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Is Graves' Disease Genetic?
- Heritability
- ~80%
- Inheritance
- polygenic
- Key genes
- HLA-DR3 CTLA4 TSHR
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Autoimmune hyperthyroidism with high heritability. Identical twin concordance ~35%; HLA and immune-regulatory genes are key risk loci.
How Genetic Is Graves' Disease?
Graves' Disease involves complex interactions between multiple genes and environmental factors. Heritability estimates range up to 80%, though no single gene determines outcome on its own.
Key genes associated with Graves' Disease: HLA-DR3 CTLA4 TSHR. Variants in these genes have been identified through genome-wide association studies (GWAS) and clinical research as influencing susceptibility or severity.
Source: MedlinePlus Genetics
Does Family History Matter for Graves' Disease?
Family history can be informative for Graves' Disease, 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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