您现在的位置: 首页> 研究主题> 二重PCR

二重PCR

二重PCR的相关文献在2001年到2022年内共计93篇,主要集中在畜牧、动物医学、狩猎、蚕、蜂、分子生物学、基础医学 等领域,其中期刊论文56篇、会议论文1篇、专利文献466624篇;相关期刊35种,包括生态科学、生物技术通报、生物技术通讯等; 相关会议1种,包括中国畜牧兽医学会兽医公共卫生学分会成立大会暨第一次学术研讨会等;二重PCR的相关文献由393位作者贡献,包括谢丽基、谢志勤、谢芝勋等。

二重PCR—发文量

期刊论文>

论文:56 占比:0.01%

会议论文>

论文:1 占比:0.00%

专利文献>

论文:466624 占比:99.99%

总计:466681篇

二重PCR—发文趋势图

二重PCR

-研究学者

  • 谢丽基
  • 谢志勤
  • 谢芝勋
  • 邓显文
  • 刘加波
  • 范晴
  • 庞耀珊
  • 张艳芳
  • 罗思思
  • 黄娇玲
  • 期刊论文
  • 会议论文
  • 专利文献

搜索

排序:

年份

    • 段新华; 郑文新; 陶卫东; 周喜荣; 张敏; 采复拉·大木拉
    • 摘要: 为筛选和建立准确、快速、敏感的牛病毒性腹泻病毒(BVDV)检测方法,根据BVDV基因序列高度保守的5'UTR区,合成1对特异引物,从疑似BVDV感染的个体牛血清中提取RNA作为模板,采用二重PCR方法,获得252 bp特异性扩增产物,以此鉴别是否感染BVDV.结果表明,用该方法对同一牛场混合血清样品进行检测,发现该牛场存在BVDV感染.实验证明,该方法检测牛群是否感染BVDV,简单、快速、灵敏,且经济、方便、实用,在牛群BVDV检疫中具有较好的实用价值.
    • 吴震洋; 李丽; 安清明; 冉辉; 陆龙波
    • 摘要: 为能快速灵敏的检测羊捻转血矛线虫病,试验采用微卫星DNA分子标记对羊捻转血矛线虫进行二重PCR扩增.对反应条件和体系的优化,筛选出2组可用以鉴定羊捻转血矛线虫的微卫星DNA组合.结果表明:PCR条带清晰、与预期片段大小吻合.试验建立了快速准确识别羊捻转血矛线虫的分子鉴定方法,为羊捻转血矛线虫病的快速检测和诊断提供依据.
    • 李慧洁; 蒋会敏; 贾小同; 李小艳; 王利娜; 尹皓月; 李铀
    • 摘要: 在建立单重PCR的基础上成功建立了多种二重PCR体系,以同时检测2种肉源成分(猪、牛、鸡和羊).PCR扩增的是每种动物的线粒体基因,由于鸡、羊的PCR扩增片段大小过于接近(131和119 bp),电泳图上不易区分,故试验中的二重PCR体系使用了5种动物组合.所建立的二重PCR方法能够迅速、稳定地同时鉴别2种肉源性成分,为下一步建立三重或四重PCR方法奠定了良好的基础.
    • 李慧洁; 蒋会敏; 贾小同; 李小艳; 王利娜; 尹皓月; 李铀
    • 摘要: 在建立单重PCR的基础上成功建立了多种二重PCR体系,以同时检测2种肉源成分(猪、牛、鸡和羊)。PCR扩增的是每种动物的线粒体基因,由于鸡、羊的PCR扩增片段大小过于接近(131和119 bp),电泳图上不易区分,故试验中的二重PCR体系使用了5种动物组合。所建立的二重PCR方法能够迅速、稳定地同时鉴别2种肉源性成分,为下一步建立三重或四重PCR方法奠定了良好的基础。
    • 武迪; 陈世玖; 王成; 龙航; 杨军; 刘珑玲
    • 摘要: 目的 建立一种能同步检测鉴定海分枝杆菌和溃疡分枝杆菌的二重PCR方法,为手部及皮肤软组织感染海分枝杆菌和溃疡分枝杆菌早期诊断、早期治疗服务.方法 通过GeneBank数据库和文献查找海分枝杆菌和溃疡分枝杆菌的特有基因序列,设计2对能扩增海分枝杆菌和溃疡分枝杆菌特有序列的引物,建立能同步检测鉴定海分枝杆菌和溃疡分枝杆菌的二重PCR,特异性及敏感性.并初步应用该二重PCR检测鉴定19份临床考虑上肢感染NTM的标本.结果 本研究成功地建立能同步检测鉴定海分枝杆菌和溃疡分枝杆菌的二重PCR,扩增产物的长度海分枝杆菌为429 bp,溃疡分枝杆菌为240 bp,检测其他非结核分枝杆菌时未出现阳性条带,敏感性试验最低可检测出0.508 pg/μl海分枝杆菌,44.8 fg/μl溃疡分枝杆菌.检测鉴定19份临床标本,42.1%(8份)为海分枝杆菌感染,15.8%(3份)为溃疡分枝杆菌感染,42.1%(8份)未检出病原菌.结论 本研究建立的二重PCR可早期、快速地诊断手部及皮肤软组织感染海分枝杆菌和溃疡分枝杆菌,为临床制定最佳治疗方案提供一定依据.%Objective To establish a duplex PCR method that can synchronously detect and identify Mycobacterium marinum and Mycobacterium ulcerans in order to detect and treat soft tissue infections of the arms and skin from these mycobacteria at an early stage. Methods The specific gene sequences for Mycobacterium marinum and Mycobaterium ulcerans were searched from the GeneBank and the available literature, and NCBI/Primer-BLAST software and MFEPrimer-2.0 software were utilized to design two pairs of primers that could amplify the specific gene sequences of Mycobacterium marinum and Mycobacterium ulcerans. A duplex PCR was to be established to synchronously detect and identify Mycobacterium marinum and Mycobacterium ulcerans, and its optimal annealing temperature, specificity and sensitivity were explored. Then this duplex PCR was preliminarily applied to identify 19 specimens