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Is Non-Alcoholic Fatty Liver Disease Genetic?
- Heritability
- ~50%
- Inheritance
- polygenic
- Key genes
- PNPLA3 TM6SF2 MBOAT7
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Spectrum of liver disease strongly associated with obesity. Heritability ~50%; PNPLA3 I148M is the strongest genetic risk variant.
How Genetic Is Non-Alcoholic Fatty Liver Disease?
Non-Alcoholic Fatty Liver Disease involves complex interactions between multiple genes and environmental factors. Heritability estimates range up to 50%, though no single gene determines outcome on its own.
Key genes associated with Non-Alcoholic Fatty Liver Disease: PNPLA3 TM6SF2 MBOAT7. 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 Non-Alcoholic Fatty Liver Disease?
Family history can be informative for Non-Alcoholic Fatty Liver Disease, 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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