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Is Ulcerative Colitis Genetic?
- Heritability
- ~70%
- Inheritance
- polygenic
- Key genes
- NOD2 IL23R IBD5
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Inflammatory bowel disease of the colon with heritability up to 70%. Shares many risk loci with Crohn's disease but has distinct genetic architecture.
How Genetic Is Ulcerative Colitis?
Ulcerative Colitis involves complex interactions between multiple genes and environmental factors. Heritability estimates range up to 70%, though no single gene determines outcome on its own.
Key genes associated with Ulcerative Colitis: NOD2 IL23R IBD5. 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 Ulcerative Colitis?
Family history can be informative for Ulcerative Colitis, 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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