常见的实验室有机溶剂是使用PCR进行RNA病毒分子检测的更好的介质
Pinky Singh1, Mohammed Tabrez Banegar2, Royston A Lobo3
1Department of Clinical Pathology, Haffkine Institute, Mumbai, India.
Indian journal of medical microbiology
|April 24, 2024
概括
甲醇有效地保存病毒RNA用于分子诊断,在呼吸道病毒爆发期间为商业病毒传输媒介提供了稳定和经济的替代方案.
科学领域:
- 病毒学 病毒学
- 分子诊断学 分子诊断学
- 公共卫生 公共卫生
背景情况:
- 在呼吸道病毒感染流行病期间,商业病毒传输媒介 (VTM) 的稀缺性构成了医疗保健方面的重大挑战.
- 替代样品保存方法至关重要,以确保诊断结果的有效性,当VTM是不可用的.
研究的目的:
- 评估和验证使用常见的医院溶剂作为商业VTM的经济和易于获得的替代品.
- 确定病毒RNA在各种溶剂中的稳定性,用于分子检测.
主要方法:
- 流感病毒 (pH1N1) 和SARS-CoV-2 RNA被添加到乙醇,乙和甲醇中,并与商业VTM相比较.
- 样品在室温下储存了24小时,48小时和72小时.
- 使用实时RT-PCR (qRT-PCR) 进行病毒基因检测,Ct值进行统计分析.
主要成果:
- 流感和SARS-CoV-2的病毒RNA在室温下在测试溶剂中保持稳定长达3天.
- 在不同的时间点中,Ct值始终保持一致,这表明病毒样本的有效保存.
结论:
- 甲醇显示出作为VTM替代品的最大潜力,显著提高病毒RNA稳定性.
- 这一发现支持使用甲醇来改善在资源有限的环境中改善呼吸道病原体的分子诊断.
相关概念视频
01:24DNA Isolation
DNA isolation protocols can be fast and straightforward or complex and time-consuming depending on the type and quality of DNA required for further processing. For example, plasmid DNA extraction is a bit more complicated than genomic DNA extraction because of the need for an appropriate lysis method to separate plasmid DNA from gDNA during isolation. However, for specific applications, such as long-range DNA sequencing that require a good yield of high- quality DNA samples, we need to follow...
01:32PCR - Polymerase Chain Reaction
Overview
02:57Real 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...
The real-time quantification of the number of amplified products is...