Evidence map›Paper›PMID 24174584›Full record

ArticleNeurology2013

Reduced CSF p-Tau181 to Tau ratio is a biomarker for FTLD-TDP.

William T Hu, Kelly Watts, Murray Grossman, Jonathan Glass, James J Lah, Chadwick Hales, Matthew Shelnutt, Vivianna Van Deerlin, John Q Trojanowski, Allan I Levey

Open access · bronzeAbstract readMulticenter Study
In one paragraph

Article in Neurology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 73 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
73citing papers in PubMed, 1 pooled it
5.9field-weighted citation impact, top 3% 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

73 citing papers in PubMed, 1 synthesis or guideline pooled it, 115 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Trial
  4. Article
  5. Article
  6. Article
  7. Article
  8. Review
  9. Article
  10. Review
  11. Article
  12. Review
  13. Article
  14. Detection of TDP-43 seeding activity in the olfactory mucosa from patients with frontotemporal dementia.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2024
    Article
  15. Charting the Next Road Map for CSF Biomarkers in Alzheimer's Disease and Related Dementias.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2023
    Review
  16. Review
  17. Review
  18. Review
  19. Review
  20. Article

13 more citing papers are in PubMed but not listed here.

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

10 authors at 1 institution in 1 country.

William T HuFrom the Department of Neurology (W.T.H., K.W., J.G., J.J.L., C.H., M.S., A.I.L.), Center for Neurodegenerative Diseases Research (W.T.H., K.W., J.G., J.J.L., C.H., A.I.L.), Alzheimer's Disease Research Center (W.T.H., J.G., J.J.L., C.H., A.I.L.), Emory University School of Medicine, Atlanta, GA; and Departments of Neurology (M.G.) and Laboratory Medicine and Pathology (V.V.D., J.Q.T.), University of Pennsylvania, Philadelphia.
Kelly Watts
Murray Grossman
Jonathan Glass
James J Lah
Chadwick Hales
Matthew Shelnutt
Vivianna Van Deerlin
John Q Trojanowski
Allan I Levey
J.P. Morgan · GB

Funding

Transgenic Mouse Models of Tau PathologiesP01AG017586 · NIA · UNIVERSITY OF PENNSYLVANIA · PI LEE, VIRGINIA M · 2000 to 2021
$37.3M
UPenn ADCC Biomarker CoreP30AG010124 · NIA · UNIVERSITY OF PENNSYLVANIA · PI DETRE, JOHN A · 1991 to 2020
$35.1M
The Emory Alzheimer's Disease CenterP50AG025688 · NIA · EMORY UNIVERSITY · PI WALKER, LARY C · 2005 to 2019
$25.7M
Neural Basis of Generalized QuantifiersR01NS044266 · NINDS · UNIVERSITY OF PENNSYLVANIA · PI GROSSMAN, MURRAY · 2004 to 2014
$6.8M
Early CSF detection of FTLDK23AG042856 · NIA · EMORY UNIVERSITY · PI HU, WILLIAM TZU-LUNG · 2013 to 2017
$782k
NIA NIH HHS AG-10124NIA NIH HHS AG-17586NIA NIH HHS AG-25688NIA NIH HHS K23 AG042856NIA NIH HHS P01 AG017586NIA NIH HHS P30 AG010124NIA NIH HHS P50 AG025688NINDS NIH HHS NS-44266NINDS NIH HHS R01 NS044266
6 · The paper itself

Abstract

objectivesTo validate the ability of candidate CSF biomarkers to distinguish between the 2 main forms of frontotemporal lobar degeneration (FTLD), FTLD with TAR DNA-binding protein 43 (TDP-43) inclusions (FTLD-TDP) and FTLD with Tau inclusions (FTLD-Tau).

methodsAntemortem CSF samples were collected from 30 patients with FTLD in a single-center validation cohort, and CSF levels of 5 putative FTLD-TDP biomarkers as well as levels of total Tau (t-Tau) and Tau phosphorylated at threonine 181 (p-Tau181) were measured using independent assays. Biomarkers most associated with FTLD-TDP were then tested in a separate 2-center validation cohort composed of subjects with FTLD-TDP, FTLD-Tau, Alzheimer disease (AD), and cognitively normal subjects. The sensitivity and specificity of FTLD-TDP biomarkers were determined.

resultsIn the first validation cohort, FTLD-TDP cases had decreased levels of p-Tau181 and interleukin-23, and increased Fas. Reduced ratio of p-Tau181 to t-Tau (p/t-Tau) was the strongest predictor of FTLD-TDP pathology. Analysis in the second validation cohort showed CSF p/t-Tau ratio <0.37 to distinguish FTLD-TDP from FTLD-Tau, AD, and healthy seniors with 82% sensitivity and 82% specificity.

conclusionA reduced CSF p/t-Tau ratio represents a reproducible, validated biomarker for FTLD-TDP with performance approaching well-established CSF AD biomarkers. Introducing this biomarker into research and the clinical arena can significantly increase the power of clinical trials targeting abnormal accumulations of TDP-43 or Tau, and select the appropriate patients for target-specific therapies. CLASSIFICATION OF EVIDENCE: This study provides Class II evidence that the CSF p/t-Tau ratio distinguishes FTLD-TDP from FTLD-Tau.

Indexed as

Amyloid beta-PeptidesBiomarkersC9orf72 ProteinChi-Square DistributionCohort StudiesDNA-Binding ProteinsFemaleFrontotemporal Lobar DegenerationHumansIntercellular Signaling Peptides and ProteinsInterleukin-23MalePeptide FragmentsPhosphorylationProgranulinsProteinsAmyloid beta-Peptidesamyloid beta-protein (1-42)BiomarkersC9orf72 ProteinC9orf72 protein, humanDNA-Binding ProteinsGRN protein, humanIntercellular Signaling Peptides and ProteinsInterleukin-23Peptide FragmentsProgranulinsProteinstau ProteinsThreonine

Identifiers

PMID24174584
PMCPMC3843382
OpenAlexW2155980849

What OpenQuestion 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 OpenQuestion graph.