Evidence map›Paper›PMID 31919375›Full record

ArticleScientific reports2020

The potential of neurofilaments analysis using dry-blood and plasma spots.

Vittoria Lombardi, Daniele Carassiti, Gavin Giovannoni, Ching-Hua Lu, Rocco Adiutori, Andrea Malaspina

Erratum issuedOpen access · goldAbstract read
In one paragraph

Article in Scientific reports, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
1.1field-weighted citation impact, top 23% 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, 27 citations in OpenAlex.

  1. Article
  2. Review
  3. Clinical use and reporting of neurofilament quantification in neurological disorders: A global overview.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2025
    Article
  4. Review
  5. Dried Spot Paradigm: Problems and Prospects in Proteomics.International journal of molecular sciences · 2025
    Review
  6. Article
  7. Article
  8. Review
  9. Article
  10. Article
  11. Review
  12. Review
  13. Review
  14. Review
  15. Neurofilaments contribution in clinic: state of the art.Frontiers in aging neuroscience · 2022
    Review
  16. Review
  17. Review
  18. Article
  19. Article
  20. Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors at 2 institutions in 2 countries.

Vittoria LombardiBlizard Institute, Queen Mary, University of London, London, UK.
Daniele CarassitiBlizard Institute, Queen Mary, University of London, London, UK.ORCID http://orcid.org/0000-0002-1664-4324
Gavin GiovannoniBlizard Institute, Queen Mary, University of London, London, UK.
Ching-Hua LuSchool of Medicine, China Medical University, Taichung, Taiwan.ORCID http://orcid.org/0000-0002-5191-5089
Rocco AdiutoriBlizard Institute, Queen Mary, University of London, London, UK.
Andrea MalaspinaBlizard Institute, Queen Mary, University of London, London, UK. a.malaspina@qmul.ac.uk.
Queen Mary University of London · GBChina Medical University · TW

Funding

Uncovering new genes and disease modifiers for ALS and related disordersU54NS092091 · NINDS · UNIVERSITY OF MIAMI SCHOOL OF MEDICINE · PI Marka Van Blitterswijk · 2014 to 2026
$19.8M
Amyotrophic Lateral Sclerosis Association (ALS Association) 17-CReA-382Motor Neurone Disease Association MALASPINA/APR13/817-791Motor Neurone Disease Association TURNER/OCT15/972-797NINDS NIH HHS U54 NS092091
6 · The paper itself

Abstract

The lack of biomarkers for an early diagnosis of neurodegenerative disorders (NDs) has hampered the development of therapeutics whose effect would be enhanced by a timely intervention. Neurofilaments light chain (Nf-L), an integral part of the axonal structure, has emerged as a robust fluid biomarker for fatal neurodegenerative disorders like amyotrophic lateral sclerosis (ALS). To facilitate large-scale studies into early-stage neurodegeneration, reduce costs of samples collection/processing and cold-chain storage, we describe the measurement of Nf-L in blood fractions obtained from dry blood spots (DBS) and dry plasma spots (DPS), two filter paper-based remote blood collection tools. To test the feasibility of using this approach, Nf-L analysis in DBS/DPS is compared to that in plasma obtained from the same blood sample, looking at Nf-L discriminatory power in the clinical stratification of ALS compared to healthy controls. With the best pre-analytical treatment for total protein recovery and using highly sensitive immunoassays, we report the detection of different Nf-L levels in DBS elute compared to reference plasma and DPS from the same blood samples. However, Nf-L measurement in DBS elutes provides a very good discrimination of ALS from healthy controls which is comparable to that obtained using plasma Nf-L assays. With the available immunodetection methods, we show that Nf-L measurement based on DPS microsampling is similar to that in plasma. The filter-paper biophysical characteristics and the interference of high haemoglobin concentration released by erythrocyte lysis is likely to perturb Nf-L detection in DBS elute. Further studies into DBS-based Nf-L detection and its analytical optimization are needed to make this method suitable for routine Nf-L blood analyses in neurodegeneration.

Indexed as

AgedAmyotrophic Lateral SclerosisBiomarkersBlood Specimen CollectionCase-Control StudiesDried Blood Spot TestingFemaleHumansMaleMiddle AgedNeurofilament ProteinsSpecimen HandlingBiomarkersneurofilament protein LNeurofilament Proteins

Identifiers

PMID31919375
PMCPMC6952412
OpenAlexW3000555634

What OpenQuestion holds

Textmetadata
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.