Detection methods

检测方法
  • 文章类型: Journal Article
    人乳头瘤病毒(HPV)感染在宫颈癌中起着重要作用。HPV属于乳头状瘤病毒科,是一种无包膜的,小DNA病毒HPV感染可分为两种不同的情况:i)有或没有整合到宿主染色体中。检测其感染可用于宫颈病变的研究。在本次审查中,HPV的结构和功能特征,HPV分型,感染和传播方式,详细介绍了宫颈易感染的危险因素和HPV检测方法。HPV检测方法的发展可能对宫颈疾病的预防和治疗具有深远的意义。本文综述了各种HPV检测方法的优点和局限性。
    Human papillomavirus (HPV) infection plays an important role in cervical cancer. HPV is classified within the Papillomaviridae family and is a non-enveloped, small DNA virus. HPV infection can be classified into two distinct scenarios: i) With or without integration into the host chromosomes. Detection of its infection can be useful in the study of cervical lesions. In the present review, the structural and functional features of HPV, HPV typing, infection and transmission mode, the risk factors for cervical susceptibility to infection and HPV detection methods are described in detail. The development of HPV detection methods may have far-reaching significance in the prevention and treatment of cervical disease. This review summarizes the advantages and limitations of each HPV detection method.
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  • 文章类型: Journal Article
    病原体的出现和死灰复燃导致了重大的全球健康挑战。从历史上看,废水监测一直用于追踪水传播或粪便经口传播的病原体,提供一个敏感的手段来监测一个社区内的病原体。这项技术提供了一个全面的,实时,和具有成本效益的疾病监测方法,特别是对于难以通过单独的临床筛查来监测的疾病。
    这篇叙述性综述考察了废水监测的知识现状,强调用于检测废水中潜在病原体的重要发现和技术。它包括关于检测方法的文献综述,令人担忧的病原体,以及监控过程中面临的挑战。
    废水监测已被证明是早期预警和及时干预传染病的有力工具。它可以检测无症状和症状前个体脱落的病原体,提供疾病传播的准确人口水平视图。审查重点介绍了废水监测在追踪关注的关键病原体方面的应用,如胃肠道病原体,呼吸道病原体,和像SARS-CoV-2这样的病毒。
    该评论讨论了废水监测对公共卫生的好处,特别是它在加强现有传染病监测系统方面的作用。它还解决了面临的挑战,例如需要改进的检测方法和抗菌素耐药性的管理。强调了废水监测为公共卫生缓解战略和疫情应对方案提供信息的潜力。
    废水监测是抗击传染病的宝贵工具。它为病原体的传播和进化提供了独特的视角,协助预防和控制疾病流行。这篇综述强调了在这一领域继续研究和开发的重要性,以克服当前的挑战,并最大限度地发挥公共卫生废水监测的潜力。
    UNASSIGNED: The emergence and resurgence of pathogens have led to significant global health challenges. Wastewater surveillance has historically been used to track water-borne or fecal-orally transmitted pathogens, providing a sensitive means of monitoring pathogens within a community. This technique offers a comprehensive, real-time, and cost-effective approach to disease surveillance, especially for diseases that are difficult to monitor through individual clinical screenings.
    UNASSIGNED: This narrative review examines the current state of knowledge on wastewater surveillance, emphasizing important findings and techniques used to detect potential pathogens from wastewater. It includes a review of literature on the detection methods, the pathogens of concern, and the challenges faced in the surveillance process.
    UNASSIGNED: Wastewater surveillance has proven to be a powerful tool for early warning and timely intervention of infectious diseases. It can detect pathogens shed by asymptomatic and pre-symptomatic individuals, providing an accurate population-level view of disease transmission. The review highlights the applications of wastewater surveillance in tracking key pathogens of concern, such as gastrointestinal pathogens, respiratory pathogens, and viruses like SARS-CoV-2.