of clinically-considered non-tuberculosis mycobacteria infections (NTM) of the upper limbs. Results This study successfully established a duplex PCR that can synchronously detect and identify Mycobacterium marinum and Mycobacterium ulcerans. The length of amplified product of Mycobacterium marinum was 429 bp and that of Mycobacterium ulcerans was 240 bp at an optimal annealing temperature of 62.7°C . Positive bands did not appear when other NTM were detected. The lowest detectable level was 0.508 pg/μl for Mycobacterium marinum, and 44.8 fg/μl for Mycobacterium ulcerans. In the 19 clinical specimens, Mycobacterium marinum infection was detected and identified in 8 (42.1%), Mycobacterium ulcerans in 3 (15.8%) and pathogenic bacteria were not detected in 8 (42.1%). Conclusions The duplex PCR established in this study can quickly diagnose Mycobacterium marinum and Mycobacterium ulcerans infections of the soft tissue of the arms and skin at an early stage, providing a basis for clinical formulation of the optimal treatment plan.
    • 李海利; 郎利敏; 王克领; 邓祖丽颖; 徐引弟; 王治方; 张青娴; 朱文豪; 方剑玉; 游一; 侯自花
    • 摘要: 为建立猪肺炎支原体与猪鼻支原体的鉴别诊断方法,对从河南省及周边地区猪场采集的患呼吸道疾病的猪只样品进行支原体的分离培养,针对猪肺炎支原体与猪鼻支原体设计了2对引物,扩增片段大小分别为480 bp和360 bp,对所分离纯化的病原微生物进行了菌落形态观察及分子鉴定.结果显示,分离的病原微生物为支原体,菌落呈典型的“煎蛋样”特征;通过单一PCR扩增反应,分别得到了猪肺炎支原体与猪鼻支原体相应的目的扩增片段.表明分离到了猪肺炎支原体与猪鼻支原体.在单一扩增的基础上,建立了猪肺炎支原体与猪鼻支原体二重PCR反应方法,可同时得到2条目的条带,与单一PCR扩增结果一致.表明建立的二重PCR方法可用于猪肺炎支原体与猪鼻支原体的同时检测和鉴别诊断.%In order to develop differential diagnosis method of Mycoplasma hyosynoviae and Mycoplasma hyorhinis,Mycoplasma was isolated and identified from Henan province and surrounding areas.Two pairs of primers were designed to amplify Mycoplasma hyosynoviae and Mycoplasma hyorhinis DNA and the fragment sizes were 480 bp and 360 bp respectively.The results showed that the colony was a typical "fried egg" characteristic.The single amplified PCR showed that the isolated microbes were Mycoplasma hyosynoviae and Mycoplasma hyorhinis.On the basis of single amplification,the double PCR reaction was established for detecting Mycoplasma hyosynoviae and Mycoplasma hyorhinis.The double PCR method could be used for detection and differential diagnosis of Mycoplasma hyosynoviae and Mycoplasma hyorhinis.
    • 何莹; 张艳芳; 谢芝勋; 罗思思; 李孟; 谢丽基; 邓显文; 谢志勤; 奉彬; 黄娇玲
    • 摘要: 为建立一种能同时鉴别诊断禽流感病毒(avian influenza virus,AIV)和鸡细小病毒(chicken parvovirus,ChPV)的检测方法,本研究根据GenBank中AIV 的M基因和ChPV 的NS基因保守序列,分别设计并筛选出两对特异性引物,用于AIV和ChPV的检测.通过优化反应条件,建立了AIV和ChPV二重PCR检测方法.试验结果表明,该方法特异好,能同时检测AIV和ChPV,对其他常见的禽病病原体均未反应;该法对AIV和ChPV的检测下限均为100 fg;对159份临床样品检测结果与PCR阳性产物测序结果一致.本研究建立的AIV和ChPV二重PCR检测方法具有特异性好、灵敏度高的特点,对 AIV 和ChPV的防制具有重要意义.