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The ARFID-GEN study investigates genetic and environmental factors in Avoidant Restrictive Food Intake Disorder (ARFID). This large genetic study aims to understand ARFID

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Area of Science:

  • Genetics
  • Psychiatry
  • Pediatrics

Background:

  • The Avoidant Restrictive Food Intake Disorder - Genes and Environment (ARFID-GEN) study examines genetic and environmental risk factors for ARFID.
  • ARFID affects both children and adults, necessitating a broad scope of investigation.

Purpose of the Study:

  • To investigate the genetic architecture of ARFID in relation to other eating disorders.
  • To explore the genetic underpinnings of ARFID compared to psychiatric, neurodevelopmental, and metabolic disorders.
  • To generate clinically meaningful insights from genetic findings for ARFID.

Main Methods:

  • Recruitment of 3,000 individuals with ARFID from the United States.
  • Online comprehensive consent and phenotyping for participants (children aged 7-17 and adults 18+).
  • Saliva sample collection for genotyping and subsequent genome-wide association study (GWAS).

Main Results:

  • Genome-wide association study (GWAS) of ARFID is planned.
  • Analysis will explicate the genetic architecture of ARFID.
  • Comparison of ARFID genetics with other disorders and traits is a key objective.

Conclusions:

  • ARFID-GEN is a significant genetic study aiming to advance understanding of eating disorder genetics.
  • The study seeks to provide actionable findings for clinical application in ARFID.
  • This research contributes to the broader field of psychiatric genetics and eating disorder research.