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Is Autism Spectrum Disorder Genetic?
- Heritability
- ~83%
- Inheritance
- multifactorial
- Key genes
- SHANK3,NRXN1,CHD8,CNTNAP2
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Autism spectrum disorder has a strong genetic basis with heritability estimated at 64–91%. Hundreds of genes contribute to risk.
How Genetic Is Autism Spectrum Disorder?
Genetics plays a meaningful role in Autism Spectrum Disorder, with heritability estimated at around 83%. However, environmental factors — including diet, lifestyle, and exposure — also significantly influence risk.
Key genes associated with Autism Spectrum Disorder: SHANK3,NRXN1,CHD8,CNTNAP2. 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 Autism Spectrum Disorder?
Family history does matter. Having close relatives with Autism Spectrum Disorder 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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