Prenatal Diagnostics on Uncultured Amniocytes

  • Bernd EibenEmail author
  • Ralf Glaubitz
  • Arens Hans-Jürgen
Part of the Springer Protocols Handbooks book series (SPH)

Fluorescence in situ hybridization (FISH) in prenatal diagnostics permits the demonstration of certain numeric chromosomal aneuploidies in amniotic cells within 24h, in contrast to conventional methods, which take 1–3 weeks. The experience of using this FISH method has been compared to standard karyotyping. FISH on uncultured amniocytes was performed from 12 weeks of gestation to the third trimester using commercially available chromosome-specific DNA probes for chromosomes 13, 18, 21, X and Y. FISH was performed successfully in nearly 10,000 prenatal cases. All of the trisomies 13, 18 and 21 and all cases with gonosomal aberrations were detected by FISH analysis. No false-positive results were obtained using FISH. For all analyzable disorders, the FISH results were in complete agreement with standard cytogenetics. In our experience, FISH is a valuable and reliable method for the rapid diagnosis of numeric chromosomal aneuploidies (Quick Test).


Amniotic Fluid External Quality Control Chromosome Mosaicism Quick Test Amniotic Cell 
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We would like to thank Barbara Heite, Bettina Kaufmann, Miriam Didzun, Witolt Trawicki and the genetic team of our Institute in Essen for their excellent work and technical contributions.


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Copyright information

© Springer-Verlag Berlin Heidelberg 2009

Authors and Affiliations

  • Bernd Eiben
    • 1
    Email author
  • Ralf Glaubitz
    • 1
  • Arens Hans-Jürgen
    • 2
  1. 1.Institut für Laboratoriumsmedizin und klinische Genetik Nordrhein und Labor wagnerstibbeEssenGermany
  2. 2.Abbott MolecularAbbott GmbH & Co. KGWiesbadenGermany

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