Sanger sequencing

Sanger 测序
  • 文章类型: Journal Article
    全基因组序列显示HLA-G*01:19仅在外显子2的位置99处不同于HLA-G*01:04:01:01。
    Full genomic sequence shows HLA-G*01:19 differs from HLA-G*01:04:01:01 only at position 99 in exon 2.
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  • 文章类型: Journal Article
    青霉属在全球范围内分布广泛,在包括农业在内的行业中具有重要的经济价值。工业,和医学。尤其是在农业方面,青霉物种显著影响植物,造成疾病和污染,对作物产量和质量产生不利影响。及时检测青霉属物种对于控制疾病和防止霉菌毒素进入食物链至关重要。为了解决这个问题,我们实施了一种新的物种鉴定方法,称为整个GEnome分析(AGE)。这里,我们最初应用生物信息学分析从七个具有重大经济影响的青霉物种的全基因组中构建特定的靶序列库:P.citrinum,草酸磷,P.polonicum,P.paneum,P.rubens,还有P.roqueforti.我们使用筛选的靶标结合Sanger测序和CRISPR-Cas12a技术成功鉴定了7种青霉菌。值得注意的是,基于CRISPR-Cas12a技术,AGE可以在30分钟内以低至0.01ng/µL的浓度快速准确地鉴定基因组DNA样品。该方法具有高灵敏度和便携性,使其适合现场检测。这种强大的分子方法提供了精确的真菌物种鉴定,对农业控制具有广泛的意义。工业生产,临床诊断,和食品安全。
    The Penicillium genus exhibits a broad global distribution and holds substantial economic value in sectors including agriculture, industry, and medicine. Particularly in agriculture, Penicillium species significantly impact plants, causing diseases and contamination that adversely affect crop yields and quality. Timely detection of Penicillium species is crucial for controlling disease and preventing mycotoxins from entering the food chain. To tackle this issue, we implement a novel species identification approach called Analysis of whole GEnome (AGE). Here, we initially applied bioinformatics analysis to construct specific target sequence libraries from the whole genomes of seven Penicillium species with significant economic impact: P. canescens, P. citrinum, P. oxalicum, P. polonicum, P. paneum, P. rubens, and P. roqueforti. We successfully identified seven Penicillium species using the target we screened combined with Sanger sequencing and CRISPR-Cas12a technologies. Notably, based on CRISPR-Cas12a technology, AGE can achieve rapid and accurate identification of genomic DNA samples at a concentration as low as 0.01 ng/µL within 30 min. This method features high sensitivity and portability, making it suitable for on-site detection. This robust molecular approach provides precise fungal species identification with broad implications for agricultural control, industrial production, clinical diagnostics, and food safety.
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  • 文章类型: Journal Article
    背景:遗传性神经肌肉(NMD)和神经退行性疾病(NDD)属于干扰神经系统不同成分的两个不同类别,导致各种不同的症状和临床表现。NMD和NDD都是一组异质性的遗传条件。SGCA和SIL1基因的遗传变异与导致四肢束腰肌营养不良(LGMD)有关,一种神经肌肉疾病,和Marinesco-Sjögren综合征(MSS),这是一种神经退行性疾病。
    方法:在本研究中,我们调查了4例LGMD患者和5例具有MSS特征的患者.收集详细的临床和家族史后,必要的实验室调查,包括评估骨骼肌标记酶血清肌酸激酶(CK),神经传导研究(NCS),肌电图(EMG),超声心动图(Echo),磁共振成像(MRI-脑),进行CT脑和X线检查。采用全外显子组然后进行Sanger测序来搜索致病变体。
    结果:LGMD患者的体格检查显示肌肉张力差,并且难以从地板上伸直。临床病史显示爬楼梯时经常跌倒和剧烈运动。他们从小就开始走路。实验室检查证实CK水平升高以及NCS和EMG异常。MSS患者表现出异常的门和抽搐运动,不正常的言语,斜视伴白内障。MRI脑显示一些CK水平升高的MSS患者发生脑萎缩。整个外显子组测序揭示了一个无义变体[c。C574T,p.(Arg192*)]在SGCA基因和移码中[c.936dupG,p.(Leu313AlaFs*39)]在LGMD和MSS患者的SIL1基因中,分别。
    结论:我们的研究强调了整合临床和遗传分析对遗传性NMD和NDD疾病的精确诊断和定制管理策略的重要性。据我们所知,这是第一项研究记录了少有罕见临床特征的次大陆人群中SGCA和SIL1复发变异.复发突变扩大了全球对突变的地理和种族分布的理解,并提供了有价值的流行病学数据。这项研究将促进遗传咨询家庭经历类似的临床特征,在巴基斯坦人口和其他地区。
    BACKGROUND: Inherited neuromuscular (NMD) and neurodegenerative diseases (NDD) belong to two distinct categories that disturb different components of the nervous system, leading to a variety of different symptoms and clinical manifestations. Both NMD and NDD are a heterogeneous group of genetic conditions. Genetic variations in the SGCA and SIL1 genes have been implicated in causing Limb Girdle Muscular Dystrophy (LGMD), a type of neuromuscular disorder, and Marinesco-Sjögren Syndrome (MSS) which is a neurodegenerative disorder.
