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Is Alcohol Dependence Genetic?
- Heritability
- ~51%
- Inheritance
- multifactorial
- Key genes
- ADH1B,ALDH2,GABRA2,GABRB3
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Alcohol dependence has heritability of approximately 50–60%. Genes affecting alcohol metabolism especially ADH1B and ALDH2 significantly influence susceptibility.
How Genetic Is Alcohol Dependence?
Genetics plays a meaningful role in Alcohol Dependence, with heritability estimated at around 51%. However, environmental factors — including diet, lifestyle, and exposure — also significantly influence risk.
Key genes associated with Alcohol Dependence: ADH1B,ALDH2,GABRA2,GABRB3. Variants in these genes have been identified through genome-wide association studies (GWAS) and clinical research as influencing susceptibility or severity.
Source: CDC Genomics
Does Family History Matter for Alcohol Dependence?
Family history does matter. Having close relatives with Alcohol Dependence can increase your personal risk, though it is not deterministic. Maintaining a healthy lifestyle and regular screening remain important regardless of family background.
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