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Related Concept Videos

Genome-wide Association Studies-GWAS01:11

Genome-wide Association Studies-GWAS

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Genome-wide association studies or GWAS are used to identify whether common SNPs are associated with certain diseases. Suppose specific SNPs are more frequently observed in individuals with a particular disease than those without the disease. In that case, those SNPs are said to be associated with the disease. Chi-square analysis is performed to check the probability of the allele likely to be associated with the disease.
GWAS does not require the identification of the target gene involved in...
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NeuroBooster Array: A Genome-Wide Genotyping Platform to Study Neurological Disorders Across Diverse Populations.

Sara Bandres-Ciga1, Faraz Faghri1,2, Elisa Majounie3

  • 1Center for Alzheimer's and Related Dementias, National Institute on Aging and National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, Maryland, USA.

Movement Disorders : Official Journal of the Movement Disorder Society
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Summary

The new Illumina NeuroBooster Array (NBA) enhances neurological disorder research by including diverse genetic content for multi-ancestry studies. This array facilitates genetic discovery and inclusivity across global populations.

Keywords:
Centre for Alzheimer's and Related DementiasGlobal Parkinson's Genetics ProgramNeuroBooster arraydiversitygenetic screeninggenotypingneurological diseases

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Area of Science:

  • Genetics
  • Neuroscience
  • Bioinformatics

Background:

  • Commercial genotyping arrays often lack sufficient coverage of genetic variation across diverse populations.
  • This gap limits comprehensive genetic research, particularly in complex diseases affecting multiple ancestral groups.

Purpose of the Study:

  • To develop a multi-ancestry genome-wide array with extensive neuro-specific genetic content.
  • To promote diversity and inclusivity in neurological disorder research by enabling studies across various ancestral groups.

Main Methods:

  • Development of the Illumina NeuroBooster Array (NBA), a custom, high-throughput genotyping platform.
  • Integration of 1,914,934 variants from the Infinium Global Diversity Array with 95,273 custom variants linked to over 70 neurological conditions.
  • Inclusion of approximately 10,000 tagging variants for imputation and analysis of neurodegenerative disease loci, validated on over 2000 patient samples.

Main Results:

  • The NBA efficiently assesses known and novel genetic associations within a multi-ancestry framework.
  • Accurate identification of rare genetic variants and imputation of over 15 million common variants across diverse populations.
  • Enables sample prioritization for whole-genome sequencing and plays a role in precision medicine interventional study recruitment.

Conclusions:

  • The NBA is a valuable tool for collaborative global research on neurological disorders.
  • It significantly contributes to understanding the genetic basis of debilitating neurological conditions.
  • The array fosters inclusivity and diversity in genetic research for neurological diseases.