Cited by 124Alzheimer's disease research and treatmentsDementia and Cognitive Impairment ResearchAdvanced Proteomics Techniques and Applications

Proteomic Changes in Cerebrospinal Fluid of Presymptomatic and Affected Persons Carrying Familial Alzheimer Disease Mutations

Open access
Ringman, John M.·2012·Archives of Neurology

Abstract

OBJECTIVE: To identify cerebrospinal fluid (CSF) protein changes in persons who will develop familial Alzheimer disease (FAD) due to PSEN1 and APP mutations, using unbiased proteomics. DESIGN: We compared proteomic profiles of CSF from individuals with FAD who were mutation carriers (MCs) and related noncarriers (NCs). Abundant proteins were depleted and samples were analyzed using liquid chromatography-electrospray ionization-mass spectrometry on a high-resolution time-of-flight instrument. Tryptic peptides were identified by tandem mass spectrometry. Proteins differing in concentration between the MCs and NCs were identified. SETTING: A tertiary dementia referral center and a proteomic biomarker discovery laboratory. PARTICIPANTS: Fourteen FAD MCs (mean age, 34.2 years; 10 are asymptomatic, 12 have presenilin-1 [PSEN1 ] gene mutations, and 2 have amyloid precursor protein [APP ] gene mutations) and 5 related NCs (mean age, 37.6 years). RESULTS: Fifty-six proteins were identified, represented by multiple tryptic peptides showing significant differences between MCs and NCs (46 upregulated and 10 downregulated); 40 of these proteins differed when the analysis was restricted to asymptomatic individuals. Fourteen proteins have been reported in prior proteomic studies in late-onset AD, including amyloid precursor protein, transferrin, α(1)β-glycoprotein, complement components, afamin precursor, spondin 1, plasminogen, hemopexin, and neuronal pentraxin receptor. Many other proteins were unique to our study, including calsyntenin 3, AMPA (α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid) 4 glutamate receptor, CD99 antigen, di- N-acetyl-chitobiase, and secreted phosphoprotein 1. CONCLUSIONS: We found much overlap in CSF protein changes between individuals with presymptomatic and symptomatic FAD and those with late-onset AD. Our results are consistent with inflammation and synaptic loss early in FAD and suggest new presymptomatic biomarkers of potential usefulness in drug development.

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 · 10.1001/archneurol.2011.642

Cites

32 of 32 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?

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

1 of the 33 references couldn’t be matched to a known paper.

Cited by

Sorted by citations

Authors
Ringman, J. M.
Affiliations
University of California, Los Angeles (US)
Corresponding author
Ringman, John M.
Venue
Archives of Neurology
Published
2012-01-01
Volume
69
Issue
1
Pages
96
ISSN
0003-9942 (ISSN-L)
OpenAlex
W2153569004
Cited by
124
References
33
Citations by year
2026: 1 · 2025: 3 · 2024: 5 · 2023: 6 · 2022: 8 · 2021: 9 · 2020: 10 · 2019: 8 · 2018: 11 · 2017: 12 · 2016: 7 · 2015: 13 · 2014: 11 · 2013: 6 · 2012: 14
FWCI
9.43
Type
journal article
Language
en
Open access
Locations
  • Archives of Neurology (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Institutes of Health (7rc2ns069502-02, UL1TR000124)
  • National Institute on Aging (K08 AG-22228, K08AG022228, P50AG016570, P50-AG 16570)
  • National Institute of Neurological Disorders and Stroke (RC2 NS069502, 5RC2NS069502)
  • National Center for Research Resources ((M01 RR00865), M01RR000865)
  • National Center for Advancing Translational Sciences
Topics
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Health Sciences › Medicine › Psychiatry and Mental health › Dementia and Cognitive Impairment Research
  • Physical Sciences › Chemistry › Spectroscopy › Advanced Proteomics Techniques and Applications
Keywords
familial Alzheimer's disease, cerebrospinal fluid proteome, presymptomatic biomarkers, PSEN1 mutations, APP mutations, presenilin 1, amyloid precursor protein, late-onset Alzheimer's disease, inflammation, synaptic loss, AMPA receptors, osteopontin, neurodegeneration
MeSH terms
Adult, Alzheimer Disease, Cerebrospinal Fluid Proteins, Chromatography, Liquid, DNA Mutational Analysis, Female, Humans, Male, Middle Aged, Models, Biological, Mutation, Peptide Fragments, Amyloid beta-Peptides, Amyloid beta-Protein Precursor, tau Proteins, Statistics, Nonparametric, Proteomics, Tandem Mass Spectrometry, Presenilin-1

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