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Related Experiment Videos

Prenatal paternity testing using DNA extracted from coelomic cells.

George Makrydimas1, Ioannis Georgiou, Vasilios Kranas

  • 1Department of Obstetrics and Gynaecology, Ioannina University Hospital, Ioannina, Greece. grmak@otenet.gr

Fetal Diagnosis and Therapy
|December 4, 2003
PubMed
Summary

Early prenatal paternity testing is possible using coelomic cells obtained via coelocentesis. This new method shows potential for reliable DNA analysis in the first trimester.

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Area of Science:

  • Reproductive genetics
  • Molecular biology
  • Fetal diagnostics

Background:

  • Prenatal paternity testing traditionally relies on invasive procedures like amniocentesis or chorionic villus sampling (CVS).
  • There is a need for earlier and potentially less invasive methods for prenatal genetic analysis.

Purpose of the Study:

  • To evaluate the feasibility of using DNA from coelomic cells for prenatal paternity testing.
  • To explore coelocentesis as an alternative early-first-trimester prenatal diagnostic technique.

Main Methods:

  • Coelocentesis was performed on 20 pregnant individuals between 7-9 weeks of gestation.
  • DNA was extracted from coelomic cells, chorionic villi, and parental blood using standard salt extraction.
  • Paternity testing was conducted using two genetic loci (TPO and Apo B) for DNA analysis.

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Main Results:

  • DNA analysis of coelomic cells demonstrated concordance with results from chorionic villi.
  • The genetic markers used were highly informative for paternity determination.
  • In a small number of cases, the selected polymorphisms were insufficient for definitive paternity exclusion.

Conclusions:

  • Coelomic cells obtained through coelocentesis are a viable source for early prenatal paternity testing.
  • Coelocentesis offers a promising alternative for first-trimester prenatal genetic analysis.