组。NSE的水平,ESR,分别测定病例组CRP和对照组NSE。
    结果:MP+组的NSE水平为17.86(14.29-22.54)ng/mL,而MP-组为17.89(14.10-21.66)ng/mL,均高于对照组的NSE水平13.26(12.18,14.44)ng/mL(H=46.92,P=0.000)。MP+组和MP-组NSE水平差异无统计学意义(P>0.05)。重症肺炎组NSE水平为27.38(13.95-34.06)ng/mL,高于轻度肺炎组,17.68(14.27-21.04)ng/mL,(P=0.024)。诊断肺炎的AUC值为NSE0.714、CRP0.539和ESR0.535,其中NSE具有最高的诊断价值。
    结论:血清NSE可作为小儿肺炎的炎性指标,对诊断具有重要的临床指导意义,条件评估,小儿肺炎的预后。
    BACKGROUND: Neurospecific Enolase (NSE), a multifunctional protein, is present in various tissues of the body and plays an important role in many disease processes, such as infection, inflammation, tumours, injury, and immunity. In recent years, the application of NSE in respiratory diseases has become increasingly widespread and a research hotspot.
    OBJECTIVE: This study aims to explore the relationship between NSE and childhood pneumonia, providing assistance for the diagnosis and assessment of pneumonia.
    METHODS: Using prospective research and case-control methods, We selected 129 children with pneumonia hospitalised in Weifang People\'s Hospital from September 2020 to April 2022 as the case group. Among them were 67 cases of Mycoplasma pneumoniae pneumonia (MP+), 62 cases of non-Mycoplasma pneumoniae pneumonia (MP -), and 21 cases of severe pneumonia. At the same time, 136 children who underwent outpatient health examinations were selected as the control group. The levels of NSE, ESR, CRP in cases group and NSE in control group were measured separately.
    RESULTS: The NSE levels in the MP + group were 17.86 (14.29-22.54) ng/mL, while those in the MP- group were 17.89 (14.10-21.66) ng/mL, both of which were higher than the control group\'s NSE levels of 13.26(12.18,14.44) ng/mL (H = 46.92, P = 0.000). There was no statistically significant difference in NSE levels between the MP + and MP - groups (P > 0.05). The NSE level in the severe pneumonia group was 27.38 (13.95-34.06) ng/mL, higher than that in the mild pneumonia group, which was 17.68 (14.27-21.04) ng/mL, (P = 0.024). The AUC values for diagnosing pneumonia are NSE0.714, CRP0.539, and ESR0.535, with NSE having the highest diagnostic value.
    CONCLUSIONS: Serum NSE can serve as an inflammatory indicator for paediatric pneumonia, which has important clinical guidance significance for the diagnosis, condition evaluation, and prognosis of paediatric pneumonia.
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  • 文章类型: Journal Article
    背景和目的:面部血管解剖在生理背景和手术干预中起着关键作用。虽然有关于面部动脉和静脉个体过程的数据,到目前为止,脉管系统的空间关系研究得不好。这项研究的目的是评估面部动脉的过程,静脉和分支相对于另一个。材料和方法:在总共90个减半的内脏中,面部血管注射有色乳胶。进行了解剖,研究了面部血管的关系,测量下颌骨下缘的距离。此外,包括唇血管和角状血管在内的分支进行了评估。结果:在下颌骨的底部,在所有情况下,面动脉位于面静脉前方,平均距离为6.2mm(范围为0-15mm),三例两条船相邻。在所有情况下都存在有角的静脉,而角动脉仅存在于34.4%的病例中。结论:面动脉和静脉的主干产生一个相当独立的过程,面动脉总是位于静脉的前面,而他们的树枝,尤其是唇血管,表现出更紧密的关系。
    Background and Objectives: Facial vascular anatomy plays a pivotal role in both physiological context and in surgical intervention. While data exist on the individual course of the facial artery and vein, to date, the spatial relationship of the vasculature has been ill studied. The aim of this study was to assess the course of facial arteries, veins and branches one relative to another. Materials and Methods: In a total of 90 halved viscerocrania, the facial vessels were injected with colored latex. Dissection was carried out, the relation of the facial vessels was studied, and the distance at the lower margin of the mandible was measured. Furthermore, branches including the labial and angular vessels were assessed. Results: At the base of the mandible, the facial artery was located anterior to the facial vein in all cases at a mean distance of 6.2 mm (range 0-15 mm), with three cases of both vessels adjacent. An angular vein was present in all cases, while an angular artery was only present in 34.4% of cases. Conclusions: The main trunk of the facial artery and vein yields a rather independent course, with the facial artery always located anterior to the vein, while their branches, especially the labial vessels, demonstrate a closer relationship.
