Cited by 3,786Alzheimer's disease research and treatmentsDementia and Cognitive Impairment ResearchGenetic Associations and Epidemiology

Association of apolipoprotein E allele ϵ4 with late‐onset familial and sporadic Alzheimer's disease

Open access
Saunders, A. M., Strittmatter, W. J., Schmechel, D., St. George-Hyslop, P. H., Pericak-Vance, M. A., Joo, S. H., Rosi, B. L., Gusella, J. F. +6 more·1993·Neurology

Abstract

Apolipoprotein E, type epsilon 4 allele (APOE epsilon 4), is associated with late-onset familial Alzheimer's disease (AD). There is high avidity and specific binding of amyloid beta-peptide with the protein ApoE. To test the hypothesis that late-onset familial AD may represent the clustering of sporadic AD in families large enough to be studied, we extended the analyses of APOE alleles to several series of sporadic AD patients. APOE epsilon 4 is significantly associated with a series of probable sporadic AD patients (0.36 +/- 0.042, AD, versus 0.16 +/- 0.027, controls [allele frequency estimate +/- standard error], p = 0.00031). Spouse controls did not differ from CEPH grandparent controls from the Centre d'Etude du Polymorphisme Humain (CEPH) or from literature controls. A large combined series of autopsy-documented sporadic AD patients also demonstrated highly significant association with the APOE epsilon 4 allele (0.40 +/- 0.026, p < or = 0.00001). These data support the involvement of ApoE epsilon 4 in the pathogenesis of late-onset familial and sporadic AD. ApoE isoforms may play an important role in the metabolism of beta-peptide, and APOE epsilon 4 may operate as a susceptibility gene (risk factor) for the clinical expression of AD.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1212/wnl.43.8.1467

Cites

29 of 29 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • The greatest risk factors for late-onset Alzheimer's are older age, genetics (especially the e4 form of the APOE gene), and having a family history of Alzheimer's.

    “The greatest risk factors for late-onset Alzheimer's are older age, 62,63 genetics 64,65 -especially the e4 form of the apolipoprotein E (APOE) gene -and having a family history of Alzheimer's.[66][67][68][69]”

    From 2023 Alzheimer's disease facts and figures (2023) · cites this paper as [64]

    The Abstract and Statistical analysis section identify APOE ε4 as a susceptibility factor for late-onset familial and sporadic Alzheimer’s disease and discuss clustering in families. They do not establish that having a family history is itself one of the greatest risk factors; the paper also does not rank these factors against older age. (LLM, conf=0.81)

    Experimental — accuracy not yet measured
  • Between 45% and 50% of Alzheimer's disease patients carry at least one APOE4 allele compared to only 15% of age-matched healthy controls.

    “Between 45% and 50% of AD patients carry at least one APOE4 allele compared to only 15% of age-matched healthy controls.5,11”

    From AAVrh.10-Mediated APOE2 Central Nervous System Gene Therapy for APOE4-Associated Alzheimer's Disease (2018) · cites this paper as [5]

    The Statistical analysis table reports that APOE ε4 is more frequent in late-onset and sporadic AD groups than in controls. But its figures are allele frequencies, not percentages of people carrying at least one ε4 allele: it reports 0.36–0.42 for the AD groups and 0.16 for CEPH controls. The claimed 45%–50% versus 15% carrier comparison is therefore not established by this paper. (LLM, conf=0.88)

    Experimental — accuracy not yet measured
  • The major risk factor for Alzheimer's disease is inheritance of the E4 allele of apolipoprotein E (APOE).

    “The major risk factor for AD is inheritance of the E4 allele of apolipoprotein E (APOE).5,6”

    From AAVrh.10-Mediated APOE2 Central Nervous System Gene Therapy for APOE4-Associated Alzheimer's Disease (2018) · cites this paper as [5]

    The Abstract and the section labelled Statistical analysis report an association between APOE ε4 and late-onset familial and sporadic Alzheimer’s disease, and describe ε4 as a possible susceptibility gene or risk factor. They do not establish that it is the major risk factor for Alzheimer’s disease generally; the paper also reports no significant association in its combined early-onset familial groups. The indexed passages provide no page number. (LLM, conf=0.86)

    Experimental — accuracy not yet measured
  • The APOE ε4 allele is the strongest genetic risk factor for late-onset, sporadic Alzheimer's disease.

    “The apolipoprotein E (APOE) ε4 allele is the strongest genetic risk factor for late-onset, sporadic Alzheimer’s disease (AD).”

    From Human ApoE isoforms differentially regulate brain amyloid-β peptide clearance (2011) · cites this paper as [3]

    The Abstract reports a significant association between APOE ε4 and sporadic Alzheimer’s disease, and the Statistical analysis section describes ε4 as a possible susceptibility gene or risk factor. Neither passage compares it with other genetic risk factors or establishes that it is the strongest. (LLM, conf=0.89)

    Experimental — accuracy not yet measured
  • The APOE ε4 allele dramatically increases AD risk and decreases age of onset by 10 to 15 years.

