Cited by 268Dementia and Cognitive Impairment ResearchAlzheimer's disease research and treatmentsGenetic and Clinical Aspects of Sex Determination and Chromosomal Abnormalities

Mosaic Loss of Chromosome y in Blood Is Associated with Alzheimer Disease

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Dumanski, Jan P., Lambert, Jean-Charles, Rasi, Chiara, Giedraitis, Vilmantas, Davies, Hanna, Grenier-Boley, Benjamin, Lindgren, Cecilia M., Campion, Dominique +8 more·2016·The American Journal of Human Genetics

Abstract

Men have a shorter life expectancy compared with women but the underlying factor(s) are not clear. Late-onset, sporadic Alzheimer disease (AD) is a common and lethal neurodegenerative disorder and many germline inherited variants have been found to influence the risk of developing AD. Our previous results show that a fundamentally different genetic variant, i.e., lifetime-acquired loss of chromosome Y (LOY) in blood cells, is associated with all-cause mortality and an increased risk of non-hematological tumors and that LOY could be induced by tobacco smoking. We tested here a hypothesis that men with LOY are more susceptible to AD and show that LOY is associated with AD in three independent studies of different types. In a case-control study, males with AD diagnosis had higher degree of LOY mosaicism (adjusted odds ratio = 2.80, p = 0.0184, AD events = 606). Furthermore, in two prospective studies, men with LOY at blood sampling had greater risk for incident AD diagnosis during follow-up time (hazard ratio [HR] = 6.80, 95% confidence interval [95% CI] = 2.16-21.43, AD events = 140, p = 0.0011). Thus, LOY in blood is associated with risks of both AD and cancer, suggesting a role of LOY in blood cells on disease processes in other tissues, possibly via defective immunosurveillance. As a male-specific risk factor, LOY might explain why males on average live shorter lives than females.

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Crossref · 10.1016/j.ajhg.2016.05.014

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  • There is conflicting evidence regarding the impact of CH on Alzheimer's disease.

    “However, there is conflicting evidence regarding the impact of CH on Alzheimer’s disease (AD).5,10”

    From TET2-mutant myeloid cells mitigate Alzheimer’s disease progression via CNS infiltration and enhanced phagocytosis in mice (2025) · cites this paper as [10]

    The Results (page unavailable) report that men with Alzheimer’s disease had more mosaic loss of chromosome Y in blood than controls, supporting one finding about a blood-cell clone and AD. The paper does not establish that evidence about clonal hematopoiesis and AD is conflicting; that broader characterization requires other evidence. (LLM, conf=0.83)

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  • Mosaic chromosomal alterations, including loss of the Y chromosome, are strongly associated with cardiovascular disease, stroke, and dementia risk.

    “Mosaic chromosomal alterations, including loss of the Y chromosome (LOY), are strongly associated with cardiovascular disease, stroke, and dementia risk [34,44,45].”

    From Clonal Hematopoiesis of Indeterminate Potential as an Emerging Interdisciplinary Risk Factor in Alzheimer’s Disease: Current Evidence and Future Directions (2026) · cites this paper as [45]

    The Results (page not available) report a strong association between mosaic loss of the Y chromosome in blood and incident Alzheimer disease in men, supporting the dementia-risk portion of the claim. The paper does not establish the asserted associations with cardiovascular disease or stroke; its Discussion also reports no significant Alzheimer-disease association for the autosomal alterations it examined. (LLM, conf=0.90)

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Authors
Dumanski, J. P., Lambert, J.-C., Rasi, C., Giedraitis, V., Davies, H., Grenier-Boley, B., Lindgren, C. M., Campion, D., Dufouil, C., Pasquier, F., Amouyel, P., Lannfelt, L., Ingelsson, M., Kilander, L., Lind, L., & Forsberg, L. A.
Affiliations
  • Uppsala University (SE)
  • Inserm (FR)
  • Broad Institute (US)
Corresponding author
  • Dumanski, Jan P.
  • Forsberg, Lars A.
Venue
The American Journal of Human Genetics
Publisher
Elsevier BV
Published
2016-06
Volume
98
Issue
6
Pages
1208-1219
ISSN
0002-9297 (ISSN-L)
OpenAlex
W2403642712
Cited by
266
References
65
Citations by year
2026: 35 · 2025: 42 · 2024: 33 · 2023: 33 · 2022: 22 · 2021: 33 · 2020: 19 · 2019: 22 · 2018: 14 · 2017: 10 · 2016: 3
FWCI
14.51
Type
journal article
Language
en
Open access
Locations
  • The American Journal of Human Genetics (publishedVersion, cc-by-nc-nd)
  • PubMed Central (publishedVersion, cc-by-nc-nd)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by-nc-nd)
  • PubMed (publishedVersion)
  • Uppsala University Publications (Uppsala University) (submittedVersion, other-oa)
Funders
  • Wellcome Trust (WT098017, 086596, 086596/Z/08/Z, WT064890, WT090532)
  • Development of Innovative Strategies for a Transdisciplinary approach to ALZheimer's disease
  • Agence Nationale de la Recherche (ANR-11-LABX-0009)
  • Cancerfonden
  • Hjärt-Lungfonden
  • Vetenskapsrådet
  • Akademiska Sjukhuset
  • Uppsala Universitet
  • Science for Life Laboratory
Topics
  • Health Sciences › Medicine › Psychiatry and Mental health › Dementia and Cognitive Impairment Research
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetic and Clinical Aspects of Sex Determination and Chromosomal Abnormalities
Keywords
Y chromosome mosaicism, Alzheimer's disease, sex differences in mortality, blood cells, cancer risk, immune surveillance, smoking, all-cause mortality
MeSH terms
Aged, Aged, 80 and over, Alzheimer Disease, Female, Humans, Longitudinal Studies, Male, Middle Aged, Mosaicism, Prognosis, Prospective Studies, Risk Factors, Case-Control Studies, Polymorphism, Single Nucleotide, Chromosomes, Human, Y

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