Cited by 2,277Alzheimer's disease research and treatmentsDementia and Cognitive Impairment ResearchGenetic Associations and Epidemiology

Genome-wide meta-analysis identifies new loci and functional pathways influencing Alzheimer’s disease risk

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Jansen, Iris E., Savage, Jeanne E., Watanabe, Kyoko, Bryois, Julien, Williams, Dylan M., Steinberg, Stacy, Sealock, Julia, Karlsson, Ida K. +45 more·2019·Nature Genetics

Abstract

Alzheimer's disease (AD) is highly heritable and recent studies have identified over 20 disease-associated genomic loci. Yet these only explain a small proportion of the genetic variance, indicating that undiscovered loci remain. Here, we performed a large genome-wide association study of clinically diagnosed AD and AD-by-proxy (71,880 cases, 383,378 controls). AD-by-proxy, based on parental diagnoses, showed strong genetic correlation with AD (r g = 0.81). Meta-analysis identified 29 risk loci, implicating 215 potential causative genes. Associated genes are strongly expressed in immune-related tissues and cell types (spleen, liver, and microglia). Gene-set analyses indicate biological mechanisms involved in lipid-related processes and degradation of amyloid precursor proteins. We show strong genetic correlations with multiple health-related outcomes, and Mendelian randomization results suggest a protective effect of cognitive ability on AD risk. These results are a step forward in identifying the genetic factors that contribute to AD risk and add novel insights into the neurobiology of AD.

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  • Fine mapping produced 261 variants in credible sets.

    “To better understand AD genetics and the microglia interactome, we distinguished likely causal variants from those in linkage disequilibrium by applying fine mapping and identified 261 credible set variants (18).”

    From Brain cell type–specific enhancer–promoter interactome maps and disease <b>-</b> risk association (2019) · cites this paper as [18]

    The Results section, under “Functional interpretation of genetic variants” (page unavailable), confirms that the authors used fine mapping to identify credible sets. But it reports 345 plausible causal SNPs in the HLA-DRB1 locus alone, which contradicts a total of 261 credible-set variants. (LLM, conf=0.87)

    Checked by a reasoning model — may be wrong.

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  • More than 90 genetic loci are associated with Alzheimer's disease and related dementia (ADRD).

    “More than 90 genetic loci are associated with Alzheimer’s disease and related dementia (ADRD).”

    From Consensus meta-analysis of genome-wide association studies for Alzheimer’s disease and related dementias (2026) · cites this paper as [3]

    The Results (Genome-wide meta-analysis for AD status; page not provided) report 94 lead SNPs located in 29 distinct loci, not more than 90 loci. The Abstract likewise reports 29 risk loci for Alzheimer’s disease; the paper does not present the 94 SNPs as loci associated with ADRD. (LLM, conf=0.90)

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  • The study defined 39 signals in 33 loci already known to be associated with the risk of developing Alzheimer's disease and related dementias.

    “this approach enabled us to define 39 signals in 33 loci already known to be associated with the risk of developing ADD3,5–10”

    From New insights into the genetic etiology of Alzheimer’s disease and related dementias (2022) · cites this paper as [3]

    The Results (‘Genome-wide meta-analysis for AD status’) report 29 loci associated with Alzheimer’s disease, including 16 that overlapped previously identified regions. The cited paper therefore supports the background claim that some loci were already associated with Alzheimer’s risk, but it does not establish their association with related dementias. The 39 signals in 33 loci are presented as the citing authors’ own result, not a finding attributed to this source. (LLM, conf=0.84)

    Experimental — accuracy not yet measured
  • AD SNP heritability showed its strongest enrichment in microglial regulatory elements, especially microglial enhancers.

    “In contrast, AD SNP heritability was most highly enriched in microglia regulatory elements (Fig. 1D), specifically microglia enhancers (18-23).”

    From Brain cell type–specific enhancer–promoter interactome maps and disease <b>-</b> risk association (2019) · cites this paper as [19]

    The Results, under “Functional interpretation of genetic variants” (page unavailable), report AD SNP-heritability enrichment in H3K27ac marks and super enhancers, but do not identify these as microglial elements or say microglial enhancers had the strongest enrichment. The separate “Gene-sets implicated in AD and AD-by-proxy” section reports a microglial gene-expression association, not enrichment of SNP heritability in microglial regulatory elements. (LLM, conf=0.88)

    Experimental — accuracy not yet measured
  • AD SNP heritability showed its strongest enrichment in microglial regulatory elements, especially microglial enhancers.

