Cited by 161Dementia and Cognitive Impairment ResearchAlzheimer's disease research and treatmentsCancer-related cognitive impairment studies

Sex Differences in Cognitive Decline in Subjects with High Likelihood of Mild Cognitive Impairment due to Alzheimer’s disease

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Sohn, Dongwha, Shpanskaya, Katie, Lucas, Joseph E., Petrella, Jeffrey R., Saykin, Andrew J., Tanzi, Rudolph E., Samatova, Nagiza F., Doraiswamy, P. Murali·2018·Scientific Reports

Abstract

Sex differences in Alzheimer’s disease (AD) biology and progression are not yet fully characterized. The goal of this study is to examine the effect of sex on cognitive progression in subjects with high likelihood of mild cognitive impairment (MCI) due to Alzheimer’s and followed up to 10 years in the Alzheimer’s Disease Neuroimaging Initiative (ADNI). Cerebrospinal fluid total-tau and amyloid-beta (Aβ42) ratio values were used to sub-classify 559 MCI subjects (216 females, 343 males) as having “high” or “low” likelihood for MCI due to Alzheimer’s. Data were analyzed using mixed-effects models incorporating all follow-ups. The worsening from baseline in Alzheimer’s Disease Assessment Scale-Cognitive score (mean, SD) (9 ± 12) in subjects with high likelihood of MCI due to Alzheimer’s was markedly greater than that in subjects with low likelihood (1 ± 6, p < 0.0001). Among MCI due to AD subjects, the mean worsening in cognitive score was significantly greater in females (11.58 ± 14) than in males (6.87 ± 11, p = 0.006). Our findings highlight the need to further investigate these findings in other populations and develop sex specific timelines for Alzheimer’s disease progression.

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  • Females with MCI or AD dementia show greater cognitive decline and are outperformed by males in several cognitive domains.

    “Research has shown that females with MCI or AD dementia shows greater cognitive decline and are outperformed by males in several cognitive domains. 68 , 69”

    From Unraveling sex differences in Alzheimer's disease and related endophenotypes with brain proteomes (2025) · cites this paper as [68]

    The Results section reports significantly greater ADAS-Cog11 worsening in females than males with a high likelihood of MCI due to AD. The Introduction describes faster decline after MCI or AD onset as emerging evidence, but this study did not examine AD dementia. The Discussion says other cognitive domains still need examination, so it does not establish that males outperform females in several domains. Page numbers are unavailable in our copy. (LLM, conf=0.87)

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Authors
Sohn, D., Shpanskaya, K., Lucas, J. E., Petrella, J. R., Saykin, A. J., Tanzi, R. E., Samatova, N. F., & Doraiswamy, P. M.
Affiliations
  • Oak Ridge National Laboratory (US)
  • Stanford Medicine (US)
  • Duke University (US)
  • Duke Medical Center (US)
  • Indiana University School of Medicine (US)
  • Harvard University (US)
Corresponding author
Doraiswamy, P. Murali
Venue
Scientific Reports
Published
2018-05-10
Volume
8
Issue
1
Pages
7490-7490
ISSN
2045-2322 (ISSN-L)
OpenAlex
W2800992027
Cited by
161
References
36
Citations by year
2026: 10 · 2025: 24 · 2024: 18 · 2023: 18 · 2022: 33 · 2021: 30 · 2020: 18 · 2019: 7 · 2018: 3
FWCI
11.41
Type
journal article
Language
en
Open access
Locations
  • Scientific Reports (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, other-oa)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • Digital Access to Scholarship at Harvard (DASH) (Harvard University) (submittedVersion, cc-by)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • IUScholarWorks (Indiana University) (submittedVersion, cc-by)
Funders
  • U.S. Department of Defense (U01 AG024904, W81XWH, W81XWH-12-2-, W81XWH-12, W81XWH1220012, AG024904)
  • Foundation for the National Institutes of Health (W81XWH-12-2-0012, U01AG024904, Grant U01 AG024904, AG024904)
  • Alzheimer's Association (U01 AG024904, W81XWH-12-2-0012)
  • Bristol-Myers Squibb (U01 AG024904, AG024904, W81XWH-12-2-0012)
  • Eli Lilly and Company (U01 AG024904, AG024904, W81XWH-12-2-0012)
  • Pfizer (AG024904, W81XWH-12-2-0012, U01 AG024904)
  • Biogen (W81XWH-12-2-0012, U01 AG024904, AG024904)
  • University of Southern California (W81XWH-12-2-0012, U01 AG024904)
  • F. Hoffmann-La Roche (W81XWH-12-2-0012, AG024904, U01 AG024904)
  • Meso Scale Diagnostics (U01 AG024904, AG024904, W81XWH-12-2-0012)
  • Alzheimer's Disease Neuroimaging Initiative (W81XWH-12-2–0012, U01AG024904, AG024904, W81XWH-12-2-, Department of Defense award number W81XWH-12-2-0012)
  • Cure Alzheimer's Fund
  • BioClinica (U01 AG024904, W81XWH-12-2-0012, AG024904)
  • Novartis Pharmaceuticals Corporation (W81XWH-12-2-0012, U01 AG024904, AG024904)
  • Northern California Institute for Research and Education (U01 AG024904, W81XWH-12-2-0012)
  • Eisai (W81XWH-12-2-0012, U01 AG024904, AG024904)
  • Servier (AG024904, W81XWH-12-2-0012, U01 AG024904)
  • H. Lundbeck A/S (U01 AG024904, AG024904, W81XWH-12-2-0012)
  • IXICO (AG024904, W81XWH-12-2-0012, U01 AG024904)
  • National Institutes of Health (3u01ag024904-10s2, W81XWH, W81XWH-12-2-0012, U01-AG024904, Grant U01 AG024904, AG024904)
  • Genentech (W81XWH-12-2-0012, AG024904, U01 AG024904)
  • Canadian Institutes of Health Research (U01 AG024904, W81XWH-12-2-0012)
  • National Institute on Aging (U01-AG-024904, W81XWH-12-2–0012, AG 024904, U01AG068057)
  • National Institute of Biomedical Imaging and Bioengineering (W81XWH-12-2-0012, U01 AG024904, AG024904)
Topics
  • Health Sciences › Medicine › Psychiatry and Mental health › Dementia and Cognitive Impairment Research
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Cancer-related cognitive impairment studies
Keywords
sex differences, Alzheimer's disease, mild cognitive impairment, cognitive decline, cognitive progression, cerebrospinal fluid biomarkers, tau protein, amyloid-beta, Alzheimer's Disease Neuroimaging Initiative
MeSH terms
Aged, Aged, 80 and over, Alzheimer Disease, Cognition, Female, Humans, Longitudinal Studies, Male, Neuropsychological Tests, Retrospective Studies, Risk Factors, Sex Characteristics, Prevalence, Disease Progression, Neuroimaging, Cognitive Dysfunction

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