    UNASSIGNED: The review discusses the benefits of wastewater surveillance in public health, particularly its role in enhancing existing systems for infectious disease surveillance. It also addresses the challenges faced, such as the need for improved detection methods and the management of antimicrobial resistance. The potential for wastewater surveillance to inform public health mitigation strategies and outbreak response protocols is emphasized.
    UNASSIGNED: Wastewater surveillance is a valuable tool in the fight against infectious diseases. It offers a unique perspective on the spread and evolution of pathogens, aiding in the prevention and control of disease epidemics. This review underscores the importance of continued research and development in this field to overcome current challenges and maximize the potential of wastewater surveillance in public health.
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  • 文章类型: Journal Article
    沙门氏菌,肠杆菌科中流行的人畜共患病原体,在全球细菌中毒事件中处于领先地位,从而表明其在公共卫生中的重要性。因此,强调了食品中沙门氏菌快速而简单的检测技术的必要性。经过二十多年的发展,环介导等温扩增(LAMP)已成为聚合酶链反应的有效辅助手段,在等温扩增领域表现出显著的优势。关于其在沙门氏菌快速检测中的应用的报道越来越多,这一点越来越明显。本文对LAMP的技术原理和特点进行了系统的阐述,综述了利用LAMP及其衍生物快速检测沙门氏菌的研究进展。此外,不同水平报道的靶基因,包括沙门氏菌属,物种,血清群,和血清型,总结,旨在为推进LAMP在沙门氏菌检测中的应用提供有价值的参考。最后,我们期待LAMP的发展方向,期待更具竞争力的方法为食品安全应用提供有力支持。
    Salmonella, the prevailing zoonotic pathogen within the Enterobacteriaceae family, holds the foremost position in global bacterial poisoning incidents, thereby signifying its paramount importance in public health. Consequently, the imperative for expeditious and uncomplicated detection techniques for Salmonella in food is underscored. After more than two decades of development, loop-mediated isothermal amplification (LAMP) has emerged as a potent adjunct to the polymerase chain reaction, demonstrating significant advantages in the realm of isothermal amplification. Its growing prominence is evident in the increasing number of reports on its application in the rapid detection of Salmonella. This paper provides a systematic exposition of the technical principles and characteristics of LAMP, along with an overview of the research progress made in the rapid detection of Salmonella using LAMP and its derivatives. Additionally, the target genes reported in various levels, including Salmonella genus, species, serogroup, and serotype, are summarized, aiming to offer a valuable reference for the advancement of LAMP application in Salmonella detection. Finally, we look forward to the development direction of LAMP and expect more competitive methods to provide strong support for food safety applications.
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  • 文章类型: Journal Article
    蜱是已知的各种病原体的载体,包括细菌,寄生虫和病毒,影响动物和人类健康。提高对蜱传病原体分布的认识,结合它们在蜱中的早期发现,是抗击蜱传疾病和减轻其影响的重要步骤。在这里,我们概述了蜱样本中病原体检测的常用方法是什么,包括最近关于如何处理蜱样的发展,通过蜱的化学或物理破坏来接触蜱传播的病原体,和用于RNA/DNA提取步骤的方法。此外,我们讨论了为其他样本类型(如血清或血液)开发的有前途的工具,以检测蜱传播的病原体,以及将来可以用于滴答样本的那些。
    Ticks are known vectors of various pathogens, including bacteria, parasites and viruses, that impact both animal and human health. Improving knowledge of the distribution of tick-borne pathogens, combined with their early detection in ticks, are essential steps to fight against tick-borne diseases and mitigate their impacts. Here we give an overview of what are the common methods of pathogen detection in tick samples, including recent developments concerning how to handle tick samples, get access to tick-borne pathogens by chemical or physical disruption of the ticks, and methods used for the RNA/DNA extraction steps. Furthermore, we discuss promising tools that are developed for other sample types such as serum or blood to detect tick-borne pathogens, and those that could be used in the future for tick samples.
