Cited by 691Dementia and Cognitive Impairment ResearchAlzheimer's disease research and treatmentsLipoproteins and Cardiovascular Health

The DOI matches its Crossref record; 74 of the 74 references it cites were found in a registry or an index.

Apolipoprotein E Genotype and Sex Risk Factors for Alzheimer Disease: A Meta-analysis

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Abstract

Importance: It is unclear whether female carriers of the apolipoprotein E (APOE) ε4 allele are at greater risk of developing Alzheimer disease (AD) than men, and the sex-dependent association of mild cognitive impairment (MCI) and APOE has not been established. Objective: To determine how sex and APOE genotype affect the risks for developing MCI and AD. Data Sources: Twenty-seven independent research studies in the Global Alzheimer's Association Interactive Network with data on nearly 58 000 participants. Study Selection: Non-Hispanic white individuals with clinical diagnostic and APOE genotype data. Data Extraction and Synthesis: Homogeneous data sets were pooled in case-control analyses, and logistic regression models were used to compute risks. Main Outcomes and Measures: Age-adjusted odds ratios (ORs) and 95% confidence intervals for developing MCI and AD were calculated for men and women across APOE genotypes. Results: Participants were men and women between ages 55 and 85 years. Across data sets most participants were white, and for many participants, racial/ethnic information was either not collected or not known. Men (OR, 3.09; 95% CI, 2.79-3.42) and women (OR, 3.31; CI, 3.03-3.61) with the APOE ε3/ε4 genotype from ages 55 to 85 years did not show a difference in AD risk; however, women had an increased risk compared with men between the ages of 65 and 75 years (women, OR, 4.37; 95% CI, 3.82-5.00; men, OR, 3.14; 95% CI, 2.68-3.67; P = .002). Men with APOE ε3/ε4 had an increased risk of AD compared with men with APOE ε3/ε3. The APOE ε2/ε3 genotype conferred a protective effect on women (OR, 0.51; 95% CI, 0.43-0.61) decreasing their risk of AD more (P value = .01) than men (OR, 0.71; 95% CI, 0.60-0.85). There was no difference between men with APOE ε3/ε4 (OR, 1.55; 95% CI, 1.36-1.76) and women (OR, 1.60; 95% CI, 1.43-1.81) in their risk of developing MCI between the ages of 55 and 85 years, but women had an increased risk between 55 and 70 years (women, OR, 1.43; 95% CI, 1.19-1.73; men, OR, 1.07; 95% CI, 0.87-1.30; P = .05). There were no significant differences between men and women in their risks for converting from MCI to AD between the ages of 55 and 85 years. Individuals with APOE ε4/ε4 showed increased risks vs individuals with ε3/ε4, but no significant differences between men and women with ε4/ε4 were seen. Conclusions and Relevance: Contrary to long-standing views, men and women with the APOE ε3/ε4 genotype have nearly the same odds of developing AD from age 55 to 85 years, but women have an increased risk at younger ages.

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Metadata

Authors
Neu, S. C., Pa, J., Kukull, W., Beekly, D., Kuzma, A., Gangadharan, P., Wang, L.-S., Romero, K., Arneric, S. P., Redolfi, A., Orlandi, D., Frisoni, G. B., Au, R., Devine, S., Auerbach, S., Espinosa, A., Boada, M., Ruiz, A., Johnson, S. C., Koscik, R., Wang, J.-J., Hsu, W.-C., Chen, Y.-L., & Toga, A. W.
Affiliations
  • University of Southern California (US)
  • University of Washington (US)
  • University of Pennsylvania (US)
  • Critical Path Institute (US)
  • Coalition Against Major Disease, Critical Path Institute, Tucson, Arizona
  • Centro San Giovanni di Dio Fatebenefratelli (IT)
  • University of Geneva (CH)
  • Boston University (US)
  • Fundació ACE (ES)
  • Research Center and Memory Clinic, Fundació ACE, Institut Català de Neurociències Aplicades, Barcelona, Spain
  • University of Wisconsin–Madison (US)
  • Chang Gung University (TW)
  • Chang Gung Memorial Hospital (TW)
Corresponding author
Toga, Arthur W.
Venue
JAMA Neurology
Published
2017-10-01
Volume
74
Issue
10
Pages
1178
ISSN
2168-6149 (ISSN-L)
OpenAlex
W2745657465
Cited by
674
References
74
Citations by year
2026: 74 · 2025: 81 · 2024: 74 · 2023: 93 · 2022: 78 · 2021: 96 · 2020: 69 · 2019: 67 · 2018: 37 · 2017: 3
FWCI
39.51
Type
journal article
Language
en
Open access
Locations
  • JAMA Neurology (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Institutes of Health (UL1TR000130, 5u01ag024904-10, n01hc25195-41-0-1, UL1TR001855)
  • U.S. Food and Drug Administration (U18FD005320)
  • National Institute on Aging (U01-AG-024904, P30AG010129, P30AG010133, P30AG028383, P30AG012300, P50AG005133, U01AG016976, P50AG005131, P50AG005138, P50AG016570, P30AG010124, P50AG016573, RF1AG027161, P50AG047366, P30AG008017, P30AG010161, R01AG033040, P30AG008051, P50AG008702, R01AG016495, P50AG033514, P30AG035982, P50AG005681, P50AG005142, P50AG047270, P30AG019610, P50AG005146, P01AG003991, RF1AG054617, P30AG013846, P50AG005136, P50AG005134, P30AG013854, P50AG025688, P50AG047266, R01AG008122, R01AG027161, U24AG041689, U19AG024904, P01AG026276, P50AG023501, P50AG016574)
  • National Heart, Lung, and Blood Institute (N01-HC-025195)
  • National Institute of Neurological Disorders and Stroke (R01NS017950)
  • National Institute of Biomedical Imaging and Bioengineering (U54EB020406, P41EB015922)
  • National Center for Advancing Translational Sciences
Topics
  • Health Sciences › Medicine › Psychiatry and Mental health › Dementia and Cognitive Impairment Research
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Alzheimer's disease research and treatments
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Lipoproteins and Cardiovascular Health
Keywords
Alzheimer's disease, apolipoprotein E, APOE ε4, APOE ε2, sex differences, mild cognitive impairment, genetic risk factors
MeSH terms
Aged, Aged, 80 and over, Alzheimer Disease, Apolipoproteins E, Female, Humans, Male, Middle Aged, Risk Factors, Sex Characteristics, Logistic Models, Case-Control Studies, Databases, Factual

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