    METHODS: In the present study, we have investigated four patients presenting LGMD and five patients with MSS features. After collecting detailed clinical and family history, necessary laboratory investigations, including estimation of a skeletal muscle marker enzyme serum creatine kinase (CK), nerve conduction study (NCS), electromyography (EMG), echocardiography (Echo), Magnetic resonance imaging (MRI -brain), CT-brain and X-rays were performed. Whole exome followed by Sanger sequencing was employed to search for the disease-causing variants.
    RESULTS: Physical examination in LGMD patients revealed poor muscle tone and facing difficulty in straightening up from the floor. Clinical history revealed frequent falls and strenuousness in climbing stairs. They started toe-walking in early childhood. Laboratory investigations confirmed elevated CK levels and abnormal NCS and EMG. The MSS patients showed abnormalities in gate and jerking movement, abnormal speech, and strabismus with cataract. MRI-brain showed cerebral atrophy in some MSS patients with elevated CK levels. Whole exome sequencing revealed a nonsense variant [c.C574T, p.(Arg192*)] in the SGCA gene and a frameshift [c.936dupG, p.(Leu313AlaFs*39)] in the SIL1 gene in LGMD and MSS patients, respectively.
    CONCLUSIONS: Our study emphasizes the significance of integrating clinical and genetic analyses for precise diagnosis and tailored management strategies in inherited NMD and NDD disorders. To the best of our knowledge, this is the first study documenting SGCA and SIL1 recurrent variants in subcontinent populations with few rare clinical features. The recurrent mutations expanding the global understanding of the mutation\'s geographic and ethnic distribution and contributing valuable epidemiological data. The study will facilitate genetic counseling for families experiencing similar clinical features, both within Pakistani populations and in other regions.
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  • 文章类型: Case Reports
    镰刀菌,作为一种机会病原体,可以感染免疫抑制的个体,中性粒细胞减少症,造血干细胞移植(HSCT),或其他高风险因素,导致侵入性或局部感染。特别是在同种异体HSCT后的患者中,镰刀菌更容易引起侵袭性或播散性感染。这项研究的重点是接受HSCT治疗严重再生障碍性贫血的儿科患者。虽然最初的血培养是阴性的,移植后1,3-β-D-葡聚糖试验(G试验)检测到异常.为了确定病原体,同时对血液样本进行宏基因组下一代测序(mNGS)和血液培养.令人惊讶的是,基质辅助激光解吸/电离飞行时间质谱(MALDI-TOFMS)和mNGS的结果略有不同,通过mNGS识别出坏死性血细胞坏死性,而基于培养的MALDI-TOFMS显示镰刀菌。为了澄清结果,进行Sanger测序以进一步检测,结果与MALDI-TOFMS的结果一致。由于Sanger测序的准确性高于mNGS,诊断改为侵袭性镰刀菌感染.随着技术的进步,近年来开发了各种入侵真菌的检测方法,比如MNGS,具有高灵敏度。虽然传统方法可能很耗时,由于它们的高特异性,它们是重要的。因此,在临床实践中,必须以互补的方式利用传统和新的检测方法来增强侵袭性真菌感染的诊断。
    Fusarium solani, as an opportunistic pathogen, can infect individuals with immunosuppression, neutropenia, hematopoietic stem cell transplantation (HSCT), or other high-risk factors, leading to invasive or localized infections. Particularly in patients following allogeneic HSCT, Fusarium solani is more likely to cause invasive or disseminated infections. This study focuses on a pediatric patient who underwent HSCT for severe aplastic anemia. Although initial blood cultures were negative, an abnormality was detected in the 1,3-β-D-glucan test (G test) post-transplantation. To determine the causative agent, blood samples were subjected to metagenomic next-generation sequencing (mNGS) and blood cultures simultaneously. Surprisingly, the results of matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS) and mNGS differed slightly, with mNGS identifying Nectria haematonectria, while MALDI-TOF MS based on culture showed Fusarium solani. To clarify the results, Sanger sequencing was performed for further detection, and the results were consistent with those of MALDI-TOF MS. Since the accuracy of Sanger sequencing is higher than that of mNGS, the diagnosis was revised to invasive Fusarium solani infection. With advancements in technology, various detection methods for invasive fungi have been developed in recent years, such as mNGS, which has high sensitivity. While traditional methods may be time-consuming, they are important due to their high specificity. Therefore, in clinical practice, it is essential to utilize both traditional and novel detection methods in a complementary manner to enhance the diagnosis of invasive fungal infections.
