Evidence map›Paper›PMID 22905234›Full record

ArticlePloS one2012

Amyloid-β acts as a regulator of neurotransmitter release disrupting the interaction between synaptophysin and VAMP2.

Claire L Russell, Sophia Semerdjieva, Ruth M Empson, Brian M Austen, Philip W Beesley, Pavlos Alifragis

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 68 papers.

0numbers the graph read from it
0cells of the map it votes in
68citing papers in PubMed
3.4field-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

68 citing papers in PubMed, 126 citations in OpenAlex.

  1. Article
  2. Article
  3. Decoding the mechanisms of amyloid-β in synaptic toxicity.Journal of Alzheimer's disease : JAD · 2026
    Review
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  8. CaCell reports · 2025
    Article
  9. Article
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  11. Review
  12. Nanoelectrochemistry reveals how soluble AβProceedings of the National Academy of Sciences of the United States of America · 2023
    Article
  13. Review
  14. Article
  15. Review
  16. Article
  17. Review
  18. Article
  19. Article
  20. Review

8 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

6 authors at 2 institutions in 2 countries.

Claire L RussellSchool of Biological Sciences, Royal Holloway University London, Surrey, United Kingdom.
Sophia Semerdjieva
Ruth M Empson
Brian M Austen
Philip W Beesley
Pavlos Alifragis
Royal Holloway University of London · GBSt George's, University of London · GB

Funding

Biotechnology and Biological Sciences Research Council
6 · The paper itself

Abstract

backgroundIt is becoming increasingly evident that deficits in the cortex and hippocampus at early stages of dementia in Alzheimer's disease (AD) are associated with synaptic damage caused by oligomers of the toxic amyloid-β peptide (Aβ42). However, the underlying molecular and cellular mechanisms behind these deficits are not fully understood. Here we provide evidence of a mechanism by which Aβ42 affects synaptic transmission regulating neurotransmitter release. METHODOLOGY/

findingsWe first showed that application of 50 nM Aβ42 in cultured neurones is followed by its internalisation and translocation to synaptic contacts. Interestingly, our results demonstrate that with time, Aβ42 can be detected at the presynaptic terminals where it interacts with Synaptophysin. Furthermore, data from dissociated hippocampal neurons as well as biochemical data provide evidence that Aβ42 disrupts the complex formed between Synaptophysin and VAMP2 increasing the amount of primed vesicles and exocytosis. Finally, electrophysiology recordings in brain slices confirmed that Aβ42 affects baseline transmission. CONCLUSIONS/SIGNIFICANCE: Our observations provide a necessary and timely insight into cellular mechanisms that underlie the initial pathological events that lead to synaptic dysfunction in Alzheimer's disease. Our results demonstrate a new mechanism by which Aβ42 affects synaptic activity.

Indexed as

Alzheimer DiseaseAmyloid beta-PeptidesAnimalsCHO CellsCricetinaeElectrophysiologyExocytosisHippocampusNeuronsNeurotransmitter AgentsPeptidesRatsRats, Sprague-DawleySynaptic TransmissionSynaptophysinVesicle-Associated Membrane Protein 2Amyloid beta-PeptidesNeurotransmitter AgentsPeptidesSynaptophysinVamp2 protein, ratVesicle-Associated Membrane Protein 2

Identifiers

PMID22905234
PMCPMC3419646
OpenAlexW2150106491

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.