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  • 文章类型: Journal Article
    对导航和定位服务的开发和集成到广泛的接收机中的兴趣增加,使得它们容易受到各种安全攻击,诸如全球导航卫星系统(GNSS)干扰和欺骗攻击。包括软件定义无线电(SDR)在内的低成本设备的可用性提供了可用于执行这些攻击的可负担得起的平台的广泛可访问性。干扰和欺骗干扰的早期检测对于缓解和避免服务降级至关重要。由于这些原因,发展高效的检测方法已经成为一个重要的研究课题,文献中已经报道了许多有效的检测方法。本调查为读者提供了对GNSS干扰和欺骗干扰检测方法的全面和系统的审查。根据特定参数和特征对所选方法进行分类和分类,重点是该领域的最新进展。尽管已经报道了许多不同的检测方法,为开发新的和更有效的方法而进行的重大研究工作仍在进行中。这些努力是由快速发展和造成高安全风险的攻击数量增加推动的。本文对GNSS干扰和欺骗检测方法进行了综述,可用于针对特定目的和约束条件选择最合适的解决方案,并为以后的研究提供参考。
    Increased interest in the development and integration of navigation and positioning services into a wide range of receivers makes them susceptible to a variety of security attacks such as Global Navigation Satellite Systems (GNSS) jamming and spoofing attacks. The availability of low-cost devices including software-defined radios (SDRs) provides a wide accessibility of affordable platforms that can be used to perform these attacks. Early detection of jamming and spoofing interferences is essential for mitigation and avoidance of service degradation. For these reasons, the development of efficient detection methods has become an important research topic and a number of effective methods has been reported in the literature. This survey offers the reader a comprehensive and systematic review of methods for detection of GNSS jamming and spoofing interferences. The categorization and classification of selected methods according to specific parameters and features is provided with a focus on recent advances in the field. Although many different detection methods have been reported, significant research efforts toward developing new and more efficient methods remain ongoing. These efforts are driven by the rapid development and increased number of attacks that pose high-security risks. The presented review of GNSS jamming and spoofing detection methods may be used for the selection of the most appropriate solution for specific purposes and constraints and also to provide a reference for future research.
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  • 文章类型: Journal Article
    阿尔茨海默病(Alzheimer’sdisease,AD)是一种严重的老年痴呆症,以认知功能下降为特征,淀粉样蛋白-β斑块,和神经原纤维缠结。AD极大地损害了受害者的生活质量,并给整个社会带来了沉重负担。由AD引起的痴呆症患者的数量,前驱AD,据估计,全球临床前AD约为3.2亿、69亿和3.15亿,分别。目前的临床诊断是基于临床症状,临床研究表明,正电子发射断层扫描(PET)和脑脊液(CSF)生物标志物具有出色的诊断性能。然而,CSF生物标志物检测和PET的应用受到侵袭性和高成本的限制。临床症状的存在意味着AD病理已进步多年,只有少数药物被批准用于AD的治疗。因此,早期诊断对于控制AD的结局极为重要.在这次审查中,我们提供了制定临床诊断标准的概述,临床研究中的诊断策略,开发基于血液的生物标志物检测,和有前途的基于纳米技术的检测。
    Alzheimer\'s disease (AD) is a serious dementia afflicting aging population and is characterized by cognitive decline, amyloid-β plaques, and neurofibrillary tangles. AD substantially impairs the life quality of the victims and poses a heavy burden on the society at large. The number of people with dementia due to AD, prodromal AD, and preclinical AD is estimated to stand at roughly 3.2, 69, and 315 million worldwide, respectively. Current clinical diagnosis is based on clinical symptoms, and clinical research demonstrated that positron emission tomography (PET) and cerebrospinal fluid (CSF) biomarkers had excellent diagnostic performance. However, the application of CSF biomarker tests and PET are restricted by the invasiveness and high cost. The presence of clinical symptoms means that AD pathology has been progressing for many years, and only a few drugs have been approved for the traetemnt of AD. Therefore, early diagnosis is extremely important for controlling the outcomes caused by AD. In this review, we provided an overview of developing clinical diagnostic criteria, diagnostic strategies under clinical research, developing blood based-biomarker assays, and promising nanotechnologically-based assays.
