APOE Utilization Tied to Most AD Cases - Takeaways - MDSpire

APOE Utilization Tied to Most AD Cases

Apolipoprotein E ε3 and ε4 genotypes account for most Alzheimer's disease and nearly half of all-cause dementia.*

  • By

  • Kathryn Wighton

  • January 20, 2026

  • 3 min

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  • 1

    Apolipoprotein E ε3 and ε4 alleles are linked to up to 93% of neuropathologically confirmed Alzheimer's disease cases.

  • 2

    The study analyzed data from over 470,000 participants across four major sources, including the UK Biobank and FinnGen.

  • 3

    Population attributable fractions for clinically diagnosed Alzheimer's disease were 72% in FinnGen and 76% in UK Biobank.

  • 4

    Apolipoprotein E ε3 contributes significantly to dementia risk alongside ε4, with 44% and 46% PAFs for all-cause dementia.

  • 5

    The authors recommend prioritizing interventions on APOE to enhance dementia prevention efforts.

Original Source(s)

APOE Utilization Tied to Most AD Cases

  • by Kathryn Wighton

  • January 20, 2026

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