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  • 文章类型: Journal Article
    食管鳞状细胞癌(ESCC)患者预后较差,有效治疗靶点有限。本研究旨在阐明鸟嘌呤核苷酸结合蛋白样3样(GNL3L)蛋白在ESCC中表达的临床意义及其在恶性进展中的作用。
    通过使用癌症基因组图谱(TCGA)数据库,通过生物信息学分析对ESCC中GNL3L的表达和相关的促癌途径进行了研究。随后验证GNL3L蛋白在ESCC中的表达,再加上临床数据,通过免疫组织化学进行,然后进行全面的预后分析。我们进一步研究了促进ESCC进展的潜在信号通路,采用生物信息学分析和免疫组织化学(IHC)实验的结合。
    生物信息学分析揭示了GNL3L表达的显着升高,特别是在胃肠道肿瘤和ESCC中。免疫组织化学证实在ESCC组织中GNL3L表达升高。回归分析建立了GNL3L表达升高与晚期肿瘤淋巴结转移(TNM)分期之间的相关性。高表达与ESCC患者预后不良相关。我们的生物信息学和IHC分析的综合方法表明信号转导和转录激活因子3(STAT3)信号通路在ESCC进展中的潜在作用。
    高GNL3L表达显著促进ESCC的恶性进展。这项研究进一步阐明了驱动ESCC进展的机制,并为更有效的诊断和治疗策略提供了可能的见解。
    UNASSIGNED: Esophageal squamous cell carcinoma (ESCC) patients carries a poor prognosis, with limited effective therapeutic targets. This study aimed to clarify the clinical significance of guanine nucleotide-binding protein like 3-like (GNL3L) protein expression in ESCC and its role in malignant progression.
    UNASSIGNED: GNL3L expression and associated cancer-promoting pathways in ESCC were interrogated via bioinformatics analysis through use of The Cancer Genome Atlas (TCGA) database. Subsequent verification of GNL3L protein expression in ESCC, coupled with clinical data, was conducted through immunohistochemistry and followed by a comprehensive prognostic analysis. We further investigated potential signaling pathways facilitating ESCC progression, employing a combination of bioinformatics analysis and immunohistochemical (IHC) experiments.
    UNASSIGNED: Bioinformatics analysis unveiled a significant elevation in GNL3L expression, particularly in gastrointestinal tumors and ESCC. Immunohistochemistry confirmed elevated GNL3L expression in ESCC tissues. Regression analysis established a correlation between elevated GNL3L expression and advanced tumor node metastasis (TNM) stage, with high expression associated with poor prognosis in patients with ESCC. Our integrated approach of bioinformatics and IHC analysis indicated a potential role of the signal transducers and activators of transcription 3 (STAT3) signaling pathway in ESCC progression.
    UNASSIGNED: High GNL3L expression significantly contributes to the malignant progression of ESCC. This study further elucidates the mechanisms driving ESCC progression and offers possible insights for more effective diagnosis and treatment strategies.