    “In contrast, AD SNP heritability was most highly enriched in microglia regulatory elements (Fig. 1D), specifically microglia enhancers (18-23).”

    From Brain cell type–specific enhancer–promoter interactome maps and disease <b>-</b> risk association (2019) · cites this paper as [18]

    The Results section on functional interpretation (page unavailable) reports AD SNP-heritability enrichment in H3K27ac marks and super enhancers, but does not identify these as microglial elements or say microglial enhancers had the strongest enrichment. The separate gene-set Results (page unavailable) report a suggestive microglia association, not microglial enhancer heritability enrichment. (LLM, conf=0.86)

    Experimental — accuracy not yet measured

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Authors
Jansen, I. E., Savage, J. E., Watanabe, K., Bryois, J., Williams, D. M., Steinberg, S., Sealock, J., Karlsson, I. K., Hägg, S., Athanasiu, L., Voyle, N., Proitsi, P., Witoelar, A., Stringer, S., Aarsland, D., Almdahl, I. S., Andersen, F., Bergh, S., Bettella, F., Bjornsson, S., Brækhus, A., Bråthen, G., de Leeuw, C., Desikan, R. S., Djurovic, S., Dumitrescu, L., Fladby, T., Hohman, T. J., Jonsson, P. V., Kiddle, S. J., Rongve, A., Saltvedt, I., Sando, S. B., Selbæk, G., Shoai, M., Skene, N. G., Snaedal, J., Stordal, E., Ulstein, I. D., Wang, Y., White, L. R., Hardy, J., Hjerling-Leffler, J., Sullivan, P. F., van der Flier, W. M., Dobson, R., Davis, L. K., Stefansson, H., Stefansson, K., Pedersen, N. L., Ripke, S., Andreassen, O. A., & Posthuma, D.
Affiliations
  • Amsterdam Neuroscience (NL)
  • Karolinska Institutet (SE)
  • deCODE Genetics (Iceland) (IS)
  • Vanderbilt University (US)
  • Oslo University Hospital (NO)
  • King's College London (GB)
  • University of Oslo (NO)
  • UiT The Arctic University of Norway (NO)
  • Innlandet Hospital Trust (NO)
  • Norwegian University of Science and Technology (NO)
  • University of California, San Francisco (US)
  • Vanderbilt University Medical Center (US)
  • University of Cambridge (GB)
  • Fonna Hospital Trust (NO)
  • UCL Queen Square Institute of Neurology (GB)
  • University of North Carolina at Chapel Hill (US)
  • University of London (GB)
  • Broad Institute (US)
Venue
Nature Genetics
Published
2019-01-07
Volume
51
Issue
3
Pages
404-413
ISSN
  • 1061-4036 (ISSN-L)
  • 1546-1718
OpenAlex
W2908002252
Cited by
2,277
References
74
Citations by year
2026: 178 · 2025: 290 · 2024: 337 · 2023: 348 · 2022: 350 · 2021: 387 · 2020: 282 · 2019: 102 · 2018: 1
FWCI
197.10
Type
journal article
Language
en
Open access
Locations
  • Nature Genetics (publishedVersion)
  • PubMed (publishedVersion)
  • VU Research Portal (publishedVersion, other-oa)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
  • Pure Amsterdam UMC (submittedVersion, other-oa)
  • Data Archiving and Networked Services (DANS) (submittedVersion, other-oa)
  • UCL Discovery (University College London) (submittedVersion)
  • Research Portal (King's College London) (submittedVersion, other-oa)
  • NORA - Norwegian Open Research Archives (submittedVersion, other-oa)
  • Amsterdam UMC (VU Amsterdam) - Institutional Repository (submittedVersion)
  • Spiral (Imperial College London) (submittedVersion)
  • Hirsla (Landspítali University Hospital) (submittedVersion)
  • Apollo (University of Cambridge) (submittedVersion)
  • Data Archiving and Networked Services (DANS) (submittedVersion)
  • Apollo
Funders
  • National Science Foundation (FP7/2007-2013, U01AG016976)
  • Alzheimer's Association (U01 AG016976, U01 AG032984, ADGC-10–196728, U24AG021886, AG033193)
  • Case Western Reserve University
  • National Institute for Social Care and Health Research (MR/K006584/1)
  • Wellcome Trust (FP7/2007–2013, MR/K006584/1, 082604/2/07/Z, 108726, 082604, /Z/15/Z, MR/K006584, 115372, 108726/Z/15/Z)
  • EU Joint Programme – Neurodegenerative Disease Research (237250)
