Quality control standards in PGD and PGS

Reproductive Biomedicine Online
Sioban B SenguptaJoyce Harper

Abstract

Preimplantation genetic diagnosis (PGD) aims to test the embryo for specific conditions before implantation in couples at risk of transmitting genetic abnormality to their offspring. The couple must undergo IVF procedures to generate embryos in vitro. The embryos can be biopsied at either the zygote, cleavage or blastocyst stage. Preimplantation genetic screening uses the same technology to screen for chromosome abnormalities in embryos from patients undergoing IVF procedures as a method of embryo selection. Fluorescence in-situ hybridization was originally used for chromosome analysis, but has now been replaced by array comparative genomic hybridization or next generation sequencing. For the diagnosis of single gene defects, polymerase chain reaction is used and has become highly developed; however, single nucleotide polymorphism arrays for karyomapping have recently been introduced. A partnership between IVF laboratories and diagnostic centres is required to carry out PGD and preimplantation genetic screening. Accreditation of PGD diagnostic laboratories is important. Accreditation gives IVF centres an assurance that the diagnostic tests conform to specified standards. ISO 15189 is an international laboratory standard specifi...Continue Reading

References

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Jul 13, 2011·Human Genetics·Joyce C Harper, Sioban B Sengupta
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Aug 1, 2012·Expert Review of Molecular Diagnostics·Sioban B SenGupta, Joy D A Delhanty
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Mar 10, 2015·Fertility and Sterility·Matheus RoqueSelmo Geber

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Citations

Jan 24, 2017·Expert Review of Molecular Diagnostics·Joanne Traeger-Synodinos, Cornelis L Harteveld
Dec 1, 2017·Gender and the Genome·Tetsuya Ishii, César Palacios-González
Nov 12, 2020·Journal of Assisted Reproduction and Genetics·Phillip A RomanskiCatherine Racowsky
Sep 26, 2020·Reproductive Biomedicine Online·Megan Bunnell, Navid Esfandiari
Nov 20, 2020·Journal of Patient Safety·Carleigh NesbitNavid Esfandiari

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