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Related Concept Videos

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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Related Experiment Video

Updated: May 24, 2025

qPCR Is a Sensitive and Rapid Method for Detection of Cytomegaloviral DNA in Formalin-fixed, Paraffin-embedded Biopsy Tissue
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Performance evaluation of NeuMoDx 96, a random access system for CMV DNA quantitation.

Priyanka Sharma1, Ekta Gupta1, Guresh Kumar2

  • 1Department. of Clinical Virology, Institute of Liver and Biliary Sciences, India.

Diagnostic Microbiology and Infectious Disease
|March 6, 2025
PubMed
Summary

The NeuMoDx 96 platform accurately detects Cytomegalovirus (CMV) DNA in immunocompromised patients. This rapid CMV testing method shows high sensitivity and specificity, aiding timely clinical decisions.

Keywords:
CMV DNA measurementCMV DNAemiaCytomegalovirusDiagnostic accuracyNeuMoDx 96 platformPost-transplant InfectionQuantitative PCR (qPCR)

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Area of Science:

  • Virology
  • Clinical Diagnostics
  • Molecular Biology

Background:

  • Cytomegalovirus (CMV) infection is a major threat to immunocompromised individuals, especially after transplantation.
  • Early and precise quantification of CMV DNA is critical for effective patient management and preventing severe outcomes.
  • Current diagnostic methods, often batch-based, may not offer the rapid turnaround needed for critically ill patients.

Purpose of the Study:

  • To evaluate the diagnostic performance of the NeuMoDx 96 random-access CMV assay.
  • To compare the NeuMoDx 96 assay against the established COBAS® AmpliPrep/COBAS® TaqMan® CMV assay.
  • To assess the NeuMoDx 96 assay's concordance with the World Health Organization (WHO) International Standard for CMV.

Main Methods:

  • Retrospective analysis of 104 archived plasma samples.
  • Comparison of the NeuMoDx 96 CMV assay with the COBAS® AmpliPrep/COBAS® TaqMan® CMV assay.
  • Quantification using the WHO International Standard for CMV for calibration and validation.

Main Results:

  • The NeuMoDx 96 assay demonstrated high diagnostic accuracy, with 98.2% sensitivity and 100% specificity compared to the COBAS® assay.
  • Excellent concordance was observed between the NeuMoDx 96 assay results and the WHO International Standard for CMV.
  • The NeuMoDx 96 platform offers a rapid and potentially cost-effective alternative for CMV DNA quantification.

Conclusions:

  • The NeuMoDx 96 platform is a reliable and accurate tool for CMV DNA detection in clinical settings.
  • This random-access assay can facilitate faster clinical decision-making for managing CMV infections in vulnerable patient populations.
  • Further validation across diverse clinical environments is recommended to broaden the application of this rapid diagnostic technology.