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Is Hereditary Transthyretin Amyloidosis Genetic?
- Heritability
- ~100%
- Inheritance
- autosomal-dominant
- Key genes
- TTR
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hATTR amyloidosis is caused by mutations in the TTR gene causing misfolded transthyretin protein to form amyloid deposits in the heart and nerves.
How Genetic Is Hereditary Transthyretin Amyloidosis?
Hereditary Transthyretin Amyloidosis has a strong genetic basis. Research estimates heritability at approximately 100%, meaning genetic factors account for the majority of variation in whether individuals develop this condition.
Key genes associated with Hereditary Transthyretin Amyloidosis: TTR. 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 Hereditary Transthyretin Amyloidosis?
Yes — family history is one of the strongest predictors of Hereditary Transthyretin Amyloidosis. If a first-degree relative (parent, sibling, or child) has been diagnosed, your own risk may be significantly elevated. Discussing your family history with a healthcare provider or genetic counsellor is strongly recommended.
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