    “the presence of which dramatically increases risk for developing AD and decreases age of onset by 10 to 15 years”

    From Human ApoE isoforms differentially regulate brain amyloid-β peptide clearance (2011) · cites this paper as [3]

    The Abstract and Results report a significant association between APOE ε4 and late-onset familial and sporadic AD, supporting the increased-risk portion of the claim. They do not report that ε4 decreases age of onset by 10–15 years; the discussion instead links earlier onset to APP mutations. Passage page numbers are not provided in our copy. (LLM, conf=0.88)

    Experimental — accuracy not yet measured

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

Research works printed but not linked: 27

  1. [1]1. Neurology 1989;39: 125-126.
  2. [5]5. Sheskin D. Statistical tests and experimental design: a case- book. New York: Gardner Press, 1984:23-24.
  3. [7]7. Jennett B, Plum F. Persistent vegetative state after brain damage: a syndrome in search of a name. Lancet 1972; 1:734-737.
  4. [8]8. New "Baby Doe" rules tested. Am Med News 1986;1:45.
  5. [9]9. Teasdale G, Jennett B. Assessment of coma and impaired consciousness: a practical scale. Lancet 1974;2:81-83.
  6. [10]10. Sazbon L. Prolonged coma. Prog Clin Neurosci 1985;2:65-81.
  7. [11]11. Sazbon L, Groswasser Z. Outcome in 134 patients with pro- longed posttraumatic unawareness. Part 1: parameters determining late recovery of consciousness. J Neurosurg 1990;72:75-80.
  8. [12]12. Bricolo A, Turazzi S, Feriotti G. Prolonged posttraumatic unconsciousness: therapeutic assets and liabilities. J Neuro- surg 1980;52:625-634.
  9. [14]14. Hagen C. Language disorders secondary t o closed head injury: diagnosis and treatment. Top Lang Dis 1981;1:73-87.
  10. [15]15. Alexander MP. Traumatic brain injury. In: Benson DF, Blumer D, eds. Psychiatric aspects of neurologic disease, vol. 2. New York: Grune & Stratton, 1982:219-247.
  11. [18]18. Lehman LB. The persistent vegetative state. Postgrad Med 1990;88: 150,152.
  12. [19]19. Berrol S. Considerations for management of the persistent vegetative state. Arch Phys Med Rehabil 1986;67:283-285. 1992;73:628-634. References 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12
  13. [21]21. Goate A, Chartier-Harlin MC, Mullan M, et al. Segregation of a missense mutation in the amyloid precursor protein gene with familial Alzheimer's disease. Nature Naruse S, Igarashi S , Aoki K, et al. Mis-sense mutation Val bIle in exon 17 of amyloid precursor protein gene in Japanese familial Alzheimer's disease. Lancet 1991;337:978- 979.
  14. [22]22. Chartier-Harlin M-C, Crawford F, Houlden H, et al. Early- onset Alzheimer's disease caused by mutations at codon 717 of t h e P-amyloid precursor protein gene. Nature Murrell J, Farlow M, Ghetti B, Benson MD. A mutation in the amyloid precursor protein associated with hereditary Alzheimer's disease. Science 1991;254:97-99.
  15. [24]24. Karlinsky H, Vaula G, Haines JL, et al. Molecular and prospective phenotypic characterization of a pedigree with familial Alzheimer's disease and a missense mutation in codon 717 of t h e P-amyloid precursor protein gene. Neurology 1992;42:1445-1453.
  16. [25]25. Hendriks L, van Duijn CM, Cras P, et al. Presenile demen- tia and cerebral haemorrhage linked to a mutation at codon 692 of the P-amyloid precursor protein. Nature Genet Mullan M, Crawford F, Axelman K, e t al. A pathogenic mutation for probable Alzheimer's disease in the APP gene at the N-terminus of P-amyloid. Nature Genet 1992;1:345- 347.
  17. [29]29. S t r i t t m a t WJ, Saunders AM, Schmechel D, e t al. Apolipoprotein E: high affinity binding to PA amyloid and August 1993 NEUROLOGY 43 1471 1991;349:704-706. 1991;353:844-846. 19923 :218-221. increased frequency of type 4 allele in familial Alzheimer's. Proc Natl Acad Sci USA 1993;90:1977-1981.
  18. [30]30. Ropers HH, Pericak-Vance MA. Report o f the committee on the genetic constitution o f chromosome 19. Human Gene Mapping 11 (1991). Cytogenet Cell Genet 1991;58:751-784.
  19. [32]32. Namba Y, Tomonaga M, Kawasaki H, Otomo E, Ikeda K. Apolipoprotein E immunoreactivity in cerebral amyloid deposits and neurofibrillary tangles in Alzheimer's disease and kuru plaque amyloid in Creutzfeld-Jakob disease. Brain Res 1991;541:163-166.
  20. [35]35. McKhann G, Drachman D, Folstein M, Katzman R, Price D, Stadlan EM. Clinical diagnosis of Alzheimer's disease: report of the NINCDS-ADRDA Work Group under the aus- pices of Department o f Health and Human Services Task Force on Alzheimer's disease. Neurology 1984;34:939-944.
  21. [38]38. Pericak-Vance MA, Yamaoka LH, Assinder RIF, et al. Tight linkage of apolipoprotein C2 to myotonic dystrophy on chro- mosome 19. Neurology 1986;36: 1418-1423.
  22. [45]45. Lathrop GM, Lalouel JM. Easy calculations of lad scores and genetic risks on small computers. Am J Hum Genet 31. Lathrop GM, Lalouel JM, Julier C, Ott J . Strategies for mul- 1990;6:575-577. 1988;102:271-279. 1984;36:460-465. tilocus linkage analysis in humans. Proc Natl Acad Sci USA
  23. [47]47. Ehnholm C, Lukka M, Kuusi T, Nikkila E, Utermann G. Apolipoprotein E polymorphisms in Finland. In: Fidge NH, Nestel P J , eds. Excerpta medica: Atherosclerosis VII. Amsterdam: Elsevier, 1986:325-328.
  24. [48]48. Mahley RW, Rall SC. Type 111 hyperlipoproteinemia (dys- betalipoproteinemia): the role of apolipoprotein E in normal and abnormal lipoprotein metabolism. In: Scriver CR, Beaudet AL, Sly WS, Valle D, eds. The metabolic basis of inherited disease. 6 t h ed. New York: McGraw-Hill, 36.
  25. [52]52. Haass C, Schlossmacher MG, Hung AY, et al. Amyloid p- peptide i s produced by cultured cells during normal metabolism. Nature 1992;359:322-325.
  26. [53]53. Seubert P, Vigo-Pelfry C, Esch F, e t al. Isolation and quan- tification of soluble Alzheimer's @-peptide from biological flu- ids. Nature 1992;359:325-327.
  27. [57]57. Schmechel DE, Saunders AM, Strittmatter WJ, e t al. Increased amyloid P-peptide deposition in cerebral cortex as a consequence of apolipoprotein E genotype in late-onset Alzheimer's disease. Proc Natl Acad Sci USA (in press). 1984;81:3443-3446. 1983;3:310-315. 1989:1195-1213. 1988;78:244-247. 1985;82:203-207.

