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Related Concept Videos

Genetic Screens02:46

Genetic Screens

5.9K
Genetic screens are tools used to identify genes and mutations responsible for phenotypes of interest. Genetic screens help identify individuals or a group of people at risk of developing  genetic diseases and help them with early intervention, targeted therapy, and reproductive options.
Forward genetic screens
Forward or “classical” genetic screens involve creating random mutations in an organism’s DNA using radiation, mutagens, or insertion of additional bases, which...
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In Vitro Fertilization01:24

In Vitro Fertilization

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In vitro fertilization (IVF) is a form of assisted reproductive technology where an egg is fertilized with sperm in a controlled laboratory environment before transferring the resulting embryo into the uterus. This process is designed to help individuals and couples experiencing difficulties conceiving.
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Quality Control01:05

Quality Control

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Quality control is one of the three cyclical quality assurance activities that help keep a system under statistical control. Typical quality control activities include creating quality control charts, conducting proficiency testing, and documenting and archiving results.
Quality control helps track data, visualize trends, and identify variations, making it easier to detect deviations that may affect the accuracy of an analysis. One way to do this is by generating a quality control chart, which...
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Related Experiment Video

Updated: Mar 27, 2026

FISH for Pre-implantation Genetic Diagnosis
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FISH for Pre-implantation Genetic Diagnosis

Published on: February 23, 2011

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Quality control standards in PGD and PGS.

S B SenGupta1, S Dhanjal1, J C Harper1

  • 1UCL Centre for PGD, Institute for Women's Health, University College London, 89-96 Chenies Mews, London WC1E 6HX, UK.

Reproductive Biomedicine Online
|January 19, 2016
PubMed
Summary
This summary is machine-generated.

Preimplantation genetic diagnosis (PGD) and screening test embryos for genetic and chromosomal abnormalities before implantation. This ensures healthier offspring for at-risk couples undergoing in vitro fertilization (IVF).

Keywords:
chromosomal abnormalityembryopreimplantation genetic diagnosispreimplantation genetic screeningquality controlsingle gene disorder

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Semiconductor Sequencing for Preimplantation Genetic Testing for Aneuploidy
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Semiconductor Sequencing for Preimplantation Genetic Testing for Aneuploidy

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Area of Science:

  • Reproductive medicine
  • Clinical genetics
  • Embryology

Background:

  • Preimplantation genetic diagnosis (PGD) aids couples at risk of transmitting genetic disorders.
  • It involves in vitro fertilization (IVF) and embryo biopsy at various developmental stages.
  • Preimplantation genetic screening (PGS) analyzes chromosomal abnormalities for embryo selection.

Purpose of the Study:

  • To outline the methodologies and importance of PGD and PGS.
  • To highlight the role of advanced genetic technologies in reproductive medicine.
  • To emphasize the need for laboratory accreditation and quality assurance.

Main Methods:

  • Embryo biopsy at zygote, cleavage, or blastocyst stages.
  • Genetic analysis using polymerase chain reaction (PCR) for single gene defects.
  • Chromosome analysis via array comparative genomic hybridization (aCGH) or next-generation sequencing (NGS).

Main Results:

  • Advanced techniques like PCR, aCGH, NGS, and karyomapping have improved diagnostic accuracy.
  • Accreditation, such as ISO 15189, ensures diagnostic test quality and reliability.
  • Collaboration between IVF labs and diagnostic centers is crucial for successful PGD/PGS implementation.

Conclusions:

  • PGD and PGS are essential tools for preventing the transmission of genetic abnormalities.
  • Accreditation and adherence to international standards (ISO 15189) are vital for PGD/PGS services.
  • Continuous advancements in genetic technologies enhance the effectiveness of PGD and PGS.