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巢式聚合酶链反应

巢式聚合酶链反应的相关文献在1994年到2018年内共计129篇,主要集中在内科学、临床医学、基础医学 等领域,其中期刊论文125篇、会议论文3篇、专利文献2664980篇;相关期刊86种,包括中国生物学文摘、中华流行病学杂志、中华医学遗传学杂志等; 相关会议3种,包括第二届中国女医师大会、2009年浙江省病理学学术年会、第二届全国现代免疫诊断技术学术研讨会等;巢式聚合酶链反应的相关文献由512位作者贡献,包括郑岩、穆士杰、周灿权等。

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论文:2664980 占比:100.00%

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巢式聚合酶链反应—发文趋势图

巢式聚合酶链反应

-研究学者

  • 郑岩
  • 穆士杰
  • 周灿权
  • 张献清
  • 杨朝国
  • 陈蕤
  • 何忠平
  • 冯铁建
  • 刘镭
  • 卢红艳
  • 期刊论文
  • 会议论文
  • 专利文献

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    • 向芳菲
    • 摘要: 目的 总分析巢式聚合酶链反应检测血清中HBV-DNA对治疗乙肝的临床意义.方法 选取2017年10月-2018年10月本院收治的50例HBV(乙型肝炎病毒)患者,采用ELISA(酶联免疫吸附实验)方法对HBVM进行检测,同时采用nPCR(套式聚合酶链反应)以及FQ-PCR(荧光定量聚合酶链反应)检测所有HBV患者HBV-DNA,分析HBV的复制、活动,同时选定50例本院体检中心的50例体检者.结果 nPCR检测HBV-DNA的阳性率相对较ELISA、FQ-PCR检测高(P<0.05).结论 V病毒采用nPCR检测法进行检测,具有较强的特异性,检出率相对较高,在临床中具有较高的诊断价值.
    • 叶兴东; 高方铭; 曹文苓; 林宏达; 任泽舫
    • 摘要: Objective To investigate the feasibility and prospects of nested real-time PCR(NR-PCR)technique for Treponema palladium(Tp)detection in various samples of different stages of syphilis from patients preliminarily diagnosed as syphilis. Methods Targeting the Tp polA gene, NR-PCR was performed to detect Tp DNA in various samples from the patients with various stages of syphilis at the first clinic visit, including skin tissue fluid swabs, serum, whole blood, cerebrospinal fluid(CSF)and earlobe blood. Data were analyzed with SPSS software version 13. Results A total of 368 clinical samples were collected from 200 patients with syphilis. With a detection limit of 2 Tp/ml, NR-PCR showed that the total positive rate for Tp DNA was 71.7%(264/368). The Tp DNA positive rate was highest in earlobe blood samples (92.0%, 23/25), followed by CSF samples(90.2%, 46/51), skin tissue fluid swabs(74.3%, 26/35), serum samples(66.9%, 99/148)and whole blood samples(64.2%, 70/109). There was good agreement between NR-PCR results and serologic test results, with a consistency rate of 76.0%(152/200). Furthermore, the Tp DNA positive rate did not differ between patients with primary(12/19)and secondary syphilis(14/16)in skin tissue fluid swabs(χ2 = 2.62, P > 0.05), and was slightly but insignificantly higher in patients with secondary syphilis than those with primary syphilis in the serum samples(χ2=3.6, P=0.06). The Tp DNA positive rate of whole blood samples was also higher in patients with secondary syphilis than those with any other types of syphilis. Among patients with neurosyphilis, no significant difference was observed in the Tp DNA positive rate between earlobe blood samples and CSF samples(P=0.06). Among patients with latent syphilis, the Tp DNA positive rate was significantly higher in serum samples with an RPR titer of ≥ 1:8 than those with an RPR titer of≤1:4. Conclusion NR-PCR is feasible for detecting Tp DNA in various kinds of samples, and the Tp DNA positive rate is influenced by stages of syphilis and types of samples, as well as RPR titers.