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  • 文章类型: Journal Article
    肺癌是世界上最常见的癌症,因其发病率和复发率高。遗传不稳定性是导致其发生的主要因素之一,发展和预后不良。着色性干皮病C组(XPC)表达的降低显着增强了肺癌细胞的干细胞特性,并增加了其增殖和迁移。此外,XPC低表达的肺癌患者预后不良.本研究的目的是分析XPC和IFN-γ对非小细胞肺癌(NSCLC)患者临床预后的影响。从总共140例NSCLC患者中收集肺腺癌标本。此外,从这140名患者中,还收集了48个癌旁组织标本,后来被用来构建组织微阵列。用免疫组织化学方法检测XPC和IFN-γ在癌组织和副肿瘤组织中的表达。通过电话随访确定患者的预后和总生存期。结果NSCLC中XPC和IFN-γ的表达呈正相关。此外,两种标志物的高表达与NSCLC患者的良好预后相关.上述发现提示XPC和IFN-γ的表达在临床实践中具有预后价值,并有望成为临床应用的标志物。
    Lung cancer is the most common cancer in the world due to its high incidence and recurrence. Genetic instability is one of the main factors leading to its occurrence, development and poor prognosis. Decreased xeroderma pigmentosum group C (XPC) expression notably enhances the stem cell properties of lung cancer cells and increases their proliferation and migration. Additionally, patients with lung cancer and low XPC expression had a poor prognosis. The purpose of the present study was to analyze the effect of XPC and IFN-γ on the clinical prognosis of patients with non-small cell lung cancer (NSCLC). Lung adenocarcinoma specimens were collected from a total of 140 patients with NSCLC. Additionally, from these 140 patients, 48 paracarcinoma tissue specimens were also collected, which were later used to construct tissue microarrays. The expression of XPC and IFN-γ in cancer tissues and in paraneoplastic tissues was detected using immunohistochemistry. The prognosis and overall survival of patients were determined through telephone follow-up. The results showed a positive correlation between expression of XPC and IFN-γ in NSCLC. Additionally, high expression of both markers was associated with a favorable prognosis in patients with NSCLC. The aforementioned findings suggest that the expression of XPC and IFN-γ has prognostic value in clinical practice and is expected to become a marker for clinical application.
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  • 文章类型: Journal Article
    产生志贺毒素的大肠杆菌(STEC)感染可引起从无症状脱落到轻度和血性腹泻(BD)甚至危及生命的溶血性尿毒综合征(HUS)的广泛症状。作为肠杆菌科(SPATE)家族的丝氨酸蛋白酶自转运蛋白的成员,EspP具有降解人凝血因子V的能力,导致粘膜出血,并且还在细菌粘附到宿主细胞表面中起作用。这里,我们调查了来自轻度腹泻患者的临床STEC分离株中espP的患病率和遗传多样性,BD,和HUS,以及来自无症状的个体,并评估了espP及其亚型与疾病严重程度的相关性。我们发现239个临床STEC菌株中有130个(54.4%)为espP阳性,并且espP的存在与BD显着相关,HUS,和O157:H7血清型。鉴定出18种独特的espP基因型(GT),并将其分为4种espP亚型。即,特别是(119,91.5%),特别是Pγ(5,3.8%),特别是Pδ(4,3.1%),和特别是(2,1.5%)。esppα分布广泛,特别是在BD和HUS患者的菌株中,与O157:H7血清型相关。血清群O26、O145、O121和O103菌株仅携带esppα。在esppα中鉴定出10个GTs,espPα/GT2与严重疾病显著相关,即,BD和HUS。此外,espP与eae基因的存在密切相关,espPα和stx2/stx2a+stx2c的共存与HUS状态密切相关。总而言之,我们的数据表明,在瑞典的临床STEC菌株中,espP基因的高患病率和遗传多样性,并揭示了espP的存在之间的关联,espP亚型,和疾病的严重程度。espP,特别是esppα亚型,容易存在于毒性更强的STEC菌株中,例如,“前六种”血清型菌株。
    Shiga toxin-producing Escherichia coli (STEC) infection can cause a broad spectrum of symptoms spanning from asymptomatic shedding to mild and bloody diarrhea (BD) and even life-threatening hemolytic-uremic syndrome (HUS). As a member of the serine protease autotransporters of Enterobacteriaceae (SPATE) family, EspP has the ability to degrade human coagulation factor V, leading to mucosal bleeding, and also plays a role in bacteria adhesion to the surface of host cells. Here, we investigated the prevalence and genetic diversity of espP among clinical STEC isolates from patients with mild