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  • 文章类型: Journal Article
    该研究评估了42名健康成年人补充维生素D3后同时收集的毛细血管和静脉血浆中25-羟基维生素D[25(OH)D]水平的相关性和一致性。采用随机数字表法将其随机分为3组。A组每天服用1000IU维生素D3,B组每10天服用10,000IU维生素D3,C组每30天服用30,000IU维生素D3,直到第12个月结束。分别于第1天、第14天、第28天、第6个月和第12个月采用化学发光免疫分析法(CLIA)和质谱(LC-MS)检测血清25(OH)D水平,同时用化学发光免疫分析法(CLIA)检测毛细血管血清25(OH)D水平。采用Pearson相关分析和线性回归分析研究了两种样品的发现与同一样品中不同检测方法获得的结果之间的关系和转换方程。Bland-Altman方法,Kappa分析,和受试者工作特征(ROC)曲线用于评估一致性,灵敏度,和特异性。
    三组均在6个月时达到稳定高峰,三组的平均水平分别为49.21、42.50和43.025nmol/L,分别。A组的平均水平高于B组和C组(P<0.001)。LC-MS和CLIA检测42例健康成人血清25(OH)D平均值分别为45.32nmol/L和49.88nmol/L,分别,LC-MS测定毛细血管血中25(OH)D的平均值为52.03nmol/L,差异有统计学意义(P<0.001)。Pearson相关分析表明,散点图数据的线性拟合公式为:静脉25(OH)D浓度(nmol/L)=1.105*毛细血管25(OH)D浓度-7.532nmol/L,R2=0.625。在临床诊断中,静脉和校正的毛细血管25(OH)D水平之间观察到良好的一致性(Kappa值0.75)。毛细血管血中调整的血清25(OH)D具有较高的临床预测价值。
    当测得的25(OH)D水平较高时,两种方法之间的一致性很好。标准化毛细管血液化学发光法可用于25(OH)D的检测。
    UNASSIGNED: The study assessed the correlation and concordance of 25-hydroxyvitamin D [25(OH)D] levels in capillary and venous plasma collected simultaneously after vitamin D3 supplementation in 42 healthy adults. They were randomly divided into three groups by random number table method. Group A took 1,000 IU vitamin D3 daily, group B took 10,000 IU vitamin D3 every 10 days, and group C took 30,000 IU vitamin D3 every 30 days until the end of the 12th month. Venous blood serum 25(OH)D level was detected by chemiluminescence immunoassay (CLIA) and mass spectrometry (LC-MS) at day 1, day 14, day 28, month 6, and month 12 respectively, the capillary blood serum 25(OH)D level was detected by chemiluminescence immunoassay (CLIA) at the same time. Pearson correlation analysis and linear regression analysis were employed to investigate the relationship and transformation equation between the findings of the two samples and the results obtained from different detection methods within the same sample. The Bland-Altman method, Kappa analysis, and receiver operating characteristic (ROC) curve were utilized for assessing consistency, sensitivity, and specificity.
    UNASSIGNED: The three groups all reached a stable peak at 6 months, and the average levels of the three groups were 49.21, 42.50 and 43.025 nmol/L, respectively. The average levels of group A were higher than those of group B and group C (P < 0.001). The mean values of serum 25(OH)D measured by LC-MS and CLIA in 42 healthy adults were 45.32 nmol/L and 49.88 nmol/L, respectively, and the mean values of 25(OH)D measured by LC-MS in capillary blood were 52.03 nmol/L, and the difference was statistically significant (P < 0.001). Pearson correlation analysis showed that the linear fitting formula of scatter data was as follows: venous 25(OH)D concentration (nmol/L) = 1.105 * capillary 25(OH)D concentration -7.532 nmol/L, R2 = 0.625. Good agreement was observed between venous and corrected capillary 25(OH)D levels in clinical diagnosis (Kappa value 0.75). The adjusted serum 25(OH)D in capillary blood had a high clinical predictive value.
