Evidence map›Paper›PMID 35318733›Full record

ArticleMovement disorders : official journal of the Movement Disorder Society2022

A Longitudinal Study of Plasma pTau181 in Mild Cognitive Impairment with Lewy Bodies and Alzheimer's Disease.

Alan J Thomas, Calum A Hamilton, Amanda Heslegrave, Sally Barker, Rory Durcan, Sarah Lawley, Nicola Barnett, Debbie Lett, Michael Firbank, Gemma Roberts and 4 more

Open access · hybridAbstract read
In one paragraph

Article in Movement disorders : official journal of the Movement Disorder Society, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
3.3field-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

20 citing papers in PubMed, 31 citations in OpenAlex.

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  14. Plasma biomarkers of Alzheimer's disease in the continuum of dementia with Lewy bodies.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2024
    Article
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  16. Article
  17. Mild cognitive impairment in dementia with Lewy bodies: an update and outlook.Journal of neural transmission (Vienna, Austria : 1996) · 2023
    Review
  18. Article
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  20. Review
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 5 institutions in 3 countries.

Alan J ThomasTranslational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, United Kingdom.
Calum A HamiltonTranslational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, United Kingdom.ORCID 0000-0002-9812-3150
Amanda HeslegraveUK Dementia Research Institute at UCL, London, United Kingdom.
Sally BarkerTranslational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, United Kingdom.
Rory DurcanTranslational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, United Kingdom.
Sarah LawleyTranslational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, United Kingdom.
Nicola BarnettTranslational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, United Kingdom.
Debbie LettTranslational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, United Kingdom.
Michael FirbankTranslational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, United Kingdom.ORCID 0000-0002-9536-0185
Gemma RobertsTranslational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, United Kingdom.ORCID 0000-0002-6445-4023
John-Paul TaylorTranslational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, United Kingdom.
Paul C DonaghyTranslational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, United Kingdom.
Henrik ZetterbergUK Dementia Research Institute at UCL, London, United Kingdom.
John O'BrienDepartment of Psychiatry, University of Cambridge School of Clinical Medicine, Cambridge, United Kingdom.
Newcastle University · GBNewcastle upon Tyne Hospitals NHS Foundation Trust · GBSahlgrenska University Hospital · SEUK Dementia Research Institute · GBUniversity of Cambridge · GB

Funding

Department of Health
6 · The paper itself

Abstract

backgroundAlzheimer's disease (AD) co-pathology is common in dementia with Lewy bodies and is associated with increased decline. Plasma pTau181 is a blood-based biomarker that can detect AD co-pathology.

objectivesWe investigated whether pTau181 was associated with cognitive decline in mild cognitive impairment with Lewy bodies (MCI-LB) and MCI with AD (MCI-AD).

methodsWe assessed plasma pTau181 using a single-molecule array (Simoa) immunoassay at baseline and follow-up in a longitudinal cohort of MCI-LB, MCI-AD, and controls.

resultsOne hundred forty-six subjects (56 probable MCI-LB, 22 possible MCI-LB, 44 MCI-AD, and 24 controls) were reviewed for up to 5.7 years. Probable MCI-LB had significantly higher pTau181 (22.2% mean increase) compared with controls and significantly lower (24.4% mean decrease) levels compared with MCI-AD. Receiver operating characteristic analyses of pTau181 in discriminating probable MCI-LB from controls showed an area under the curve (AUC) of 0.68 (83% specificity, 57% sensitivity); for discriminating MCI-AD from healthy controls, AUC was 0.8 (83.3% specificity, 72.7% sensitivity). pTau181 concentration was less useful in discriminating between probable MCI-LB and MCI-AD: AUC of 0.64 (71.4% specificity, 52.3% sensitivity). There was an association between pTau181 and cognitive decline in MCI-AD but not in MCI-LB. In a subset with repeat samples there was a nonsignificant 3% increase per follow-up year in plasma pTau181. The rate of change in pTau181 was not significantly different in different diagnostic subgroups.

conclusionspTau181 was not associated with an increased decline assessed using either baseline or repeat pTau181. pTau181 partially discriminated probable MCI-LB from controls and MCI-AD from controls but was not useful in distinguishing probable MCI-LB from MCI-AD. © 2022 The Authors. Movement Disorders published by Wiley Periodicals LLC on behalf of International Parkinson and Movement Disorder Society.

Indexed as

Alzheimer DiseaseCognitive DysfunctionLewy Body DiseaseHumansLewy BodiesLongitudinal Studiesbiomarkersdementia with Lewy bodiesmild cognitive impairmentplasmapTau181

Identifiers

PMID35318733
PMCPMC9540809
OpenAlexW4220787514

What Socratic 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 Socratic graph.