diarrhea, BD, and HUS, as well as from asymptomatic individuals, and assessed the presence of espP and its subtypes in correlation to disease severity. We found that 130 out of 239 (54.4%) clinical STEC strains were espP positive, and the presence of espP was significantly associated with BD, HUS, and O157:H7 serotype. Eighteen unique espP genotypes (GTs) were identified and categorized into four espP subtypes, i.e., espPα (119, 91.5%), espPγ (5, 3.8%), espPδ (4, 3.1%), and espPε (2, 1.5%). espPα was widely distributed, especially in strains from patients with BD and HUS, and correlated with serotype O157:H7. Serogroup O26, O145, O121, and O103 strains carried espPα only. Ten GTs were identified in espPα, and espPα/GT2 was significantly associated with severe disease, i.e., BD and HUS. Additionally, espP was strongly linked to the presence of eae gene, and the coexistence of espPα and stx2/stx2a + stx2c was closely related to HUS status. To sum up, our data demonstrated a high prevalence and genetic diversity of the espP gene in clinical STEC strains in Sweden and revealed an association between the presence of espP, espP subtypes, and disease severity. espP, particularly the espPα subtype, was prone to be present in more virulent STEC strains, e.g., \"top-six\" serotypes strains.
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  • 文章类型: Journal Article
    结构变异(SV)是大的(>50bp)基因组重排,包括缺失,重复,插入,倒置,和易位。研究SVs很重要,因为它们在调节基因表达中起着积极和关键的作用。确定疾病易感性,并确定不同祖先个体之间的群体特异性差异。然而,使用全基因组测序(WGS)在印度人口中发现的SV受到限制。在这项研究中,使用具有平均42X覆盖深度的短读取WGS,我们从529名在印度人群队列中登记的个体中鉴定并表征了36,210个SV.这些SV包括24,574个缺失,2913次重复,8710插入,13个倒立。1.26%(36,210个中的456个)的鉴定的SV可以潜在地影响基因的编码区。此外,这些SVs中的56个对映射基因的功能丧失变化高度不耐受,影响ADAMTS17,CCDC40和RHCE的五种SV在我们的研究个体中很常见。七个罕见的SV显着影响已知与各种临床表型相关的基因的剂量敏感性。我们研究中的大多数SV是罕见的和杂合的。在代表性不足的印度人口中,这种精细的SV发现提供了宝贵的见解,超出了以欧洲为中心的人类基因研究。
    Structural variations (SV) are large (>50 base pairs) genomic rearrangements comprising deletions, duplications, insertions, inversions, and translocations. Studying SVs is important because they play active and critical roles in regulating gene expression, determining disease predispositions, and identifying population-specific differences among individuals of diverse ancestries. However, SV discoveries in the Indian population using whole-genome sequencing (WGS) have been limited. In this study, using short-read WGS having an average 42X depth of coverage, we identify and characterize 36,210 SVs from 529 individuals enrolled in population-based cohorts in India. These SVs include 24,574 deletions, 2,913 duplications, 8,710 insertions, and 13 inversions; 1.26% (456 out of 36,210) of the identified SVs can potentially impact the coding regions of genes. Furthermore, 56 of these SVs are highly intolerant to loss-of-function changes to the mapped genes, and five SVs impacting ADAMTS17, CCDC40, and RHCE are common in our study individuals. Seven rare SVs significantly impact dosage sensitivity of genes known to be associated with various clinical phenotypes. Most of the SVs in our study are rare and heterozygous. This fine-scale SV discovery in the underrepresented Indian population provides valuable insights that extend beyond Eurocentric human genetic studies.
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