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Is Essential Tremor Genetic?
- Heritability
- ~60%
- Inheritance
- polygenic
- Key genes
- LINGO1 SLC1A2
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The most common movement disorder worldwide (~1 in 20 adults). Heritability is ~50–60%; LINGO1 variants are the most replicated risk alleles.
How Genetic Is Essential Tremor?
Essential Tremor involves complex interactions between multiple genes and environmental factors. Heritability estimates range up to 60%, though no single gene determines outcome on its own.
Key genes associated with Essential Tremor: LINGO1 SLC1A2. 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 Essential Tremor?
Family history can be informative for Essential Tremor, 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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