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  • 文章类型: Journal Article
    背景:新疆宫颈癌发病率高。人乳头瘤病毒的遗传变异可能会增加其侵袭能力,传播,逃避宿主的免疫反应。
    方法:对90份HPV16感染阳性样本的HPV16基因组进行测序。分析了E4,E5和L2基因的序列,以揭示新疆HPV16的序列变异以及HPV16感染阳性样品之间变异的分布。
    结果:90份HPV16感染样本中有81份显示HPV16E4基因变异,有18个核苷酸变异位点,其中8个位点为同义变异,11个为错义变异。90例HPV16感染样本显示HPV16E5和L2基因变异,具有16个核苷酸变异位点(6个同义,E5基因中的11个错义变异)和L2基因中的100个核苷酸变异位点(37个同义,67种错义变化)。HPV16L2基因错义变异的频率G3377A、G3599A,G3703A,病例组的G3757A高于对照组。
    结论:系统发育树分析表明,87个样本为欧洲菌株,3例为亚洲毒株,没有其他变化,G4181A与亚洲菌株有关。HPV16L2基因错义变异G3377A,G3599A,G3703A,病例组和G3757A的频率明显高于对照组。
    BACKGROUND: There is a high incidence of cervical cancer in Xinjiang. Genetic variation in human papillomavirus may increase its ability to invade, spread, and escape host immune response.
    METHODS: HPV16 genome was sequenced for 90 positive samples of HPV16 infection. Sequences of the E4, E5 and L2 genes were analysed to reveal sequence variation of HPV16 in Xinjiang and the distribution of variation among the positive samples of HPV16 infection.
    RESULTS: Eighty-one of the 90 samples of HPV16 infection showed variation in HPV16 E4 gene with 18 nucleotide variation sites, of which 8 sites were synonymous variations and 11 missense variations. 90 samples of HPV16 infection showed variation in HPV16 E5 and L2 genes with 16 nucleotide variation sites (6 synonymous, 11 missense variations) in the E5 gene and 100 nucleotide variation sites in L2 gene (37 synonymous, 67 missense variations). The frequency of HPV16 L2 gene missense variations G3377A, G3599A, G3703A, and G3757A was higher in the case groups than in the control groups.
    CONCLUSIONS: Phylogenetic tree analysis showed that 87 samples were European strains, 3 cases were Asian strains, there were no other variations, and G4181A was related to Asian strains. HPV16 L2 gene missense variations G3377A, G3599A, G3703A, and G3757A were significantly more frequent in the case groups than in the control groups.
