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Related Experiment Videos

Circulating nucleic acids in plasma and serum: recent developments.

R Swaminathan1, Asif N Butt

  • 1Department of Chemical Pathology, 5th Floor, North Wing, St Thomas' Hospital, Lambeth Palace Road, London, SE1 7EH, UK. r.swaminathan@kcl.ac.uk

Annals of the New York Academy of Sciences
|November 17, 2006
PubMed
Summary
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Circulating nucleic acids (DNA and RNA) in body fluids offer new diagnostic tools for diseases like cancer and pregnancy monitoring. Further research is needed to standardize methods and understand their biological significance.

Area of Science:

  • Biochemistry
  • Molecular Biology
  • Clinical Diagnostics

Background:

  • Nucleic acids (DNA and RNA) are present in various body fluids of healthy individuals and patients.
  • Detection and quantification of circulating nucleic acids have advanced disease diagnosis and monitoring.
  • Recent discoveries in epigenetic changes and specific RNA detection enhance applications in prenatal diagnostics.

Purpose of the Study:

  • To explore the diagnostic and monitoring potential of circulating nucleic acids.
  • To highlight advancements in detecting specific nucleic acid sequences in complex biological samples.
  • To discuss the expanding applications of circulating nucleic acids in various medical fields.

Main Methods:

  • Detection and quantification of specific DNA and RNA sequences in plasma, serum, and urine.

Related Experiment Videos

  • Application of mass spectrometry and other sensitive techniques for low-abundance nucleic acid detection.
  • Analysis of epigenetic modifications and specific RNA markers.

    • Main Results:

    • Circulating nucleic acids are valuable biomarkers for prenatal testing, oncology, diabetes mellitus, trauma, stroke, and myocardial infarction.
    • Advanced techniques enable the detection of specific DNA mutations (e.g., fetal DNA in maternal circulation).
    • Tumor-derived nucleic acids facilitate cancer detection and monitoring.

    Conclusions:

    • Circulating nucleic acids represent a significant advancement in non-invasive diagnostics and disease monitoring.
    • Standardization of pre-analytical and analytical procedures is crucial for clinical implementation.
    • Further research is required to elucidate the origin and biological roles of circulating nucleic acids.