Evidence map›Paper›PMID 33928245›Full record

ArticleBrain communications2021

Quantification of N-terminal amyloid-β isoforms reveals isomers are the most abundant form of the amyloid-β peptide in sporadic Alzheimer's disease.

Soumya Mukherjee, Keyla A Perez, Larissa C Lago, Stephan Klatt, Catriona A McLean, Ian E Birchall, Kevin J Barnham, Colin L Masters, Blaine R Roberts

Open access · goldAbstract read
In one paragraph

Article in Brain communications, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
3.7field-weighted citation impact, top 6% 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

28 citing papers in PubMed, 47 citations in OpenAlex.

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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

9 authors at 2 institutions in 2 countries.

Soumya MukherjeeFlorey Institute of Neuroscience and Mental Health, University of Melbourne, Melbourne, VIC 3010, Australia.ORCID https://orcid.org/0000-0001-5326-4008
Keyla A PerezFlorey Institute of Neuroscience and Mental Health, University of Melbourne, Melbourne, VIC 3010, Australia.
Larissa C LagoFlorey Institute of Neuroscience and Mental Health, University of Melbourne, Melbourne, VIC 3010, Australia.
Stephan KlattFlorey Institute of Neuroscience and Mental Health, University of Melbourne, Melbourne, VIC 3010, Australia.ORCID https://orcid.org/0000-0003-0064-3367
Catriona A McLeanFlorey Institute of Neuroscience and Mental Health, University of Melbourne, Melbourne, VIC 3010, Australia.
Ian E BirchallFlorey Institute of Neuroscience and Mental Health, University of Melbourne, Melbourne, VIC 3010, Australia.ORCID https://orcid.org/0000-0002-0124-626X
Kevin J BarnhamFlorey Institute of Neuroscience and Mental Health, University of Melbourne, Melbourne, VIC 3010, Australia.ORCID https://orcid.org/0000-0003-1164-9465
Colin L MastersFlorey Institute of Neuroscience and Mental Health, University of Melbourne, Melbourne, VIC 3010, Australia.ORCID https://orcid.org/0000-0003-3072-7940
Blaine R RobertsFlorey Institute of Neuroscience and Mental Health, University of Melbourne, Melbourne, VIC 3010, Australia.ORCID https://orcid.org/0000-0001-5466-0053
The University of Melbourne · AUEmory University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Plaques that characterize Alzheimer's disease accumulate over 20 years as a result of decreased clearance of amyloid-β peptides. Such long-lived peptides are subjected to multiple post-translational modifications, in particular isomerization. Using liquid chromatography ion mobility separations mass spectrometry, we characterized the most common isomerized amyloid-β peptides present in the temporal cortex of sporadic Alzheimer's disease brains. Quantitative assessment of amyloid-β N-terminus revealed that > 80% of aspartates (Asp-1 and Asp-7) in the N-terminus was isomerized, making isomerization the most dominant post-translational modification of amyloid-β in Alzheimer's disease brain. Total amyloid-β

Indexed as

Alzheimer’s diseaseamyloid-βisomerizationlong-lived peptidemass spectrometrypeptide

Identifiers

PMID33928245
PMCPMC8062259
OpenAlexW3138745875

What OpenQuestion holds

Textmetadata
LicenceCC BY
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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.