%目的 探讨巢式-实时PCR(NR-PCR)检测初诊梅毒患者不同样本中梅毒螺旋体(Tp)靶DNA的可行性及应用前景.方法 以Tp polA为靶基因,用NR-PCR检测梅毒患者初诊时皮损拭子、血清、全血、脑脊液、末梢耳垂血等样本中的靶DNA,用统计软件SPSS.13分析结果.结果 NR-PCR检测Tp polA靶DNA的极限为2个Tp/ml,总体阳性率为71.7%,检测不同类样本的阳性率从高到低依次为:耳垂血92.0%>脑脊液90.2%>拭子74.3%>血清66.9%>全血64.2%.NR-PCR结果与血清学检查结果的一致性为76.0%(152/200).进一步分析显示:一期、二期梅毒拭子DNA阳性率(63.2%比87.5%)差异无统计学意义(χ2=2.62,P>0.05);血清样本中,二期梅毒DNA阳性率高于一期梅毒(χ2=3.6,P=0.06);全血样本中,二期梅毒DNA阳性率高于其他各类型梅毒;神经梅毒耳垂末梢血阳性率与脑脊液比较,P=0.06.隐性梅毒血清(RPR)滴度≥1:8组的Tp DNA阳性率高于RPR≤1:4组.结论 NR-PCR方法检测梅毒患者不同样本中Tp DNA是可行的,不同类型梅毒、不同类型样本以及其血清RPR滴度水平都影响Tp DNA阳性率.
    • 王红建; 封伟; 张健; 刘殿武
    • 摘要: 目的 研究使用巢式聚合酶链反应检测血清中HBV-DNA对治疗乙肝的临床意义.方法 筛选146例乙型肝炎病毒(HBV)感染者,先采用ELISA检测HBVM作为参照,再分别采用FQ-PCR和nPCR检测参与研究的HBV病人HBV-DNA,并判断HBV的复制和活动情况.另外选择49名健康者作为对照组.结果 PCR模板1和PCR模板4中的HBV-DNA阳性率都很高,PCR模板1中ELISA检测的阳性率与套式聚合酶链反应(nPCR)和实时荧光定量PCR(FQ-PCR)检测HBV-DNA的阳性率差异显著(P<0.05).PCR模板2中ELISA检测阳性率与nPCR和FQ-PCR检测HBV基因的阳性率,无明显差异(P>0.05).nPCR法和FQ-PCR法的结果对比可见,nPCR的阳性率显著高于FQ-PCR,具有明显差异(P<0.05).nPCR的阳性率要比ELISA的阳性率高很多,具有明显差异(P<0.05).ELISA阳性率比对照组高很多,具有明显差异(P<0.05).结论 采用nPCR检测技术诊断HBV疾病的检出率高、特异性强,对HBV疾病的诊断具有很高的实用价值,可在临床推广应用.
    • 施勇; 龚甜; 李健雄; 肖芳; 周珺; 熊英
    • 摘要: 目的 探讨三种实验室检测方法对疟疾检测的应用价值.方法 分别采用传统镜检法、巢式聚合酶链反应(PCR)法及实时荧光(Real-Time)PCR法,对江西省2012年-2014年的61份疟疾疑似病例血样进行检测.结果 巢式PCR法和Real-Time PCR法的结果一致,与镜检结果有17份样本不一致.结论 巢式PCR法和Real-Time PCR法检测疟疾感染具高度敏感性和特异性,对疟疾鉴别诊断和明确诊断具有重要价值.
    • 孙凌聪; 张华勋; 裴速建; 夏菁; 吴冬妮; 林文
    • 摘要: Objective To use the nested PCR technology to diagnose and identify a case of imported Plasmodium ovale wallikeri subspecies .Methods Blood sample was collected from 1 case of initially diagnosed imported tertian malaria and performed the ex‐amination of microscopy ,rapid diagnostic tests (RDTs) and nested‐PCR .Moreover the sequencing was conduced .Results RDTs showed the negative result ;the ring form and trophozoite of Plasmodium could be observed in the blood smear by microscopy ;the Plasmodium ovale wallikeri subspecies specific primer rOVA 1v/rOVA2v was adopted for conducting nested PCR ,the specicific am‐plification band appeared at 760 bp ,after sequencing and Blast aligning ,its coincidence with the partial sequence of Plasmodium ovale wallikeri subspecies in the Genbank database was 99% .Conclusion This patient is the first case of Plasmodium ovale wallik‐eri subspecies infection in Hubei province by nested PCR and sequencing analysis .%目的:应用巢式PCR技术对1例罕见卵形疟原虫wallikeri亚种进行诊断和鉴定。方法采集初诊为输入性间日疟患者血样,进行疟疾快速诊断试剂盒、显微镜镜检和巢式PCR检测,并进行测序分析。结果该患者疟疾快速诊断试剂盒检测阴性;镜检查见寄生于红细胞内的疟原虫环状体和滋养体;采用卵形疟原虫wallikeri亚种特异性引物(rOVA1v/rOVA2v)进行巢式PCR ,在760 bp处有特异性扩增条带,测序后经Blast比对,与GenBank数据库中卵形疟原虫wallikeri亚种部分序列的一致性为99%。结论该患者经巢式PCR和序列分析确诊为湖北省首例卵形疟原虫wallikeri亚种感染。
    • 姚伟容