    UNASSIGNED: The agreement between the two methods is good when the measured 25(OH)D level is higher. Standardized capillary blood chemiluminescence method can be used for 25(OH)D detection.
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  • 文章类型: Journal Article
    在预计未来全球人口增长的背景下,提高农业食品产量至关重要。植物病害显著影响作物生产和粮食安全。现代微流体为检测这些缺陷提供了紧凑且方便的方法。尽管这一领域仍处于起步阶段,很少有全面的评论探讨这一主题,实践研究潜力巨大。本文回顾了这些原则,材料,以及微流控技术在检测各种病原体引起的植物病害中的应用。它在实现分离方面的表现,富集,并对不同病原体的检测进行了深入的讨论,以揭示其前景。凭借其多功能的设计,微流体已经发展为快速,敏感,和低成本的植物病害监测。包含用于分离的模块,预浓缩,扩增,检测可以早期发现微量病原体,加强作物安全。与成像系统耦合,智能和数字设备越来越多地被报道为先进的解决方案。
    In the context of global population growth expected in the future, enhancing the agri-food yield is crucial. Plant diseases significantly impact crop production and food security. Modern microfluidics offers a compact and convenient approach for detecting these defects. Although this field is still in its infancy and few comprehensive reviews have explored this topic, practical research has great potential. This paper reviews the principles, materials, and applications of microfluidic technology for detecting plant diseases caused by various pathogens. Its performance in realizing the separation, enrichment, and detection of different pathogens is discussed in depth to shed light on its prospects. With its versatile design, microfluidics has been developed for rapid, sensitive, and low-cost monitoring of plant diseases. Incorporating modules for separation, preconcentration, amplification, and detection enables the early detection of trace amounts of pathogens, enhancing crop security. Coupling with imaging systems, smart and digital devices are increasingly being reported as advanced solutions.
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  • 文章类型: Journal Article
    呋喃西林(NFZ)的致癌和致畸风险导致其在水产品中的限制。氨基脲(SEM),它的一种代谢物,是现代监测技术的主要焦点。然而,水产品中的SEM残留被认为是通过内源性机制形成的,尤其是水生甲壳类动物。在这篇文章中,我们将讨论SEM的来源,包括其在水产品中作为抗生素的用途(硝基呋喃酮),其在食品加工过程中的生产(偶氮二甲酰胺和次氯酸盐处理),它在体内自然发生,以及它从环境中的摄入。SEM检测技术分为三组:衍生化,提取/纯化,和分析方法。基于液相色谱及其串联质谱的应用,免疫测定,并概述了电化学方法,以及各种衍生物的使用及其辅助衍生化,以及基于液-液萃取和固相萃取的萃取和纯化技术。还讨论了在甲壳类水产品中实施SEM监测硝基呋喃酮的困难。讨论了可能的新标记和检测它们的方法。最后,总结了目前关于通过其代谢物监测非法呋喃西林使用的研究,并提出了需要通过持续研究克服的潜在问题,以期为未来的研究提供参考。
    The carcinogenic and teratogenic risks of nitrofurazone (NFZ) led to its restriction in aquatic products. Semicarbazide (SEM), one of its metabolites, is a primary focus of modern monitoring techniques. However, the SEM residue in aquatic products is believed to be formed through endogenous mechanisms, especially for aquatic crustaceans. In this article, we will discuss the source of SEM, including its usage as an antibiotic in aquatic products (nitrofurazone), its production during food processing (azodicarbonamide and hypochlorite treatment), its occurrence naturally in the body, and its intake from the environment. SEM detection techniques were divided into three groups: derivatization, extraction/purification, and analytical methods. Applications based on liquid chromatography and its tandem mass spectrometry, immunoassay, and electrochemical methods were outlined, as were the use of various derivatives and their assisted derivatization, as well as extraction and purification techniques based on liquid-liquid extraction and solid-phase extraction. The difficulties of implementing SEM for nitrofurazone monitoring in aquatic products from crustaceans are also discussed. Possible new markers and methods for detecting them are discussed. Finally, the present research on monitoring illicit nitrofurazone usage through its metabolites is summarised, and potential problems that need to be overcome by continuing research are proposed with an eye toward giving references for future studies.
