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Is Opioid Use Disorder Genetic?
- Heritability
- ~65%
- Inheritance
- polygenic
- Key genes
- OPRM1 PDYN OPRD1
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Heritability of opioid dependence estimated at ~65%. Genes in the opioid signalling pathway affect both susceptibility and treatment response.
How Genetic Is Opioid Use Disorder?
Opioid Use Disorder involves complex interactions between multiple genes and environmental factors. Heritability estimates range up to 65%, though no single gene determines outcome on its own.
Key genes associated with Opioid Use Disorder: OPRM1 PDYN OPRD1. Variants in these genes have been identified through genome-wide association studies (GWAS) and clinical research as influencing susceptibility or severity.
Source: NIH
Does Family History Matter for Opioid Use Disorder?
Family history can be informative for Opioid Use Disorder, but its predictive power is limited because many genes — each with small effects — combine with environmental influences. A family history of the condition may prompt earlier or more frequent screening.
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