  • European Federation of Pharmaceutical Industries and Associations (FP7/20072013, 115372)
  • Development of Innovative Strategies for a Transdisciplinary approach to ALZheimer's disease
  • Université de Lille
  • Cancer Research UK (FP7/2007-2013, 12100, 115372)
  • National Institute for Health and Care Research (115372, FP7/2007–2013)
  • British Heart Foundation (115372)
  • University College London
  • European Commission (2007–2013, FP7 2007-2013, ANR-13, 286213, FP7/2007, 248778, FP6-2004-LIFESCIHEALTH-5, 115372)
  • Agence Nationale de la Recherche (ANR-13-JPRF-0001)
  • Institut National de la Santé et de la Recherche Médicale
  • Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung (FP7/2007-2013, 15435)
  • Vrije Universiteit Amsterdam (FP7/2007-2013)
  • Bundesministerium für Bildung und Forschung (01GI0102, 01GI0711, 01GI0420)
  • Austrian Science Fund (P20545, P 13180)
  • Erasmus Medisch Centrum
  • Nederlandse Organisatie voor Wetenschappelijk Onderzoek (480- 05-003, FP7 2007-2013, VICI 453-14-005, NWO VICI 453-14-005, 453-14-005)
  • University of Toronto
  • Hjärnfonden
  • Oesterreichische Nationalbank (15435)
  • Vetenskapsrådet (FP7/2007-2013)
  • Österreichische Forschungsförderungsgesellschaft (FP7/2007-2013, 827462)
  • Norges Forskningsråd (223273, #251134, 213837, 237250, 248778, #225989)
  • Karl-Franzens-Universität Graz
  • Medizinische Universität Graz
  • Hjartavernd (N01-AG-1-2100)
  • Nasjonalforeningen for Folkehelsen
  • Centre hospitalier régional universitaire de Lille (503480, 503176, 082604/2/07/Z)
  • National Institutes of Health (AG081220, HHSN268201100012C, FP7/2007-2013, HHSN268201100008C, HHSN268201100006C, 223273, N01-AG-1-2100, HHSN26820- 1100005C, HHSN268201100007C, -0001, HHSN268201100011C, HHSN268201100010C, HHSN268201100009C, 213837, NIA AG081220, AG016976, 2U01-HL-096902, 2U01-HL-096899)
  • Medical Research Council (FP7/20072013, MR/K006584/1, 503480, K006584/1, 108726/Z/15/Z, MC_PC_17228, MR/P021573/1, MR/L011859/1, MC_PC_17214)
  • Engineering and Physical Sciences Research Council (FP7/2007–2013)
  • Economic and Social Research Council (FP7/2007-2013)
  • National Institute on Aging (AG 016976, N01-AG12100, R01AG059716, AG037985, AG081220, U01AG016976, 2U01HL096899, NIA AG081220, K01AG049164, U01AG032984, AG033193, U01 2U01HL096812, AG032984, 2U01HL096902, R01AG033193, AG021886, U24AG021886)
  • National Heart, Lung, and Blood Institute (HHSN268201 100012C, HHSN268201100007C, HHSN2682 01100008C, 2U01HL096899, HH-SN-268201100006C, HHSN268201100011C, HL-105756, U01 2U01HL096812, HHSN268201100005C, HHSN268201100010C, U01HL096814, HHSN26820 1100009C, R01HL105756, U01HL096917, AG033193, 2U01HL096902, RC2HL102419, U01HL096812)
  • National Institute of Mental Health (U01MH109536)
  • National Institute on Deafness and Other Communication Disorders (2U01HL096899, U01 2U01HL096812, 2U01HL096902)
  • National Institute of General Medical Sciences (T32GM080178)
  • National Institute of Diabetes and Digestive and Kidney Diseases (DK066134, U01DK066134, 2U01HL096899, U01 2U01HL096812, 2U01HL096902)
  • National Institute of Neurological Disorders and Stroke (AG033193, HHSN268201100005C, 2U01HL096899, 2U01HL096902, FP7/2007-2013, U012U01HL096812)
Topics
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Health Sciences › Medicine › Psychiatry and Mental health › Dementia and Cognitive Impairment Research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetic Associations and Epidemiology
Keywords
Alzheimer's disease, genetic susceptibility loci, genetic correlation, microglia, lipid metabolism, cognitive ability, Mendelian randomization, gene set enrichment analysis
MeSH terms
Adult, Alzheimer Disease, Female, Humans, Male, Middle Aged, Risk, Case-Control Studies, Genetic Predisposition to Disease, Polymorphism, Single Nucleotide, Quantitative Trait Loci, Genome-Wide Association Study, Young Adult

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