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  • 文章类型: Journal Article
    西藏西北白绒山羊(NXWCG)是西藏自治区第一个绒山羊新品种。它具有极高细度的显著特点,光泽,和柔软。全基因组关联分析是一种有效的生物学方法,用于测量基因组中两个分子标记之间基因型变化的一致性和相关性。此外,它可以筛选出影响生物个体复杂性状的关键基因。本研究旨在分析NXWCG中羊绒性状变异的遗传机制,发现与超细羊绒等性状密切相关的SNP位点和关键基因。此外,通过基因功能注释和生物学功能挖掘对获得的显著SNPs附近的关键基因进行分析。在这项研究中,四个性状的表型数据(羊绒长度,纤维长度,羊绒直径,和羊绒生产)被收集。采用GGP_Goat_70KSNP芯片对实验组的耳组织DNA进行基因分型。随后,表型数据和基因型数据的关联使用Gemma-0.98.1软件.线性混合模型用于关联研究。结果表明,4个羊毛性状在基因组水平上与18个显著SNPs相关,在染色体水平上与232个SNPs相关,通过使用组装ARS1从Caprahircus基因组中注释的基因。共获得107个与羊毛性状有关的候选基因。结合基因本体论和京都百科全书的基因和基因组富集分析,我们可以找到CLNS1A,CCSER1,RPS6KC1,PRLR,KCNRG,KCNK9和CLYBL可作为NXWCG羊毛性状的重要候选基因。我们使用Sanger测序和适宜性卡方检验进一步验证GWAS筛选的显著位点和候选基因。结果表明,五个候选基因上的碱基突变位点,CCSER1(snp12579,34,449,796,A→G),RPS6KC1(snp41503,69,173,527,A→G),KCNRG(snp41082,67,134,820,G→A),KCNK9(14:78472665,78,472,665,G→A),和CLYBL(12:9705753,9,705,753,C→T),显著影响NXWCG的羊毛性状。该结果为今后的研究提供了有价值的依据,有助于更好地理解山羊的遗传结构变异。
    Northwest Xizang White Cashmere Goat (NXWCG) is the first new breed of cashmere goat in the Xizang Autonomous Region. It has significant characteristics of extremely high fineness, gloss, and softness. Genome-wide association analysis is an effective biological method used to measure the consistency and correlation of genotype changes between two molecular markers in the genome. In addition, it can screen out the key genes affecting the complex traits of biological individuals. The aim of this study was to analyze the genetic mechanism of cashmere trait variation in NXWCG and to discover SNP locus and key genes closely related to traits such as superfine cashmere. Additionally, the key genes near the obtained significant SNPs were analyzed by gene function annotation and biological function mining. In this study, the phenotype data of the four traits (cashmere length, fiber length, cashmere diameter, and cashmere production) were collected. GGP_Goat_70K SNP chip was used for genotyping the ear tissue DNA of the experimental group. Subsequently, the association of phenotype data and genotype data was performed using Gemma-0.98.1 software. A linear mixed model was used for the association study. The results showed that four fleece traits were associated with 18 significant SNPs at the genome level and 232 SNPs at the chromosome level, through gene annotated from Capra hircus genome using assembly ARS1. A total of 107 candidate genes related to fleece traits were obtained. Combined with Gene Ontology and Kyoto Encyclopedia of Genes and Genomes enrichment analysis, we can find that CLNS1A, CCSER1, RPS6KC1, PRLR, KCNRG, KCNK9, and CLYBL can be used as important candidate genes for fleece traits of NXWCG. We used Sanger sequencing and suitability chi-square test to further verify the significant loci and candidate genes screened by GWAS, and the results show that the base mutations loci on the five candidate genes, CCSER1 (snp12579, 34,449,796, A → G), RPS6KC1 (snp41503, 69,173,527, A → G), KCNRG (snp41082, 67,134,820, G → A), KCNK9 (14:78472665, 78,472,665, G → A), and CLYBL (12: 9705753, 9,705,753, C → T), significantly affect the fleece traits of NXWCG. The results provide a valuable basis for future research and contribute to a better understanding of the genetic structure variation of the goat.
