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Is Ischaemic Stroke Genetic?

Complex
Heritability
~38%
Inheritance
polygenic
Key genes
PITX2 ALDH2 ABO

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Family history is a significant risk factor. Heritability ~38%. Rare monogenic stroke syndromes (CADASIL) and common GWAS risk loci both contribute.

How Genetic Is Ischaemic Stroke?

Ischaemic Stroke involves complex interactions between multiple genes and environmental factors. Heritability estimates range up to 38%, though no single gene determines outcome on its own.

Key genes associated with Ischaemic Stroke: PITX2 ALDH2 ABO. 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 Ischaemic Stroke?

Family history can be informative for Ischaemic Stroke, 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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Sources