Cited by

Sorted by citations

Authors
Saunders, A. M., Strittmatter, W. J., Schmechel, D., St. George-Hyslop, P. H., Pericak-Vance, M. A., Joo, S. H., Rosi, B. L., Gusella, J. F., Crapper-MacLachlan, D. R., Alberts, M. J., Hulette, C., Crain, B., Goldgaber, D., & Roses, A. D.
Affiliations
  • Duke University (US)
  • Departments of Medicine [Neurology] (Drs. Saunders, Strittmatter, Schmechel, Pericak-Vance, Alberts, and Roses, and S. Joo and B. Rosi), Neurobiology (Drs. Strittmatter, Schmechel, and Roses), and Pathology (Drs. Hulette and Crain), Joseph and Kathleen Bryan Alzheimer's Disease Research Center, Duke University Medical Center, Durham, NC; the Department of Medicine [Neurology] (Drs. St. George-Hyslop and Crapper-MacLachlan), Centre for Research in Neurodegenerative Disease, University of Toronto,...
Venue
Neurology
Published
1993-08
Volume
43
Issue
8
Pages
1467-1467
ISSN
  • 0028-3878 (ISSN-L)
  • 1526-632X
OpenAlex
W1999631936
Cited by
3,786
References
29
Citations by year
2026: 46 · 2025: 67 · 2024: 96 · 2023: 75 · 2022: 83 · 2021: 107 · 2020: 101 · 2019: 89 · 2018: 93 · 2017: 74 · 2016: 86 · 2015: 93 · 2014: 102 · 2013: 95 · 2012: 119
FWCI
105.77
Type
journal article
Language
en
Open access
Locations
  • Neurology (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Alzheimer's Association
  • American Health Assistance Foundation
  • Medical Research Council Canada
  • National Institutes of Health (MO1-RR-30)
  • Medical Research Council
  • National Institute on Aging (NIA AG05128, NIA AG 07922)
  • National Institute of Neurological Disorders and Stroke
  • National Center for Research Resources (M01 RR 30)
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
apolipoprotein E, APOE ε4, Alzheimer's disease, sporadic Alzheimer's disease, genetic susceptibility, amyloid-beta, APOE isoforms, allele frequency, genetic association
MeSH terms
Aged, Alleles, Alzheimer Disease, Apolipoproteins E, Female, Gene Amplification, Gene Frequency, Humans, Male, Middle Aged, Mutation

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review