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Related Concept Videos

Genetic Screens02:46

Genetic Screens

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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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Equitable Expanded Carrier Screening Needs Indigenous Clinical and Population Genomic Data.

Simon Easteal1, Ruth M Arkell2, Renzo F Balboa1

  • 1National Centre for Indigenous Genomics, Australian National University, Canberra, ACT 2600, Australia.

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Expanded carrier screening (ECS) requires knowledge of genomic variations, which are underrepresented in non-European populations. Equitable genomic medicine necessitates including Indigenous Australians in research for accurate genetic disease screening.

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Area of Science:

  • Genomic Medicine
  • Population Genetics
  • Medical Ethics

Background:

  • Expanded carrier screening (ECS) relies on understanding genomic variation and disease-causing DNA variants.
  • Historically, genetic research has disproportionately focused on individuals of European ancestry, leading to knowledge gaps in other populations.
  • This disparity risks inequitable healthcare outcomes in genomic medicine.

Purpose of the Study:

  • To highlight the need for including underrepresented Indigenous and minority populations in genomic research.
  • To discuss the implications of current genomic data limitations for implementing ECS in Australia.
  • To advocate for equitable outcomes in genomic medicine for all Australians.

Main Methods:

  • Literature review and discussion of current genomic research practices.
  • Analysis of the impact of ancestry-biased data on expanded carrier screening.
  • Examination of policy objectives for genomic medicine in Australia.

Main Results:

  • Pathogenic variant data is significantly less comprehensive for non-European populations compared to European ancestry groups.
  • Current genomic reference data in Australia is insufficient for equitable ECS implementation among Aboriginal and/or Torres Strait Islander peoples.
  • Without targeted efforts, non-European populations risk further disadvantage in genomic healthcare.

Conclusions:

  • Significant investment in building evidence bases and genomic reference data is crucial for equitable ECS in Australia.
  • Culturally safe, community-led research is essential to integrate genomic medicine effectively for Indigenous Australians.
  • Addressing data gaps is imperative to ensure the benefits of the Genomics Health Futures Mission reach all Australians.