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In Vivo Modeling of the Morbid Human Genome using Danio rerio
Published on: August 24, 2013
Singling out genetic disorders and disease.
1Centre for Medical Genetics, Universitair Ziekenhuis Brussel, Laarbeeklaan 101, Brussels, Belgium. martine.derycke@uzbrussel.be.
Genome Medicine
|October 8, 2010
Summary
Preimplantation genetic diagnosis (PGD) offers an alternative to prenatal testing by screening embryos for genetic conditions before transfer. Current data show PGD is safe and effective, with evolving technologies enhancing accuracy and efficiency.
Area of Science:
- Reproductive Medicine
- Genetics
- Embryology
Background:
- Preimplantation genetic diagnosis (PGD) has evolved significantly since its inception in 1990.
- It serves as an established alternative to traditional prenatal diagnosis, avoiding pregnancy termination.
- Continuous advancements in single-cell genetic testing have improved its efficiency and accuracy.
Purpose of the Study:
- To review the current state of preimplantation genetic diagnosis (PGD).
- To discuss the indications, accuracy, and evolving technologies in PGD.
- To highlight PGD's role in preventing genetic disorders and improving reproductive outcomes.
Main Methods:
- Single-cell biopsy from oocytes and/or in vitro-generated embryos.
- Traditional methods: single-cell multiplex-PCR for monogenic diseases and interphase fluorescence in situ hybridization for chromosomal aberrations.
- Emerging methods: single-cell whole genome amplification and array technology for automated, genome-wide analysis.
Main Results:
- PGD allows transfer of unaffected embryos, bypassing the need for prenatal diagnosis and termination.
- Follow-up data indicate acceptable live birth rates and no observed detrimental effects in children conceived via PGD.
- Newer PGD technologies reduce pre-procedural workload and enable more comprehensive genomic analysis.
Conclusions:
- PGD is a safe and effective reproductive technology with expanding applications.
- Technological advancements are making PGD more accurate, efficient, and automated.
- Laboratory accreditation is standardizing PGD, positioning it as a routine diagnostic tool.
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