共查询到19条相似文献，搜索用时 246 毫秒
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《中国畜牧兽医文摘》2016,(1)
环介导等温扩增技术(Loop-mediated Isothermal Amplification,简称LAMP)是一种体外等温扩增核酸片段的新技术,利用4条特异性引物,在Bst DNA聚合酶的催化下能够有效地扩增出靶基因。与常规PCR法相比该法具有特异性强、灵敏度高、快速准确以及操作简便等优点,现已广泛应用于动物疾病检测中。此文综述了LAMP技术原理及其在鸡传染性疾病病原检测中的应用,旨在为该技术的深入研究和应用提供参考。 相似文献
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环介导等温扩增技术（LAMP）是由Notomi等于2000年开发的新颖的恒温核酸扩增方法,在等温条件下可高效、快速、高特异、高灵敏地扩增靶序列。1技术特点环介导等温扩增技术特点是针对靶序列的6个特异性区域设计两对引物,利用具有链置换活性的DNA聚合酶在恒温条件下30～60分钟,不需要PCR仪即可实现核酸的大量扩增,并且伴有肉眼可见的副产物白色焦磷酸酶沉淀产生。LAMP的扩增效率是目前最高的一种, 相似文献
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介绍了链置换扩增技术、转录介导扩增技术、核酸序列依赖性扩增技术、环介导等温扩增技术、赖解旋酶恒温基因扩增技术、滚环扩增等六种恒温扩增核酸的技术的特点及其研究应用概况,并对恒温扩增技术的前景予以展望,以期为这些技术的应用提供参考。 相似文献
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病原微生物是威胁畜禽健康的重要因素,严重影响畜牧业的发展,快速、精准的病原微生物检测方法对于保障畜禽健康具有重要意义。环介导等温扩增（loop-mediated isothermal amplification,LAMP）是一种核酸等温扩增技术,具有灵敏度高、反应速度快、操作便捷等特点,原理是针对靶基因的6个区域设计2～3对引物,使用链置换DNA聚合酶即可实现高效扩增。文章对LAMP的反应机制、研究现状以及在动物病原微生物检测中的应用进展进行综述,并对其未来发展进行展望。 相似文献
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Liquid chip technology is a novel biomolecular detection technology which integrates laser technology,flow cytometry,digital signal processing and traditional chemical technology.It is widely used in various immunological analysis and nucleic acid detection.Single and mutiplex analysis are supported,with protein and nucleic acid targets detected in a variety of detection methods in high throughput manner.It has advantages of high throughput,easy operation,wide range of application,good repeatability,high specificity,less sample needed,high sensitivity and stablility,and low cost.Therefore,they are gradually replacing the traditional detection and quantitative pathogen methods,such as Real-time fluorescent quantitative nucleic acid amplification detection system (qPCR),enzyme-linked immunosorbent assay (ELISA) and other detection methods.Animal infectious diseases seriously endanger the development of the breeding industry,futhermore,some zoonoses such as highly pathogenic avian influenza also pose a serious threat to human health.An efficient and sensitive diagnostic system will help to screen a large number of samples during the outbreak of infectious diseases and prevent the spread of infection.The development of liquid chip technology provides a new platform for high-throughput detection and disease prevention.In this review,the principle and advantages of liquid chip technology are briefly described.The research progress of liquid chip technology in the detection of animal infectious diseases,including pigs diseases,poultry diseases,rabbit diseases,dog diseases,rodent diseases and other animal infectious diseases are summarized.We believe that in the future,this technology will become an important analytical and testing tool in clinical diagnosis,basic research,new drug development,judicial identification,food health supervision,biological weapons prevention and other fields.The development of this technology will greatly promote the research and development of life science. 相似文献
