Evidence map›Paper›PMID 40711597›Full record

ArticleJournal of neurology2025

Neurofilament light chain reference values in serum and cerebrospinal fluid: a bi-compartmental analysis in neurological diseases.

Steffen Halbgebauer, Veronika Klose, Badrieh Fazeli, Paula Klassen, Christoforos Alexudis, Gabriele Nagel, Angela Rosenbohm, Dietrich Rothenbacher, Nerea Gomez de San Jose, Simon Witzel and 10 more

Abstract read
In one paragraph

Article in Journal of neurology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing 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

10 citing papers in PubMed.

  1. Trial
  2. Article
  3. Observational
  4. Observational
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  6. Article
  7. Article
  8. Observational
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  10. 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

20 authors.

Steffen HalbgebauerDepartment of Neurology, University Hospital Ulm, Oberer Eselsberg 45, 89081, Ulm, Germany.
Veronika KloseGerman Center for Neurodegenerative Diseases (DZNE E.V.), Ulm, Germany.
Badrieh FazeliDepartment of Neurology, University Hospital Ulm, Oberer Eselsberg 45, 89081, Ulm, Germany.
Paula KlassenDepartment of Neurology, University Hospital Ulm, Oberer Eselsberg 45, 89081, Ulm, Germany.
Christoforos AlexudisDepartment of Neurology, University Hospital Ulm, Oberer Eselsberg 45, 89081, Ulm, Germany.
Gabriele NagelInstitute for Epidemiology and Medical Biometry, Ulm University, Ulm, Germany.
Angela RosenbohmDepartment of Neurology, University Hospital Ulm, Oberer Eselsberg 45, 89081, Ulm, Germany.
Dietrich RothenbacherInstitute for Epidemiology and Medical Biometry, Ulm University, Ulm, Germany.
Nerea Gomez de San JoseDepartment of Neurology, University Hospital Ulm, Oberer Eselsberg 45, 89081, Ulm, Germany.
Simon WitzelDepartment of Neurology, University Hospital Ulm, Oberer Eselsberg 45, 89081, Ulm, Germany.
Zeynep ElmasDepartment of Neurology, University Hospital Ulm, Oberer Eselsberg 45, 89081, Ulm, Germany.
Maximilian WiesenfarthDepartment of Neurology, University Hospital Ulm, Oberer Eselsberg 45, 89081, Ulm, Germany.
Joachim SchusterDepartment of Neurology, University Hospital Ulm, Oberer Eselsberg 45, 89081, Ulm, Germany.
Johannes DorstDepartment of Neurology, University Hospital Ulm, Oberer Eselsberg 45, 89081, Ulm, Germany.
Andre HussDepartment of Neurology, University Hospital Ulm, Oberer Eselsberg 45, 89081, Ulm, Germany.
Franziska BachhuberDepartment of Neurology, University Hospital Ulm, Oberer Eselsberg 45, 89081, Ulm, Germany.
Markus OttoDepartment of Neurology, University Hospital Ulm, Oberer Eselsberg 45, 89081, Ulm, Germany.
G Bernhard LandwehrmeyerDepartment of Neurology, University Hospital Ulm, Oberer Eselsberg 45, 89081, Ulm, Germany.
Albert C LudolphDepartment of Neurology, University Hospital Ulm, Oberer Eselsberg 45, 89081, Ulm, Germany.
Hayrettin TumaniDepartment of Neurology, University Hospital Ulm, Oberer Eselsberg 45, 89081, Ulm, Germany. hayrettin.tumani@uni-ulm.de.ORCID http://orcid.org/0000-0002-1647-6201

Funding

Boehringer Ingelheim Ulm University BioCenter D.5009European Union MIRIADE 860197German Federal Ministry of Education and Research FTLDc 01GI1007AGerman Federal Ministry of Education and Research Genfi-Prox 01ED2008AGerman Federal Ministry of Education and Research moodmarker 01EW2008German Research Council 577 631
6 · The paper itself

Abstract

backgroundConcentrations of neurofilament light chain (NfL), a neuroaxonal damage marker, increase with age. Therefore, age-dependent reference values are important in clinical practice. However, so far these have only been established with a bead-based system and age-dependent z-scores for CSF are missing. In addition, we here propose how the combined analysis of CSF and serum NfL could help in the discrimination between central (CNS) and peripheral nervous system (PNS) axonal degeneration.

methodsFor the calculation of age reference values, serum and CSF NfL concentrations from 1,514 control subjects, measured using the microfluidic Ella system, were applied.

resultsAge-dependent NfL levels were calculated with additive quantile regression and presented with percentiles and z-scores. We observed a non-linear increase of NfL in serum and CSF. The spearman r of the association with age was 0.81 (95% CI 0.78-0.83), p < 0.0001 and 0.82 (95% CI 0.79-0.85), p < 0.0001 for serum and CSF NfL, respectively. Serum and CSF NfL levels were also associated with each other (r = 0.68 (95%CI 0.62-0.73), p < 0.0001). Furthermore, we used this association to establish a bi-compartmental CSF and serum NfL model allowing to differentiate between peripheral or central origin of neurodegeneration.

conclusionsThe age reference curves corroborate findings of an exponential elevation of NfL in serum and CSF with increasing age. As NfL values from different platforms are not interchangeable, this is of additional high relevance. Moreover, the association between CSF and serum NfL values could be applied for clinical use regarding overlapping symptoms of CNS and PNS-based neurological diseases.

Indexed as

Nervous System DiseasesNeurofilament ProteinsAdolescentAdultAgedAged, 80 and overAgingBiomarkersChildChild, PreschoolFemaleHumansMaleMiddle AgedReference ValuesYoung AdultBiomarkersneurofilament protein LNeurofilament ProteinsAge reference valuesBi-compartment modelCSFNeurofilamentNfLSerumZ-score

Identifiers

PMID40711597
PMCPMC12296792

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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.