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Is Juvenile Polyposis Syndrome Genetic?
- Heritability
- ~95%
- Inheritance
- autosomal-dominant
- Key genes
- SMAD4,BMPR1A
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Juvenile polyposis syndrome causes multiple hamartomatous polyps in the gastrointestinal tract and increases the risk of colorectal and gastric cancers.
How Genetic Is Juvenile Polyposis Syndrome?
Juvenile Polyposis Syndrome has a strong genetic basis. Research estimates heritability at approximately 95%, meaning genetic factors account for the majority of variation in whether individuals develop this condition.
Key genes associated with Juvenile Polyposis Syndrome: SMAD4,BMPR1A. 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 Juvenile Polyposis Syndrome?
Yes — family history is one of the strongest predictors of Juvenile Polyposis Syndrome. 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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