Pulse Brain · Growing Health Evidence Index
Tier 3 — Observational / field trialPeer-reviewed

Polygenic transmission disequilibrium confirms that common and rare variation act additively to create risk for autism spectrum disorders

iPSYCH-Broad Autism Group, Daniel J. Weiner, Emilie M. Wigdor, Stephan Ripke, Raymond K. Walters, Jack A. Kosmicki, Jakob Grove, Kaitlin E. Samocha, Jacqueline I. Goldstein, Aysu Okbay, Jonas Bybjerg‐Grauholm, Thomas Werge, David M. Hougaard, Jacob Taylor, David Skuse, Bernie Devlin, Richard Anney, Stephan Sanders, Somer Bishop, Preben Bo Mortensen, Anders D. Børglum, George Davey Smith, Mark J. Daly, Elise B Robinson

Nature Genetics · 2017

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Summary

This large-scale genetic study uses the iPSYCH Danish birth cohort to investigate how common and rare genetic variants jointly contribute to autism spectrum disorder risk. The authors employ polygenic transmission disequilibrium analysis to confirm that common variants and rare variants act additively in determining disease susceptibility, a finding that clarifies the genetic architecture of autism as suggested by population-level data.

UK applicability

The findings on autism genetics are broadly applicable to United Kingdom populations given shared European ancestry, though UK-specific epidemiological data and clinical service implications would require parallel investigation. The methodology may inform genetic screening and stratification approaches in UK healthcare settings, though this work is fundamentally discovery-stage population genetics rather than clinical implementation research.

Key measures

Polygenic risk scores, transmission disequilibrium test (TDT) statistics, rare variant burden, odds ratios for autism spectrum disorder association

Outcomes reported

The study examined the additive contribution of common and rare genetic variants to autism spectrum disorder risk using a large population-based cohort. It assessed transmission disequilibrium patterns to confirm genetic mechanisms underlying autism susceptibility.

Theme
Nutrition & health
Subject
Other / interdisciplinary
Study type
Research
Study design
Observational cohort
Source type
Peer-reviewed study
Status
Published
Geography
International
System type
Human clinical
DOI
10.1038/ng.3863
Catalogue ID
BFmor3gaas-aseqis

Topic tags

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