Evidence map›Paper›PMID 28349119›Full record

ArticleAlzheimer's & dementia (Amsterdam, Netherlands)2017

A multinational study distinguishing Alzheimer's and healthy patients using cerebrospinal fluid tau/Aβ42 cutoff with concordance to amyloid positron emission tomography imaging.

Yi Mo, Julie Stromswold, Kimberly Wilson, Daniel Holder, Cyrille Sur, Omar Laterza, Mary J Savage, Arie Struyk, Philip Scheltens, Charlotte E Teunissen and 17 more

Abstract read
In one paragraph

Article in Alzheimer's & dementia (Amsterdam, Netherlands), 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
–field-weighted citation impact
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

12 citing papers in PubMed.

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  9. Concordance of Lumipulse cerebrospinal fluid t-tau/Aβ42 ratio with amyloid PET status.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2020
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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

27 authors.

Yi MoMerck & Co. Inc., Kenilworth, NJ, USA.
Julie StromswoldMerck & Co. Inc., Kenilworth, NJ, USA.
Kimberly WilsonMerck & Co. Inc., Kenilworth, NJ, USA.
Daniel HolderMerck & Co. Inc., Kenilworth, NJ, USA.
Cyrille SurMerck & Co. Inc., Kenilworth, NJ, USA.
Omar LaterzaMerck & Co. Inc., Kenilworth, NJ, USA.
Mary J SavageMerck & Co. Inc., Kenilworth, NJ, USA.
Arie StruykMerck & Co. Inc., Kenilworth, NJ, USA.
Philip ScheltensDepartment of Neurology, VU University Medical Center, Amsterdam, The Netherlands.
Charlotte E TeunissenNeurochemistry Laboratory and Biobank, Department of Clinical Chemistry, VU University Medical Center, Amsterdam, The Netherlands.
James BurkeDuke Neurology, Duke University, Durham, NC, USA.
S Lance MacaulayCommonwealth Scientific and Industrial Research Organization, Parkville, Victoria, Australia.
Geir BråthenDepartment of Neuroscience, Faculty of Medicine, Norwegian University of Science and Technology, Trondheim, Norway; Department of Neurology, University Hospital of Trondheim, Trondheim, Norway.
Sigrid Botne SandoDepartment of Neuroscience, Faculty of Medicine, Norwegian University of Science and Technology, Trondheim, Norway; Department of Neurology, University Hospital of Trondheim, Trondheim, Norway.
Linda R WhiteDepartment of Neuroscience, Faculty of Medicine, Norwegian University of Science and Technology, Trondheim, Norway; Department of Neurology, University Hospital of Trondheim, Trondheim, Norway.
Christy WeissLuminex, Austin, TX, USA.
Arturo CowesLuminex, Austin, TX, USA.
Michele M BushLuminex, Austin, TX, USA.
Ganga DeSilvaLuminex, Austin, TX, USA.
David G DarbyThe Florey Institute of Neuroscience and Mental Health, University of Melbourne, Parkville, Victoria, Australia.
Stephanie R Rainey-SmithCentre of Excellence for Alzheimer's Disease Research and Care, Edith Cowan University, Joondalup, Western Australia, Australia.
Jackie SurlsLuminex, Austin, TX, USA.
Eileen SaginiLuminex, Austin, TX, USA.
Michael TanenMerck & Co. Inc., Kenilworth, NJ, USA.
Amy AltmanLuminex, Austin, TX, USA.
Johan LuthmanMerck & Co. Inc., Kenilworth, NJ, USA.
Michael F EganMerck & Co. Inc., Kenilworth, NJ, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionChanges in cerebrospinal fluid (CSF) tau and amyloid β (Aβ)42 accompany development of Alzheimer's brain pathology. Robust tau and Aβ42 immunoassays were developed to establish a tau/Aβ42 cutoff distinguishing mild-to-moderate Alzheimer's disease (AD) subjects from healthy elderly control (HC) subjects.

methodsA CSF tau/Aβ42 cutoff criteria was chosen, which distinguished the groups and maximized concordance with amyloid PET. Performance was assessed using an independent validation cohort.

resultsA tau/Aβ42 = 0.215 cutoff provided 94.8% sensitivity and 77.7% specificity. Concordance with PET visual reads was estimated at 86.9% in a ∼50% PET positive population. In the validation cohort, the cutoff demonstrated 78.4% sensitivity and 84.9% specificity to distinguish the AD and HC populations. DISCUSSION: A tau/Aβ42 cutoff with acceptable sensitivity and specificity distinguished HC from mild-to-moderate AD subjects and maximized concordance to brain amyloidosis. The defined cutoff demonstrated that CSF analysis may be useful as a surrogate to imaging assessment of AD pathology.

Indexed as

Alzheimer's diseaseAmyloid β42Diagnostic test assessmentPETTau

Identifiers

PMID28349119
PMCPMC5357677

What OpenQuestion holds

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LicenceCC BY-NC-ND
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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.