%In order to establish a method to simultaneously detect avian influenza virus (AIV) and chicken parvovirus (ChPV),two pairs of specific primers were designed according to the sequences of AIV M gene and ChPV NS gene in GenBank.The duplex PCR assay was established by optimizing the reaction conditions.The tests showed that this method had high specificity, could simultaneously detect AIV and ChPV and no specific band was amplified for other subtypes avian pathogenic virus.The sensitivity result showed that the lower detection limit of this method was 100 fg.The results of 159 clinical samples were consistent with the sequencing results of PCR positive product.The double PCR methods for detection of AIV and ChPV established in this study had the characteristics of good specificity and high sensitivity, which was of great significance to the prevention control of AIV and ChPV.
    • 奉彬; 谢丽基; 曾婷婷; 罗思思; 刘加波; 谢芝勋; 邓显文; 张艳芳; 黄娇玲; 王盛; 范晴; 谢志勤; 黄莉
    • 摘要: A duplex PCR assay for detecting both chicken parvovirus (ChPV)and avian reoviruses (ARV) was developed to provide technical support for effective control of ChPV and ARV.According to the con-served gene sequences of ChPV NS1 and ARVσC in GenBank,two sets of specific primers were designed. The duplex PCR for simutaneous detection of ChPV and ARV was established by optimizing the reaction conditions.The optimized PCR reaction system was 2×PCR Mix 12.5 μL,of which sense primer and anti-sense primer of ChPV and ARV was 1.0 μL each.The mixed template was 2.0 μL and added to 25.0 μL with ddH2 O.The optimal reaction procedure was 95 °C initial denaturation for 5 min;95 °C degeneration for 1 min,56.1 °C annealing for 1 min,72 °C for 1 min in 35 cycles;72 °C extension for 10 min.The result indicated that the duplex PCR assay successfully amplified 204 bp for ChPV,405 bp for ARV.The sensitiv-ity of the assay was 58 fg for ChPV and 53 fg for ARV,but it was not sensitive to other chicken pathogens, such as Newcastle disease virus,H9 subtype avian influenza virus,Marek′s disease virus,infectious bron-chitis virus,infectious laryngotracheitis virus.The results detected by the duplex PCR had a 94% coinci-dence rate with the results detected by single PCR for the ChPV and ARV respectively.The duplex PCR assay is a quick,sensitive and specific test for detection of ChPV and ARV.%建立可同时检测鸡细小病毒(Chicken parvovirus,ChPV)与禽呼肠病毒(Avian reovirus,ARV)的二重 PCR 方法,为防控 ChPV 与 ARV 提供技术支撑。根据鸡细小病毒 NS1基因和禽呼肠病毒σC 基因的保守序列,设计合成两对引物用于检测 ChPV 和 ARV,通过优化二重 PCR 的反应体系,特异性、敏感性试验评价建立的 ChPV 与 ARV 二重 PCR。优化后的二重 PCR 反应体系为:2× PCR Mix 12.5μL,其中ChPV 与 ARV 的上、下游引物各1.0μL,混合模板2.0μL,ddH2 O 补足25μL;最佳的反应程序为:95°C5 min;95°C1 min,56.1°C1 min,72°C1 min,35个循环;最后72°C延伸10 min。结果显示,建立的二重 PCR能够同时扩增出204 bp ChPV 和405 bp ARV 片段;该方法对 ChPV 与 ARV 的检测敏感性分别达到58 fg和53 fg,但对鸡新城疫病毒、H9亚型禽流感病毒、马立克病病毒、鸡传染性喉气管炎病毒、鸡传染性支气管炎病毒等病原体均无特异性扩增,对 ChPV 与 ARV 混合感染的临床阳性病料的检测结果与各病毒单项PCR 检测结果符合率为94%以上。建立的二重 PCR 可用于 ChPV 与 ARV 感染的快速鉴别诊断。
  • 查看更多

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号