    • 摘要: 目的:探讨巢式聚合酶链反应(nPCR)检测血清中乙型肝炎病毒(HBV)-DNA对治疗乙型肝炎的临床意义。方法:146名HBV感染者用ELISA检测HBVM作为参照,再分别用FQ-PCR和nPCR检测参与研究的所有HBV患者HBV-DNA,并判断HBV的复制和活动情况。对照组另外选择49名健康者作为对照。结果:模式1和模式4中的HBV基因的阳性率都很高,模式1的阳性率与nPCR和FQ-PCR检测HBV基因的阳性率差距显著(P<0.05)。模式2阳性率与nPCR和FQ-PCR检测HBV基因的阳性率差距不显著(P>0.05)。nPCR法和FQ-PCR法的结果对比可见,nPCR的阳性率显著高于FQ-PCR(P<0.05)。nPCR的阳性率要比ELISA的阳性率高很多(P<0.05)。ELISA阳性率比对照组高很多(P<0.05)。结论:采用nPCR检测技术诊断HBV疾病的检出率高、特异性强,对HBV疾病的诊断具有很高的实用价值。%[ABSTRACT]Objective:To investigate the clinical significance of nested polymerase chain reaction (nPCR) was detected in the sera of hepatitis B virus (HBV) DNA on the treatment of chronic hepatitis B. Methods: 146 patients with HBV were detected by ELISA as a reference, and then FQ-PCR and nPCR were used to detect the HBV-DNA of all HBV patients involved in the study, and to determine the replication and activity of HBV. In control group, the other 49 healthy persons were selected as control group. Results:The positive rate of HBV gene in model 1 and model 4 was very high, the positive rate of model 1 was significant (P0.05), and the positive rate of HBV and FQ-PCR was not significant (nPCR). Compared with the results of nPCR method and FQ-PCR method, the positive rate of nPCR was significantly higher than that of FQ-PCR (P<0.05). The positive rate of nPCR was much higher than that of ELISA (P<0.05). The positive rate of ELISA was much higher than that of control group (P<0.05). Conclusion: The detection rate of HBV is high, the specificity is strong, and it has a high practical value for the diagnosis of HBV disease by using nPCR detection technology.
    • 谯天敏; 张静; 麻文建; 朱天辉; 郑磊
    • 摘要: 桉树焦枯病是威胁桉树生长的首要病害,建立准确、有效的桉树焦枯病巢式聚合酶链反应(polymerase chain reaction, PCR)快速检测技术是桉树焦枯病前期诊断的必要手段.本研究针对柱枝双孢霉(Cylindrocladium scoparium)菌株的β-微管蛋白(beta-tubulin)基因上保守序列极强的靶基因区域序列进行特异性引物BT-S-1/BT-A-1的设计和通用引物BT-T1-S/BT-CYLTUBIR-A的合成,分别利用常规PCR和巢式PCR技术对引物特异性和灵敏度进行检测和比较,同时本研究也对所建立的巢式PCR用于桉树焦枯病原菌快速检测的田间时效性进行验证.试验结果表明:利用beta-tubulin基因序列通用引物BT-T1-S/BT-CYLTUBIR-A对全部供试菌株进行扩增,所有参试菌株均可扩增出1条约500 bp的条带;而单独使用特异性引物BT-S-1/BT-A-1进行常规PCR扩增时仅病原菌能够扩增出1条148 bp的明亮条带;当利用通用引物作为第1轮引物,以稀释10倍后的第1轮PCR产物作为第2轮PCR模板,利用特异性引物进行巢式PCR扩增时,也可扩增出上述148 bp大小的明亮条带,且巢式PCR的扩增效果较常规PCR具有明显的视觉优越性;灵敏度检测试验表明,巢式PCR的灵敏度可检测到5 fg/μL,较常规PCR可以扩增出的极限(DNA质量浓度为5 pg/μL)至少提高了103倍;田间时效检测试验也说明巢式PCR较常规PCR具有更高的准确度和灵敏性,可达到田间检测的要求.本研究建立的巢式PCR检测技术可有效应用于桉树焦枯病的早期诊断.
    • 张利军
    • 摘要: Objective To explore the value of free fetal DNA in maternal plasma on non‐invasive prenatal .Methods A total of 46 pregnancy women were recruited in this study from January 2011 to December 2013 .Column separation method was used to got plasma DNA ,SRY gene was detected by polymerase chain reaction (PCR)technology and ATL1 specific sequence were used to judge the genders of fetuses .Results In 46 cases of pregnant women ,there was 28 cases with male fetuses ,18 cases with female fe‐tuses ,26 male fetuses was amplified with SRY gene by PCR method ,while there was 17 female fetuses was amplified with ATL1 gene .The specificity and sensitivity were 94 .4% (17/18) and 92 .9% (26/28) respectively ,the overall accuracy was 93 .5% (43/46) .Conclusion The sensitivity and specificity of free fetal DNA detection are higher in antenatal examination ,and there is no wound for pregnant women ,could reduce occurrence of adverse events .%目的:探讨孕妇血浆游离胎儿 DNA 检测在无创产前诊断中的价值。方法2011年1月至2013年12月该院46例孕妇作为研究对象,通过柱分离法获得孕妇的血浆 DNA ,并通过聚合酶链反应(PCR)技术对孕妇外周血浆中游离胎儿 DNA 的性别决定基因(SRY)进行检测,并通过 ATL1基因鉴别胎儿的性别。结果46例孕妇中28例产男性婴儿,18例产女性婴儿,其中男性胎儿中的26例能通过 PCR 技术扩增出 SRY 基因,而女性胎儿中有17例经过 PCR 技术扩增出 ATL1基因,其特异度为94.4%(17/18),而灵敏度为92.9%(26/28),检测的总符合率为93.5%(43/46)。结论将孕妇血浆游离胎儿 DNA 检测应用到产前检查检测中,其灵敏度和特异度都较高,且检查过程中无创伤,能减少不良事件的发生概率,值得临床推广和应用。
