Evidence map›Paper›PMID 10934165›Full record

ArticleThe American journal of pathology2000

Staging of cytoskeletal and beta-amyloid changes in human isocortex reveals biphasic synaptic protein response during progression of Alzheimer's disease.

E B Mukaetova-Ladinska, F Garcia-Siera, J Hurt, H J Gertz, J H Xuereb, R Hills, C Brayne, F A Huppert, E S Paykel, M McGee and 4 more

Open access · bronzeAbstract read
In one paragraph

Article in The American journal of pathology, 2000. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 81 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
81citing papers in PubMed, 1 pooled it
3.5field-weighted citation impact, top 7% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

81 citing papers in PubMed, 1 synthesis or guideline pooled it, 188 citations in OpenAlex.

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  20. Age-Related Cognitive Impairment: Role of Reduced Synaptobrevin-2 Levels in Deficits of Memory and Synaptic Plasticity.The journals of gerontology. Series A, Biological sciences and medical sciences · 2020
    Article

21 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

14 authors at 7 institutions in 4 countries.

E B Mukaetova-LadinskaDepartment of Psychiatry, University of Cambridge, Cambridge, United Kingdom.
F Garcia-Siera
J Hurt
H J Gertz
J H Xuereb
R Hills
C Brayne
F A Huppert
E S Paykel
M McGee
R Jakes
W G Honer
C R Harrington
C M Wischik
University of Cambridge · GBUniversity of Aberdeen · GBCentro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional · MXLeipzig University · DEMRC Biostatistics Unit · GBMRC Laboratory of Molecular Biology · GBUniversity of British Columbia · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

We have examined the relationships between dementia, loss of synaptic proteins, changes in the cytoskeleton, and deposition of beta-amyloid plaques in the neocortex in a clinicopathologically staged epidemiological cohort using a combination of biochemical and morphometric techniques. We report that loss of synaptic proteins is a late-stage phenomenon, occurring only at Braak stages 5 and 6, or at moderate to severe clinical grades of dementia. Loss of synaptic proteins was seen only after the emergence of the full spectrum of tau and beta-amyloid pathology in the neocortex at stage 4, but not in the presence of beta-amyloid plaques alone. Contrary to previous studies, we report increases in the levels of synaptophysin, syntaxin, and SNAP-25 at stage 3 and of alpha-synuclein and MAP2 at stage 4. Minimal and mild clinical grades of dementia were associated with either unchanged or elevated levels of synaptic proteins in the neocortex. Progressive aggregation of paired helical filament (PHF)-tau protein could be detected biochemically from stage 2 onwards, and this was earliest change relative to the normal aging background defined by Braak stage 1 that we were able to detect in the neocortex. These results are consistent with the possibility that failure of axonal transport associated with early aggregation of tau protein elicits a transient adaptive synaptic response to partial de-afferentation that may be mediated by trophic factors. This early abnormality in cytoskeletal function may contribute directly to the earliest clinically detectable stages of dementia.

Indexed as

alpha-SynucleinAlzheimer DiseaseAmyloid beta-PeptidesCytoskeletonDisease ProgressionFemaleHumansMaleMembrane ProteinsMicrotubule-Associated ProteinsNeocortexNerve Tissue ProteinsNeurofibrillary TanglesPhosphorylationPlaque, AmyloidQa-SNARE Proteinsalpha-SynucleinAmyloid beta-PeptidesMembrane ProteinsMicrotubule-Associated ProteinsNerve Tissue ProteinsQa-SNARE ProteinsSNAP25 protein, humanSNCA protein, humanSynaptophysinSynaptosomal-Associated Protein 25Synucleinstau Proteins

Identifiers

PMID10934165
PMCPMC1850134
OpenAlexW2131897453

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.