相关实验视频

Updated: Jul 28, 2025

Multiplex Detection of Bacteria in Complex Clinical and Environmental Samples using Oligonucleotide-coupled Fluorescent Microspheres

Multiplex Detection of Bacteria in Complex Clinical and Environmental Samples using Oligonucleotide-coupled Fluorescent Microspheres

Published on: October 23, 2011

开发和验证一种用于完全自动化分子系统的细菌胃肠多重RT-PCR试验

Jasmin Köffer¹, André Frontzek², Ulrich Eigner¹

¹Labor Limbach, Heidelberg, Germany.

Journal of microbiological methods

|June 1, 2023

概括

一个新的多重实时PCR面板为检测关键细菌便病原体提供了快速可靠的方法. 这种先进的测试有效地取代了传统的诊断,提高了临床实验室的效率.

科学领域:

临床微生物学临床微生物学
分子诊断学分子诊断学
传染性疾病传染性疾病

背景情况:

传统的便诊断是耗时和劳动密集的.
需要快速准确的方法来检测细菌肠道病原体.
多重复合PCR为高通量病原体检测提供了一个有希望的替代方案.

研究的目的:

开发和验证非商业多重实时PCR面板,用于检测主要细菌便病原体.
用高通量分子方法取代繁重的表型便诊断.
为了在cobas 6800系统的开放公用事业通道上实施测试.

主要方法:

设计的原料和探针的目标是保存的基因组区域的沙门氏菌 spp.,Shigella spp.,Yersinia enterocolitica/伪结核病,和Campylobacter jejuni/coli.
使用Ultramer寡核酸,阳性便物质和参考菌株进行验证.
分析灵敏度,特异性,交叉反应性,线性,变异性和检测极限 (LOD) 的评估.
745个本地便样本的回顾性分析,将PCR结果与培养方法进行比较.

主要成果:

多重PCR试验证明了在5-log单位范围内的线性,具有高放大效率 (94.6%120%).
观察到可重复率 (≤1.11%),中等精度 (≤1.02%) 和总方差 (≤1.39%) 的优异系数.
分析灵敏度显示检测极限较低 (7.8314.4副本/反应).
该试验与培养方法达成了很好的一致性 (>95%),在解决差异后,具有100%的灵敏度和特异性.

结论:

开发的多重实时PCR试验是一种全面,快速和敏感的替代传统方法.
它可以在诊断实验室有效检测主要细菌便病原体.
在cobas 6800系统上测试的性能可促进高通量分子诊断.

关键词:

细菌性便病原体的病原体这是坎比洛巴克特菌.检测检测检测检测检测分子方法分子方法.沙门氏菌是一种沙门氏菌.石格蕾拉 (Shigella) 是一种植物.耶尔西尼亚尼亚是什么意思

更多相关视频

One-day Workflow Scheme for Bacterial Pathogen Detection and Antimicrobial Resistance Testing from Blood Cultures

One-day Workflow Scheme for Bacterial Pathogen Detection and Antimicrobial Resistance Testing from Blood Cultures

Published on: July 9, 2012

Multiplex PCR Assay for Typing of Staphylococcal Cassette Chromosome Mec Types I to V in Methicillin-resistant Staphylococcus aureus

Multiplex PCR Assay for Typing of Staphylococcal Cassette Chromosome Mec Types I to V in Methicillin-resistant Staphylococcus aureus

Published on: September 5, 2013

相关概念视频

Real Time RT-PCR

Real Time RT-PCR

Real-time reverse transcription-polymerase chain reaction, or Real-time RT-PCR, is an analytical tool used to determine the expression level of target genes. The method involves converting mRNA to complementary DNA with the help of an enzyme known as reverse transcriptase, followed by the PCR amplification of the cDNA. These two processes can be performed simultaneously in a single tube or separately as a two-step reaction.
The real-time quantification of the number of amplified products is...

Modern Molecular Taxonomy

Modern Molecular Taxonomy

Advancements in molecular biology have revolutionized the identification and characterization of bacteria, with multiple methods leveraging DNA sequencing for enhanced precision. As sequencing technologies improve and costs decline, these approaches are increasingly used in clinical, environmental, and evolutionary studies.Multilocus Sequence Typing (MLST) examines several housekeeping genes, essential chromosomal genes encoding cellular functions, to distinguish strains. Approximately...