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  • 文章类型: Journal Article
    总结颅面纤维发育不良(CFD)患者眼部并发症的临床表现,找到有效的早期诊断方法。
    九名患有眼部并发症的CFD患者,他们的父母被招募到这项研究中。所有患者均行眼部和全身检查。收集所有患者的骨病变和患者及其父母的外周血进行全外显子组测序(WES)。根据低频有害变异的筛查,和生物信息学变异预测软件,在多个CFD患者中发现了可能的致病变异.通过Sanger测序验证变体。进行了三元分析以验证CFD的遗传模式。
    所有患者均被诊断为CFD,根据临床表现,经典的射线照相外观,和病理活检。9例CFD患者的主要症状,包括视觉下降(9/9),颅面畸形(3/9)和斜视(2/9),很少有眼外表现。所有CFD患者的家庭背景表明,只有患者受到影响,他们的直系亲属很正常。在CFD患者的所有骨病变中都发现了GNAS变异,包括两种变体类型:c.601C>T:p。R201C(6/9)和c.602G>A:p。R201H(3/9)在外显子8。WES的检出率达到100%,但只有77.8%的Sanger测序。有趣的是,我们发现在CFD患者或其父母的外周血样本中无法检测到GNAS变异,未发现与CFD相关的其他潜在致病基因变异.
    对于患有涉及视神经管或蝶窦区域的骨病变的CFD患者,还应考虑眼部症状。此外,我们确认CFD不是遗传的,GNAS基因中的体细胞变异是引起CFD的主要致病基因。与传统的CFD分子遗传学诊断方法相比,WES更可行和有效,但样品类型有限。
    UNASSIGNED: To summarize the clinical manifestations of craniofacial fibrous dysplasia (CFD) patients with ocular complications, and find effective methods to diagnose early.
    UNASSIGNED: Nine CFD patients with ocular complications, and their parents were recruited in this study. All patients underwent ocular and systemic examinations. Bone lesions from all patients and peripheral blood from patients and their parents were collected for whole exome sequencing (WES). According to the screening for low-frequency deleterious variants, and bioinformatics variants prediction software, possible disease-causing variants were found in multiple CFD patients. The variants were validated by Sanger sequencing. Trio analysis was performed to verify the genetic patterns of CFD.
    UNASSIGNED: All patients were diagnosed with CFD, according to the clinical manifestations, classic radiographic appearance, and pathological biopsy. The main symptoms of the 9 CFD patients, included visual decline (9/9), craniofacial deformity (3/9) and strabismus (2/9), with few extraocular manifestations. The family backgrounds of all the CFD patients indicated that only the patient was affected, and their immediate family members were normal. GNAS variants were identified in all bone lesions from CFD patients, including two variant types: c.601C > T:p.R201C(6/9) and c.602G > A:p.R201H (3/9) in exon 8. The detection rate reached 100% by WES, but only 77.8% by Sanger sequencing. Interestingly, we found GNAS variants could not be detected in peripheral blood samples from CFD patients or their parents, and other potentially disease-causing gene variants related to CFD were not found.
    UNASSIGNED: For CFD patients with bone lesions involving the optic canal or sphenoid sinus regions, ocular symptoms should also be considered. Furthermore, we confirmed that CFD is not inherited, somatic variants in the GNAS gene are the main pathogenic gene causing CFD. Compared to the traditional methods in molecular genetic diagnosis of CFD, WES is more feasible and effective but limited in the type of samples.
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  • 文章类型: Journal Article
    血红蛋白(Hb)Lepore是一种罕见的缺失性δβ-地中海贫血,由δ-β基因之间的融合引起,传统的地中海贫血基因检测技术无法识别。这项研究的目的是使用第三代测序对四个无关的中国家庭的HbLepore进行分子诊断和临床分析。平均红细胞体积(MCV)水平降低,在四个家庭的先证者中观察到平均红细胞血红蛋白(MCH)和异常的Hb带。然而,使用基于传统地中海贫血基因检测的聚合酶链反应-反向斑点杂交技术,在纳入的家族中未检测到常见的α和β-地中海贫血变异体.进一步的第三代测序显示,所有患者的HbLepore-Boston-Washington变异相似,部分覆盖了HBB和HBD珠蛋白基因,导致δ-β融合基因的形成。特异性gap-PCR和Sanger测序证实,所有患者均携带相似的HbLepore-Boston-Washington杂合子。此外,在先证者的家庭2的妻子中观察到MCH和HbA2水平降低,通过第三代测序鉴定出南昌Hb的一种极为罕见的变体(GGT>AGT)(HBA2:c.46G>A),并通过Sanger测序进一步证实。本研究首次报道了中国人群中类似的HbLepore-Boston-Washington。通过结合利用Hb毛细管电泳和第三代测序,可以有效提高HbLepore的筛查和诊断。
