The Association Between <i>APOE</i> Genotype, Race, and Dementia

The apolipoprotein E (APOE) haplotypes are known to be associated with dementia, with the ε4 haplotype associated with higher risk. It has been suggested that the APOE ε2 allele serves as a protective factor for dementia. However, data on the effects of the homozygous APOE ε2/ε2 genotype are limited, likely due to the rarity of the APOE ε2/ε2 genotype. Furthermore, the association between APOE genotypes and dementia may differ across self-reported race. We aim to investigate the association between APOE genotypes and dementia overall and across self-reported race, with a focus on the potential protective effects of the ε2 haplotype and differences across race.

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Publication Details

Journal
Neurology Genetics
Published
2026-07-16
DOI
https://doi.org/10.1212/nxg.0000000000200417
Primary Topic
Alzheimer's disease research and treatments
Type
article
Field-Weighted Citation Impact
0.00
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article

The Association Between APOE Genotype, Race, and Dementia

Vilmundur Guðnason, Sudha S. Seshadri, Allison E. Aiello, Alden L. Gross et al.
Neurology Genetics
Alzheimer's disease research and treatments
article

The Association Between APOE Genotype, Race, and Dementia

Vilmundur Guðnason, Sudha S. Seshadri, Allison E. Aiello, Alden L. Gross, Lenore J. Launer, Alison E. Fohner, Catherine Helmer, Denise M. Scholtens, Farzaneh A. Sorond, Emily M. Briceño, Norrina B. Allen, M. Arfan Ikram, Aïcha Soumaré, John Stephen, Katherine Giorgio, Rachel Zmora, Djass Mbangdadji, Paul S. de Vries, Archana Singh‐Manoux, Lihui Zhao, Timothy M. Hughes, Maxwell Armand Mansolf, Suzanne E. Judd, Stéphanie Debette, Pamela L. Lutsey, Sanaz Sedaghat, Michael Griswold, Natalia Lakomski, Oscar L. López, Zhiguang Li, Deborah A. Levine, Elizabeth Peterson, Claudia L. Satizábal, Jayandra J. Himali, Frank J. Wolters, D Lloyd-jones
article en

Abstract

The apolipoprotein E (APOE) haplotypes are known to be associated with dementia, with the ε4 haplotype associated with higher risk. It has been suggested that the APOE ε2 allele serves as a protective factor for dementia. However, data on the effects of the homozygous APOE ε2/ε2 genotype are limited, likely due to the rarity of the APOE ε2/ε2 genotype. Furthermore, the association between APOE genotypes and dementia may differ across self-reported race. We aim to investigate the association between APOE genotypes and dementia overall and across self-reported race, with a focus on the potential protective effects of the ε2 haplotype and differences across race.

Neurology GeneticsVol. 12(4)
Boston University (US), Northwestern University (US), Reykjavík University (IS), National Institutes of Health (US), University of Minnesota (US), Alabama Department of Public Health (US), Johns Hopkins University (US), Université de Bordeaux (FR), Inserm (FR), University of Iceland (IS), The University of Texas at San Antonio Health Science Center (US), University of Pittsburgh (US), University of Washington (US), Université Paris Cité (FR), University of Michigan (US), Erasmus MC (NL), Jackson Memorial Hospital (US), University of Mississippi Medical Center (US), University of Alabama at Birmingham (US), Sorbonne Paris Cité (FR), Bordeaux Population Health (FR), Institute for Neurodegenerative Disorders (US), National Institute on Aging (US), Icelandic Heart Association (IS), University College London (GB), Wake Forest University (US), Columbia University (US), The University of Texas Health Science Center at Houston (US)
Openalex Percentile: Top 9%
Alzheimer's disease research and treatments
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