Evidence map›Paper›PMID 38323780›Full record

ArticleAlzheimer's & dementia : the journal of the Alzheimer's Association2024

Fully automated measurement of plasma Aβ42/40 and p-tau181: Analytical robustness and concordance with cerebrospinal fluid profile along the Alzheimer's disease continuum in two independent cohorts.

Giovanni Bellomo, Sherif Bayoumy, Alfredo Megaro, Andrea Toja, Giovanna Nardi, Lorenzo Gaetani, Elena R Blujdea, Federico Paolini Paoletti, Anna Lidia Wojdaƚa, Davide Chiasserini and 4 more

Open access · hybridAbstract read
In one paragraph

Article in Alzheimer's & dementia : the journal of the Alzheimer's Association, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed, 1 pooled it
15.0field-weighted citation impact, top 1% 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

21 citing papers in PubMed, 1 synthesis or guideline pooled it, 39 citations in OpenAlex.

  1. Pooled it
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  18. Analytical and clinical performance of eight SimoaAlzheimer's research & therapy · 2024
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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

14 authors at 2 institutions in 2 countries.

Giovanni BellomoCenter for Memory Disturbances, Lab of Clinical Neurochemistry, Section of Neurology, Department of Medicine and Surgery, University of Perugia, Perugia, Italy.ORCID 0000-0003-0456-5650
Sherif BayoumyNeurochemistry Laboratory, Department of Laboratory Medicine, Amsterdam Neuroscience, Amsterdam UMC, Amsterdam, The Netherlands.ORCID 0000-0002-3480-5136
Alfredo MegaroCenter for Memory Disturbances, Lab of Clinical Neurochemistry, Section of Neurology, Department of Medicine and Surgery, University of Perugia, Perugia, Italy.ORCID 0009-0006-3148-9568
Andrea TojaCenter for Memory Disturbances, Lab of Clinical Neurochemistry, Section of Neurology, Department of Medicine and Surgery, University of Perugia, Perugia, Italy.ORCID 0009-0000-9500-7632
Giovanna NardiCenter for Memory Disturbances, Lab of Clinical Neurochemistry, Section of Neurology, Department of Medicine and Surgery, University of Perugia, Perugia, Italy.ORCID 0009-0008-9123-9944
Lorenzo GaetaniCenter for Memory Disturbances, Lab of Clinical Neurochemistry, Section of Neurology, Department of Medicine and Surgery, University of Perugia, Perugia, Italy.ORCID 0000-0003-3967-8954
Elena R BlujdeaNeurochemistry Laboratory, Department of Laboratory Medicine, Amsterdam Neuroscience, Amsterdam UMC, Amsterdam, The Netherlands.ORCID 0009-0001-7305-2122
Federico Paolini PaolettiCenter for Memory Disturbances, Lab of Clinical Neurochemistry, Section of Neurology, Department of Medicine and Surgery, University of Perugia, Perugia, Italy.ORCID 0000-0001-9623-1900
Anna Lidia WojdaƚaCenter for Memory Disturbances, Lab of Clinical Neurochemistry, Section of Neurology, Department of Medicine and Surgery, University of Perugia, Perugia, Italy.ORCID 0000-0002-6958-8223
Davide ChiasseriniSection of Biochemistry, Department of Medicine and Surgery, University of Perugia, Perugia, Italy.ORCID 0000-0002-1169-3258
Wiesje M van der FlierAlzheimer Center, Department of Neurology, Vrije Universiteit Amsterdam, Amsterdam UMC, Amsterdam, The Netherlands.ORCID 0000-0001-8766-6224
Inge M W VerberkNeurochemistry Laboratory, Department of Laboratory Medicine, Amsterdam Neuroscience, Amsterdam UMC, Amsterdam, The Netherlands.ORCID 0000-0003-0341-7445
Charlotte TeunissenNeurochemistry Laboratory, Department of Laboratory Medicine, Amsterdam Neuroscience, Amsterdam UMC, Amsterdam, The Netherlands.ORCID 0000-0002-4061-0837
Lucilla ParnettiCenter for Memory Disturbances, Lab of Clinical Neurochemistry, Section of Neurology, Department of Medicine and Surgery, University of Perugia, Perugia, Italy.ORCID 0000-0001-5722-3967
University of Perugia · ITAmsterdam Neuroscience · NL

Funding

European Union's Horizon 2020 860197Parkinson's Foundation PF-PRF-934916ZonMw-Memorabel 3305095003
6 · The paper itself

Abstract

introductionFor routine clinical implementation of Alzheimer's disease (AD) plasma biomarkers, fully automated random-access platforms are crucial to ensure reproducible measurements. We aimed to perform an analytical validation and to establish cutoffs for AD plasma biomarkers measured with Lumipulse.

methodsTwo cohorts were included. UNIPG: n = 450 paired cerebrospinal fluid (CSF)/plasma samples from subjects along the AD-continuum, subjects affected by other neurodegenerative diseases, and controls with known CSF profile; AMS: n = 40 plasma samples from AD and n = 40 controls. Plasma amyloid β (Aβ)42, Aβ40, and p-tau181 were measured with Lumipulse. We evaluated analytical and diagnostic performance.

resultsLumipulse assays showed high analytical performance. Plasma p-tau181 levels accurately reflected CSF A+/T+ profile in AD-dementia and mild cognitive impairment (MCI)-AD, but not in asymptomatic-AD. Plasma and CSF Aβ42/40 values were concordant across clinical AD stages. Cutoffs and probability-based models performed satisfactorily in both cohorts. DISCUSSION: The identified cutoffs and probability-based models represent a significant step toward plasma AD molecular diagnosis.

Indexed as

Alzheimer DiseaseCognitive DysfunctionAmyloid beta-PeptidesBiomarkersHumanstau ProteinsAmyloid beta-PeptidesBiomarkerstau ProteinsAlzheimer's diseaseautomated platformsAβplasma biomarkersp‐tau

Identifiers

PMID38323780
PMCPMC11032583
OpenAlexW4391602271

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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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.