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液相芯片技术是整合了激光技术、流式细胞仪、数字信号处理和传统化学技术的一种新型生物分子检测技术,目前广泛应用于各种免疫分析和核酸检测中。液相芯片技术支持单重和多重分析,可在多种测定方法中对蛋白质和核酸靶标进行高通量检测,具有高通量、操作简单、适用范围广、重复性好、特异性高、所需样品量少、更灵敏稳定、成本低等优点,正逐渐代替传统检测和定量病原体的工具,如实时荧光定量PCR扩增检测系统（qPCR）、酶联免疫吸附试验（ELISA）等检测方法。动物传染病严重危害着养殖业健康发展,一些诸如高致病性禽流感的人畜共患病对人类健康造成了严重威胁。高效灵敏的诊断系统将有助于在传染病暴发期间筛选大量样本,防止感染扩散。液相芯片技术的发展为高通量检测和疾病的预防提供了新的平台。作者简要概述了液相芯片技术的原理和优点,重点阐述了液相芯片技术在检测动物疫病,包括猪病、禽病、兔病、犬病、啮齿类动物和其他动物疫病方面的研究进展。相信今后液相芯片技术会成为临床诊断、基础研究、新药开发、司法鉴定、食品卫生监督、生物武器防范等领域的一项重要分析检测技术,该技术的发展将大大推动生命科学研究与进步。 相似文献
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近年来,犬瘟热已严重危害了犬及毛皮动物养殖业的健康发展,快速、准确的诊断技术对于犬瘟热的预防显得尤为重要。现阶段犬瘟热诊断技术的研究主要有病毒分离培养与镜检观察、酶联免疫吸附试验(ELISA)、免疫组化、免疫胶体金、核酸杂交、巢式RT-PCR、实时荧光定量RT-PCR、双重PCR、基因芯片、液相芯片、环介导等温扩增等。获得能产生典型细胞病变的易感细胞株是成功进行犬瘟热病毒分离培养与镜检观察的关键。作者就犬瘟热诊断技术的研究进展作一综述,为有效预防和控制犬瘟热的流行和暴发提供简便、高效的检测技术。 相似文献
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In recent years, canine distemper is a serious damage to health development of dog and fur animal breeding industry.Fast and accurate diagnostic technique is particularly important for canine distemper prevention.At the present stage, canine distemper diagnostic techniques mainly include virus isolation, culture and microscopy observation, enzyme-linked immunosorbent assay(ELISA), immunohistochemistry, immune colloidal gold technique, nucleic acid hybridization technique, nested RT-PCR, Real-time fluorescence quantitative RT-PCR, double PCR, gene chip technology, liquid phase chip technology, loop-mediated isothermal amplification technology, and so on.The key of isolation, culture and microscopy observation of canine distemper virus is to obtain a susceptible cell lines that can produce typical CPE.We review research progress on diagnostic techniques of canine distemper, so as to provide simple and highly effective detecting technique for preventing and controlling epidemic and outbreak of canine distemper. 相似文献
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本研究利用3种方法对新城疫病毒(Newcastle disease virus,NDV)进行检测,并对这3种检测方法的灵敏度和特异性作出比较。根据新城疫病毒的融合蛋白基因(F基因)设计合成6条特异性引物,利用水浴LAMP法、PCR及LAMP实时浊度仪进行检测。通过对恒温水浴中的反应温度、反应时间及反应液中Mg2＋浓度进行优化获得最佳反应条件,结果用凝胶电泳分析;用优化的温度进行LAMP实时浊度仪检测,同时都与PCR方法进行比较。结果显示,获得了最佳反应条件,水浴LAMP方法最低检测限是1.58 pg,比PCR高100倍,而LAMP实时浊度仪检测灵敏度比水浴LAMP方法高10倍,最低检测限是0.158 pg。3种方法对其他非新城疫病毒均无检出。结果表明,新城疫病毒水浴LAMP检测方法速度快、不需要高精密的仪器,而且具有灵敏度高、特异性强、操作简单等特点,有望在核酸扩增领域取代PCR技术,LAMP浊度仪法检测灵敏度更高,但是所需仪器和试剂比较昂贵。 相似文献