Evidence map›Paper›PMID 29641555›Full record

Observational studyPloS one2018

Two novel blood-based biomarker candidates measuring degradation of tau are associated with dementia: A prospective study.

Jesper Skov Neergaard, Katrine Dragsbæk, Claus Christiansen, Morten Asser Karsdal, Susanne Brix, Kim Henriksen

Open access · goldAbstract readObservational Study
In one paragraph

Observational study in PloS one, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
2.0field-weighted citation impact, top 14% 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

7 citing papers in PubMed, 17 citations in OpenAlex.

  1. Early Diagnosis of Alzheimer's Disease with Blood Test; Tempting but Challenging.International journal of molecular and cellular medicine · 2023
    Review
  2. Review
  3. Article
  4. Article
  5. Article
  6. Review
  7. It's all about tau.Progress in neurobiology · 2019
    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

6 authors at 2 institutions in 1 country.

Jesper Skov NeergaardNordic Bioscience A/S, Herlev, Denmark.ORCID 0000-0002-1624-0928
Katrine DragsbækNordic Bioscience A/S, Herlev, Denmark.
Claus ChristiansenNordic Bioscience A/S, Herlev, Denmark.
Morten Asser KarsdalNordic Bioscience A/S, Herlev, Denmark.
Susanne BrixDTU Bioengineering, Technical University of Denmark, Kgs, Lyngby, Denmark.
Kim HenriksenNordic Bioscience A/S, Herlev, Denmark.
Nordic Bioscience (Denmark) · DKTechnical University of Denmark · DK

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundTruncated tau appears to be specifically related to disease pathology and recent studies have shown the presence and elevation of several truncated tau species in Cerebrospinal fluid (CSF) of subjects with Alzheimer's disease (AD); however, the relevance of truncated Tau measurements in blood is still being studied.

objectiveThe aim of the current study was to assess the longitudinal associations between baseline levels of two novel blood biomarker candidates measuring truncated tau, Tau-A and Tau-C, and the risk of incident dementia and AD in elderly women.

methodsUsing solid phase competitive ELISA, two tau fragments were detected in serum of 5,309 women from the Prospective Epidemiological Risk Factor study. The study was an observational, prospective study of Danish postmenopausal women. Subjects were followed with registry-linkage for up to 15 years (median follow-up time 13.7 years). Cox regression was used to assess the utility of the biomarker candidates in relation to dementia and AD.

resultsHigh levels of Tau-A and Tau-C (above the median) in blood were associated with lower risk of dementia and AD (Tau-A: Dementia HR[95% CI] = 0.85[0.70-1.04]; AD 0.71[0.52-0.98] and Tau-C: Dementia 0.84[0.70-1.00]; AD 0.78[0.60-1.03]). Tau-C gave a very modest increase in the AUC in a 5-year prediction horizon as compared to a reference model with age and education, while a combination of the two did not improve their predictive capacity.

conclusionsMeasurement of tau in serum is feasible. The serological tau turnover profile may be related to the diagnosis and development of dementia and AD. The exact processing and profile in serum in relation to cognitive disorders remains to be further assessed to provide simple non-invasive tests to identify subjects with progressive cognitive disorders.

Indexed as

AgedAged, 80 and overAlzheimer DiseaseAmyloid beta-PeptidesBiomarkersCognition DisordersDementiaEnzyme-Linked Immunosorbent AssayFemaleFollow-Up StudiesHumansMiddle AgedPeptide FragmentsPostmenopauseProportional Hazards ModelsProspective StudiesAmyloid beta-PeptidesBiomarkersMAPT protein, humanPeptide Fragmentstau Proteins

Identifiers

PMID29641555
PMCPMC5895005
OpenAlexW2796873354

What OpenQuestion holds

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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.