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Published on: January 7, 2019
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The collaborative study on the genetics of alcoholism: Sample and clinical data
Danielle M Dick1, Emily Balcke1, Vivia McCutcheon2
1Department of Psychiatry, Rutgers Robert Wood Johnson Medical School, Piscataway, New Jersey, USA.
Genes, Brain, and Behavior
|August 15, 2023
Summary
The Collaborative Genetic Study of Alcoholism (COGA) investigates genetic factors in alcohol use disorder across development. This large, multi-generational study uses extensive data to understand genetic risk and environmental influences.
Area of Science:
- Genetics
- Neuroscience
- Psychiatry
- Addiction Research
Background:
- Alcohol use disorder (AUD) has complex genetic and environmental etiologies.
- Understanding genetic contributions to AUD is crucial for developing effective interventions.
Purpose of the Study:
- To identify genes contributing to alcohol use disorder and related outcomes.
- To characterize how genetic risk for AUD develops across the lifespan.
- To examine the interplay between genetics, environment, and brain function in AUD.
Main Methods:
- Multi-site, multi-generational family-based study design.
- Recruitment of probands from alcohol treatment centers and community families.
- Comprehensive phenotyping including psychiatric interviews, questionnaires, DNA collection, and electrophysiological data.
Main Results:
- Nearly 18,000 individuals from over 2200 families assessed over 30 years.
- Rich longitudinal data available for studying alcohol use and problems across the lifespan (ages 7-97).
- Key research findings from COGA data analyses have advanced understanding of AUD genetics.
Conclusions:
- COGA provides a valuable, comprehensive dataset for alcohol use disorder research.
- Data availability encourages further collaboration to advance the field of addiction genetics.
- Longitudinal and multi-modal data offer unique insights into AUD etiology and progression.
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