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  • 文章类型: Journal Article
    自2010年以来公布的监测数据虽然有限,表明没有证据表明市场质量的大西洋鲑鱼中的人畜共患寄生虫感染,海洋虹鳟鱼,金头海流,turbot,微薄,大西洋比目鱼,鲤鱼和欧洲鲶鱼。没有发现更大的Amberjack的研究,棕色鳟鱼,非洲鲶鱼,欧洲鳗鱼和长矛。异语女神pegreffii,A.单纯形(s.s.)和Cryptocotylelingua在欧洲海底发现,大西洋蓝鳍金枪鱼和/或鳕鱼,和Tench的假两栖类和副胚乳,在开放的海上网箱或流通池塘或坦克中生产。几乎可以肯定的是,在封闭的再循环水产养殖系统(RAS)或流通设施中生产的鱼,这些鱼具有过滤的水摄入和专门喂养的热处理饲料,没有人畜共患寄生虫。自从EFSA上次的意见以来,紫外线压力和人工消化方法已发展成为ISO标准,以检测鱼类中的寄生虫,而新的紫外线扫描,光学,分子和OMIC技术和方法已经开发用于检测,可视化,鱼中人畜共患寄生虫的分离和/或鉴定。冷冻和加热仍然是杀死渔业产品中寄生虫的最有效方法。高压加工可能适用于某些特定产品。脉冲电场是一种有前途的技术,尽管需要进一步的发展。超声治疗无效。凤尾鱼的传统干盐渍成功灭活了Anisakis。对其他传统工艺的研究-空气干燥和双重盐渍(盐水盐渍加干盐渍)-表明anisakids被成功灭活,但是需要更多的数据来涵盖更多鱼类和产品中的这些和其他寄生虫,以确定这些过程是否总是有效的。与凤尾鱼的腌料组合不能有效地灭活anisakids。天然产品,精油和植物提取物,可能会杀死寄生虫,但缺乏安全性和感官数据。正在开发用于智能内脏和修剪的先进加工技术,以去除鱼类中的寄生虫。
    Surveillance data published since 2010, although limited, showed that there is no evidence of zoonotic parasite infection in market quality Atlantic salmon, marine rainbow trout, gilthead seabream, turbot, meagre, Atlantic halibut, common carp and European catfish. No studies were found for greater amberjack, brown trout, African catfish, European eel and pikeperch. Anisakis pegreffii, A. simplex (s. s.) and Cryptocotyle lingua were found in European seabass, Atlantic bluefin tuna and/or cod, and Pseudamphistomum truncatum and Paracoenogonimus ovatus in tench, produced in open offshore cages or flow-through ponds or tanks. It is almost certain that fish produced in closed recirculating aquaculture systems (RAS) or flow-through facilities with filtered water intake and exclusively fed heat-treated feed are free of zoonotic parasites. Since the last EFSA opinion, the UV-press and artificial digestion methods have been developed into ISO standards to detect parasites in fish, while new UV-scanning, optical, molecular and OMICs technologies and methodologies have been developed for the detection, visualisation, isolation and/or identification of zoonotic parasites in fish. Freezing and heating continue to be the most efficient methods to kill parasites in fishery products. High-pressure processing may be suitable for some specific products. Pulsed electric field is a promising technology although further development is needed. Ultrasound treatments were not effective. Traditional dry salting of anchovies successfully inactivated Anisakis. Studies on other traditional processes - air-drying and double salting (brine salting plus dry salting) - suggest that anisakids are successfully inactivated, but more data covering these and other parasites in more fish species and products is required to determine if these processes are always effective. Marinade combinations with anchovies have not effectively inactivated anisakids. Natural products, essential oils and plant extracts, may kill parasites but safety and organoleptic data are lacking. Advanced processing techniques for intelligent gutting and trimming are being developed to remove parasites from fish.
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