    Hemoglobin (Hb) Lepore is a rare deletional δβ-thalassemia caused by the fusion between delta-beta genes, and cannot be identified by traditional thaltassemia gene testing technology. The aim of this study was to conduct molecular diagnosis and clinical analysis of Hb Lepore in four unrelated Chinese families using third generation sequencing. Decreased levels of mean corpuscular volume (MCV), mean corpuscular hemoglobin (MCH) and an abnormal Hb band were observed in the probands of the four families. However, no common α and β-thalassemia variants were detected in the enrolled families using polymerase chain reaction-reverse dot blot hybridization based traditional thalassemia gene testing. Further third-generation sequencing revealed similar Hb Lepore-Boston-Washington variants in all the patients, which were resulted from partial coverage of the HBB and HBD globin genes, leading to the formation of a delta-beta fusion gene. Specific gap-PCR and Sanger sequencing confirmed that all the patients carried a similar Hb Lepore-Boston-Washington heterozygote. In addition, decreased levels of MCH and Hb A2 were observed in the proband\'s wife of family 2, an extremely rare variant of Hb Nanchang (GGT > AGT) (HBA2:c.46G > A) was identified by third-generation sequencing and further confirmed by Sanger sequencing. This present study was the first to report the similar Hb Lepore-Boston-Washington in Chinese population. By combining the utilization of Hb capillary electrophoresis and third-generation sequencing, the screening and diagnosis of Hb Lepore can be effectively enhanced.
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  • 文章类型: Journal Article
    缺血性中风(IS)是死亡和成人残疾的主要原因。然而,这种复杂疾病的发病机制尚不清楚。本研究旨在评估ITLN1单核苷酸多态性(SNPs)与西安人群IS易感性之间的关系,陕西省。
    在这项研究中,我们设计了位于ITLN1基因启动子区转录起始位点上游-3,308bp的聚合酶链反应(PCR)引物.通过PCR扩增目标片段并通过琼脂糖凝胶电泳鉴定。然后在从包含1,272名参与者(636名对照和636例)的队列中提取的样本中进行Sanger测序,并将获得的序列与美国国家生物技术信息中心(NCBI)网站上可用的参考序列进行比较,以检测ITLN1基因启动子区域中的SNP。采用Logistic回归分析评估ITLN1多态性与IS风险之间的关系。调整年龄和性别。通过假阳性报告概率(FPRP)和错误发现率(FDR)测试了显着的阳性结果。使用多因素降维(MDR)软件探索了值得注意的SNP之间的相互作用及其与IS风险的预测关系。
    将Sanger测序的结果与NCBI网站上的参考序列进行了比较,我们发现ITLN1基因启动子中的14个SNP满足Hardy-Weinberg平衡(HWE)。Logistic回归分析显示,ITLN1与IS风险降低相关(rs6427553:纯合C/C:调整后的0.65%/C:0.69,95%CI[0.48-0.97];对数加性:调整后的OR:0.83,95%CI[0.70-0.98];r7411035:纯合G/G:调整后0.66-A0.95-AOR-0.94-0.尤其是年龄在60岁以下的人和男性。
    简而言之,我们的研究揭示了ITLN1变体(rs6427553,rs7411035和rs4656958)与西安人群的IS风险之间的相关性,陕西省,为ITLN1基因作为预测IS易感性的潜在生物标志物奠定基础。
    UNASSIGNED: Ischemic stroke (IS) is the main cause of death and adult disability. However, the pathogenesis of this complicated disease is unknown. The present study aimed to assess the relationship between ITLN1 single nucleotide polymorphisms (SNPs) and the susceptibility to IS in Xi\'an population, Shaanxi province.
    UNASSIGNED: In this study, we designed polymerase chain reaction (PCR) primers located at -3,308 bp upstream of the transcription initiation site within promoter region of the ITLN1 gene. The target fragment was amplified by PCR and identified by agarose gel electrophoresis. Sanger sequencing was then performed in the samples extracted from a cohort comprising 1,272 participants (636 controls and 636 cases), and the obtained sequences were compared with the reference sequences available on the National Center for Biotechnology Information (NCBI) website to detect SNPs in the ITLN1 gene promoter region. Logistic regression analysis was employed to assess the relationship between ITLN1 polymorphisms and IS risk, with adjustments for age and gender. Significant positive results were tested by false-positive report probability (FPRP) and false discovery rate (FDR). The interaction among noteworthy SNPs and their predictive relationship with IS risk were explored using the Multi-Factor Dimensionality Reduction (MDR) software.
