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相关概念视频

Real Time RT-PCR02:57

Real Time RT-PCR

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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...
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通过分子均衡扩大生物标记物量化的动态范围.

Sharon S Newman1,2, Brandon D Wilson3,4, Daniel Mamerow2,4

  • 1Department of Bioengineering, Stanford University, Stanford, CA, 94305, USA.

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概括

这项研究介绍了EVROS,这是一种用于多重生物标志物定量化的新策略. 在小型血清样本中,EVROS能够在广泛的动态范围内对各种分析物的敏感和准确检测.

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科学领域:

  • 生物化学 生物化学
  • 分析化学 分析化学
  • 生物技术是生物技术.

背景情况:

  • 精准医学需要可扩展的多重生物标志物量化.
  • 与人体等离子体蛋白质相比,当前的方法具有有限的动态范围 (大小3到4级) (>10级).
  • 现有的技术,如样本分割和稀释,阻碍了可复制性和可扩展性.

研究的目的:

  • 开发一种用于在广泛度范围内同时量化分析物的方法.
  • 为了克服当前生物标志物检测方法的动态范围限制.
  • 为了提高多重测定中的可扩展性和可重复性.

主要方法:

  • 开发了一种名为"EVROS"的双方向策略,以平衡分析信号强度.
  • 埃弗罗斯策略应用于近距离结合试验.
  • 进行了四种分析物的同时量化.

主要成果:

  • 从低女性分子度到中等纳米分子度实现了分析物的同时量化.
  • 在单个5μl未稀释的人类血清样本中显示出七个数量级的动态范围.
  • 成功地将EVROS策略应用于近距离结合试验.

结论:

  • 埃弗罗斯的策略能够以高度多重的方式对各种分析物的敏感和准确检测.
  • 这种方法显著扩大了生物标志物量化中可实现的动态范围.
  • 为需要广泛分析物检测的精密医学应用提供可扩展的解决方案.