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Is Common Variable Immunodeficiency Genetic?
- Heritability
- ~25%
- Inheritance
- polygenic
- Key genes
- TNFRSF13B ICOS
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The most common symptomatic primary antibody deficiency. ~10% of cases have an affected first-degree relative; genetic causes identified in ~30%.
How Genetic Is Common Variable Immunodeficiency?
Genetics plays a meaningful role in Common Variable Immunodeficiency, with heritability estimated at around 25%. However, environmental factors — including diet, lifestyle, and exposure — also significantly influence risk.
Key genes associated with Common Variable Immunodeficiency: TNFRSF13B ICOS. 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 Common Variable Immunodeficiency?
Family history does matter. Having close relatives with Common Variable Immunodeficiency can increase your personal risk, though it is not deterministic. Maintaining a healthy lifestyle and regular screening remain important regardless of family background.
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