    UNASSIGNED: The results of Sanger sequencing were compared with the reference sequences on the NCBI website, and we found 14 SNPs in ITLN1 gene promoter satisfied Hardy-Weinberg equilibrium (HWE). Logistic regression analysis showed that ITLN1 was associated with a decreased risk of IS (rs6427553: Homozygous C/C: adjusted OR: 0.69, 95% CI [0.48-0.97]; Log-additive: adjusted OR: 0.83, 95% CI [0.70-0.98]; rs7411035: Homozygous G/G: adjusted OR: 0.66, 95% CI [0.47-0.94]; Dominant G/T-G/G: adjusted OR: 0.78, 95% CI [0.62-0.98]; Log-additive: adjusted OR: 0.81, 95% CI [0.69-0.96]; rs4656958: Heterozygous G/A: adjusted OR: 0.74, 95% CI [0.59-0.94]; Homozygous A/A: adjusted OR: 0.51, 95% CI [0.31-0.84]; Dominant G/A-A/A: adjusted OR: 0.71, 95% CI [0.57-0.89]; Recessive A/A: adjusted OR: 0.59, 95% CI [0.36-0.96]; Log-additive: adjusted OR: 0.73, 95% CI [0.61-0.88]), especially in people aged less than 60 years and males.
    UNASSIGNED: In short, our study revealed a correlation between ITLN1 variants (rs6427553, rs7411035 and rs4656958) and IS risk in Xi\'an population, Shaanxi province, laying a foundation for ITLN1 gene as a potential biomarker for predicting susceptibility to IS.
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  • 文章类型: Journal Article
    生存危机困扰着许多动物,尤其是濒危和珍稀动物。准确的物种识别在动物资源保护中起着举足轻重的作用。在这项研究中,我们开发了一种动物物种鉴定方法,称为全基因组分析(AGE),它通过对全基因组的生物信息学分析找到物种特异性序列,然后使用实验技术识别这些序列来识别物种。为了清楚地演示AGE方法,CervusNippon,一个著名的濒危物种,和一个密切相关的物种,Cervuselaphus,被设定为模型物种,没有和发表的基因组,分别。通过分析C.nippon和C.elaphus的整个基因组,通过下一代测序和在线数据库获得,我们建立了包含7,670,140和570,981个序列的特定序列数据库,分别。然后,使用Sanger测序和CRISPR-Cas12a系统通过实验证实了序列的物种特异性.此外,对于11个新鲜动物样本和35个市售产品,我们的结果与其他权威鉴定方法的结果完全一致,展示AGE的精度和潜在的应用。值得注意的是,AGE在35种市售产品中发现了混合物,并成功鉴定了它。这项研究拓宽了使用整个基因组进行物种鉴定的范围,并阐明了AGE保护动物资源的潜力。
    Survival crises stalk many animals, especially endangered and rare animals. Accurate species identification plays a pivotal role in animal resource conservation. In this study, we developed an animal species identification method called Analysis of whole-GEnome (AGE), which identifies species by finding species-specific sequences through bioinformatics analysis of the whole genome and subsequently recognizing these sequences using experimental technologies. To clearly demonstrate the AGE method, Cervus nippon, a well-known endangered species, and a closely related species, Cervus elaphus, were set as model species, without and with published genomes, respectively. By analyzing the whole genomes of C. nippon and C. elaphus, which were obtained through next-generation sequencing and online databases, we built specific sequence databases containing 7,670,140 and 570,981 sequences, respectively. Then, the species specificities of the sequences were confirmed experimentally using Sanger sequencing and the CRISPR-Cas12a system. Moreover, for 11 fresh animal samples and 35 commercially available products, our results were in complete agreement with those of other authoritative identification methods, demonstrating AGE\'s precision and potential application. Notably, AGE found a mixture in the 35 commercially available products and successfully identified it. This study broadens the horizons of species identification using the whole genome and sheds light on the potential of AGE for conserving animal resources.
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