Cited by 468Alzheimer's disease research and treatmentsDementia and Cognitive Impairment ResearchNeuroinflammation and Neurodegeneration Mechanisms

Relative Abundance of Alzheimer A Beta Amyloid Peptide Variants in Alzheimer Disease and normal Aging

Open access
Näslund, J, Schierhorn, A, Hellman, U, Lannfelt, L, Roses, A D, Tjernberg, L O, Silberring, J, Gandy, S E +2 more·1994·Proceedings of the National Academy of Sciences

Abstract

The Alzheimer A beta amyloid peptide (A beta) is the principal proteinaceous component of amyloid associated with Alzheimer disease (AD). We have determined the relative abundance of A beta structural variants present in amyloid from brains of 10 individuals with sporadic AD, 2 individuals with familial AD carrying specific mutations in the Alzheimer amyloid precursor protein gene, and 5 nondemented elderly controls. A procedure of isolation based on the extreme insolubility of A beta amyloid was used. The purified, nondigested A beta was analyzed by N-terminal sequencing and electrospray-ionization mass spectrometry. Three principal A beta variants were detected--A beta-(1-40), A beta-(1-42), and A beta-(11-42)--in all brains analyzed. The predominant variant in sporadic AD was A beta-(1-40), whereas the principal A beta variant in nondemented elderly controls was A beta-(1-42). The ratio A beta-(1-40)/A beta-(1-42) differed by 10-fold between brains from nondemented controls and those with sporadic AD.

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Crossref · 10.1073/pnas.91.18.8378

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Authors
Näslund, J., Schierhorn, A., Hellman, U., Lannfelt, L., Roses, A. D., Tjernberg, L. O., Silberring, J., Gandy, S. E., Winblad, B., & Greengard, P.
Affiliations
Karolinska Institutet (SE)
Venue
Proceedings of the National Academy of Sciences
Published
1994-08-30
Volume
91
Issue
18
Pages
8378-8382
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W1989972829
Cited by
468
References
27
Citations by year
2026: 4 · 2025: 13 · 2024: 13 · 2023: 31 · 2022: 19 · 2021: 16 · 2020: 13 · 2019: 20 · 2018: 17 · 2017: 25 · 2016: 12 · 2015: 18 · 2014: 9 · 2013: 10 · 2012: 20
FWCI
7.01
Type
journal article
Language
en
Open access
Locations
  • Proceedings of the National Academy of Sciences (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institutes of Health (5r01hl049571-03)
  • Medical Research Council
  • National Institute on Aging (P01AG010491, AG09464, AG10491, P01AG009464)
  • National Heart, Lung, and Blood Institute (HL 49571-02)
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 › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
Keywords
Alzheimer's disease, amyloid-beta, sporadic Alzheimer's disease, familial Alzheimer's disease, APP mutations, normal aging, amyloid precursor protein, peptide isoforms
MeSH terms
Aged, Aging, Alzheimer Disease, Amino Acid Sequence, Cerebral Cortex, Female, Humans, Male, Molecular Sequence Data, Mutation, Mass Spectrometry, Amyloid beta-Peptides, Amyloid beta-Protein Precursor

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