    • 李明月; 李凌云; 沈曦月; 周帅; 罗笛; 巢嘉婧; 冯纯; 姚堃; 冯东举; 周锋
    • 摘要: 目的:调查人群中人疱疹病毒(HHV),包括人巨细胞病毒(HCMV)、EB病毒(EBV)、HHV-6和 HHV-7的感染情况。方法收集55例南京市无偿献血者的外周血标本,提取全血DNA,巢氏PCR扩增 HCMV、EBV、HHV-6和 HHV-7特异性序列,1%琼脂糖凝胶电泳鉴定。结果55例献血者中 EBV、HCMV、HHV-6和 HHV-7的阳性感染率分别为50.9%、5.5%、49.1%和21.8%,并且存在多种病毒混合感染。结论 HHV筛查对临床相关疾病的诊治具有十分重要的意义,应引起医务工作者的重视。%Objective To investigate the prevalence of four kinds of human herpes viruses (HHV)in the blood of blood donors, including human cytomegalovirus (HCMV),epstein-barr virus (EBV),HHV-6,HHV-7.Methods DNA was prepared in whole blood samples collected from 55 blood donors.The presence of DNA of EBV,HCMV,HHV-6,HHV-7 were examined by specific nested-polymerase chain reaction.Results Prevalence of EBV,HCMV,HHV-6 and HHV-7 in whole blood were 50.9%,5.5%, 49.1% and 21.8% respectively.Multi-infections were observed in some objects.Conclusion The examination of HHV infection is useful in diagnosis and treatment of HHV related disease.
    • 张勤; 侯瑞生; 薛云红; 徐超; 苗丽; 李丽; 王晓梦
    • 摘要: Objective:To develop a multiplex nested PCR method for detecting of P.falciparum, P.vivax, P. ovale,P.malarie and mixed Plasmodium malariae.And to evaluate the application value of multiplex nested PCR in the diagnosis and typing of malaria.In order to supply an effective supplement of microscopic examination for the detection and epidemiology of malaria.Methods: 5 pairs of primers ( 1 pair of universal primers and 4 pairs of specific primers) of the 4 kinds of malarie were designed and synthesized based on the 18 SSU rRNA to develop the multiplex nested PCR.28 blood samles were detected by nested PCR and compare the results with microscopic examination.Results: Nested PCR results showed that 6 samples were mixed Plasmodium malariae infection,consistant with sequencing.Conclusion: We have successfully developed a multiplex nested PCR method for dececting and typing of P.Falciparum, P.Vivax, P.Ovale, P.Malarie and mixed Plasmodium malariae.It shows higher sensitivity and specificity than microscopic examination on detecting and typing of malaria.%目的:应用能够同时检测恶性疟( P.falciparum)、间日疟( P.vivax)、卵形疟( P.ovale)、三日疟( P.malarie)及其混合感染的多重巢式PCR方法,对疑似疟疾混合感染样本进行检测,评价其在疟原虫混合感染及分型中的应用价值,旨在为疟疾流行病学调查、疟疾混合感染的确诊提供一种快速高效、特异性强、灵敏度高的实验室诊断方法,为传统的镜检法提供有效的补充。方法:根据恶性疟原虫、间日疟原虫、卵形疟原虫和三日疟原虫的18 SSU rRNA基因序列设计5对引物(1对通用引物、4对特异性引物),以等比例混合的4种疟原虫核酸为模板,建立疟疾多重巢式PCR检测方法,并应用该法对28份疑似疟疾混合感染样本进行检测及测序验证,将其结果与镜检法比较。结果:28份疑似混合感染样本中混合感染样品数为6例,其中恶性疟和间日疟混合感染样品5例,恶性疟和卵形疟混合感染样品1例。结论:本研究建立的多重巢式PCR检测方法能够同时用于恶性疟、间日疟、卵形疟、三日疟及其混合感染样本的检测,在疟疾混合感染的确诊与分型上较镜检法有明显的优势和更高的应用价值。
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