Evidence map›Paper›PMID 34311775›Full record

ArticleAlzheimer's research & therapy2021

Plasma amyloid-β oligomerization assay as a pre-screening test for amyloid status.

Rosha Babapour Mofrad, Philip Scheltens, SangYun Kim, Sungmin Kang, Young Chul Youn, Seong Soo A An, Jori Tomassen, Bart N M van Berckel, Pieter Jelle Visser, Wiesje M van der Flier and 1 more

Open access · goldAbstract read
In one paragraph

Article in Alzheimer's research & therapy, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed
3.1field-weighted citation impact, top 8% 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

26 citing papers in PubMed, 37 citations in OpenAlex.

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  20. Dynamic observations of various oligomers in amyloidBiochemistry and biophysics reports · 2022
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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

11 authors at 6 institutions in 2 countries.

Rosha Babapour MofradNeurochemistry Laboratory and Biobank, Department of Clinical Chemistry, Amsterdam Neuroscience, VU University Medical Center, Amsterdam UMC, Amsterdam, The Netherlands. r.babapourmofrad@amsterdamumc.nl.ORCID 0000-0001-6195-5191
Philip ScheltensAlzheimer Center & Department of Neurology Amsterdam, Neuroscience Campus Amsterdam Neuroscience, VU University Medical Center, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam, the Netherlands.
SangYun KimDepartment of Neurology, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Gyeonggi-do, Republic of Korea.
Sungmin KangDepartment of Research and Development, PeopleBio Inc, Seongnam-si, Republic of Korea.
Young Chul YounDepartment of Neurology, Chung-Ang University College of Medicine, Seoul, Republic of Korea.
Seong Soo A AnDepartment of Bionanotechnology, Gachon University, Incheon, Republic of Korea.
Jori TomassenAlzheimer Center & Department of Neurology Amsterdam, Neuroscience Campus Amsterdam Neuroscience, VU University Medical Center, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam, the Netherlands.
Bart N M van BerckelDepartment of Radiology & Nuclear Medicine, Amsterdam Neuroscience, Vrije Universiteit Amsterdam, Amsterdam UMC, Amsterdam, The Netherlands.
Pieter Jelle VisserAlzheimer Center & Department of Neurology Amsterdam, Neuroscience Campus Amsterdam Neuroscience, VU University Medical Center, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam, the Netherlands.
Wiesje M van der FlierAlzheimer Center & Department of Neurology Amsterdam, Neuroscience Campus Amsterdam Neuroscience, VU University Medical Center, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam, the Netherlands.
Charlotte E TeunissenNeurochemistry Laboratory and Biobank, Department of Clinical Chemistry, Amsterdam Neuroscience, VU University Medical Center, Amsterdam UMC, Amsterdam, The Netherlands.
Amsterdam Neuroscience · NLChung-Ang University · KRGachon University · KRMaastricht University · NLPeopleBio (South Korea) · KRSeoul National University Bundang Hospital · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveWe assessed the performance of plasma amyloid oligomerization tendency (OAβ) as a marker for abnormal amyloid status. Additionally, we examined long-term storage effects on plasma OAβ.

methodsWe included 399 subjects regardless of clinical diagnosis from the Amsterdam Dementia Cohort and European Medical Information Framework for AD project (age, 63.8 ± 6.6; 44% female). Amyloid status was determined by visual read on positron emission tomography (PET; n

resultsMDS-OAβ was higher in individuals with abnormal amyloid, and it identified abnormal Aβ-PET with an area under the curve (AUC) of 0.74 (95% CI, 0.67-0.81), especially in samples with a storage duration < 4 years. Combining APOEe4 and age with plasma MDS-OAβ revealed an AUC of 81% for abnormal amyloid PET status (95% CI, 74-87%). Plasma MDS-OAβ correlated negatively with MMSE (r = - 0.29, p < .01) and CSF Aβ42 (r = - 0.20, p < 0.05) and positively with CSF Tau (r = 0.20, p = 0.01).

conclusionsPlasma MDS-OAβ combined with APOEe4 and age accurately identifies brain amyloidosis in a large Aβ-confirmed population. Using plasma MDS-OAβ as a screener reduced the costs and number of PET scans needed to screen for amyloidosis, which is relevant for clinical trials. Additionally, plasma MDS-OAβ levels appeared affected by long-term storage duration, which could be of interest for others measuring plasma Aβ biomarkers.

Indexed as

Alzheimer DiseaseAmyloidosisAgedAmyloidAmyloid beta-PeptidesBiomarkersFemaleHumansMaleMiddle AgedPeptide FragmentsPositron-Emission Tomographytau ProteinsAmyloidAmyloid beta-PeptidesBiomarkersPeptide Fragmentstau ProteinsAmyloid statusBlood-based biomarkerLong-term storageMultimer detection systemPlasma Aβ oligomer

Identifiers

PMID34311775
PMCPMC8311929
OpenAlexW3113024939

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.