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Is Hashimoto's Thyroiditis Genetic?
- Heritability
- ~79%
- Inheritance
- polygenic
- Key genes
- HLA-DR5 CTLA4 PTPN22
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Autoimmune hypothyroidism with heritability ~79%. HLA class II alleles and immune checkpoint gene variants drive susceptibility.
How Genetic Is Hashimoto's Thyroiditis?
Hashimoto's Thyroiditis involves complex interactions between multiple genes and environmental factors. Heritability estimates range up to 79%, though no single gene determines outcome on its own.
Key genes associated with Hashimoto's Thyroiditis: HLA-DR5 CTLA4 PTPN22. 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 Hashimoto's Thyroiditis?
Family history can be informative for Hashimoto's Thyroiditis, 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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