Evidence map›Paper›PMID 32597801›Full record

ArticleJournal of Alzheimer's disease : JAD2020

Plasma Neurofilament Light: A Marker of Neurodegeneration in Mild Behavioral Impairment.

James P Naude, Sascha Gill, Sophie Hu, Alexander McGirr, Nils D Forkert, Oury Monchi, Peter K Stys, Eric E Smith, Zahinoor Ismail, Alzheimer’s Disease Neuroimaging Initiative

Open access · greenAbstract read
In one paragraph

Article in Journal of Alzheimer's disease : JAD, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 65 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
65citing papers in PubMed, 1 pooled it
10.0field-weighted citation impact, top 1% 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

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

  1. Pooled it
  2. Review
  3. Article
  4. Neuropsychiatric symptoms in Alzheimer's disease: Past, present, and future.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2026
    Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Genetic and circulating biomarkers of cognitive dysfunction and dementia in CKD.Nephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association · 2025
    Review
  11. Article
  12. Review
  13. Observational
  14. Salience network segregation mediates the effect of tau pathology on mild behavioral impairment.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2024
    Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Review
  20. Article

5 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.

James P NaudeHotchkiss Brain Institute, University of Calgary, Calgary, Alberta, Canada.
Sascha GillHotchkiss Brain Institute, University of Calgary, Calgary, Alberta, Canada.
Sophie HuHotchkiss Brain Institute, University of Calgary, Calgary, Alberta, Canada.
Alexander McGirrHotchkiss Brain Institute, University of Calgary, Calgary, Alberta, Canada.
Nils D ForkertHotchkiss Brain Institute, University of Calgary, Calgary, Alberta, Canada.
Oury MonchiHotchkiss Brain Institute, University of Calgary, Calgary, Alberta, Canada.
Peter K StysHotchkiss Brain Institute, University of Calgary, Calgary, Alberta, Canada.
Eric E SmithHotchkiss Brain Institute, University of Calgary, Calgary, Alberta, Canada.
Zahinoor IsmailHotchkiss Brain Institute, University of Calgary, Calgary, Alberta, Canada.
Alzheimer’s Disease Neuroimaging Initiative
University of Calgary · CA

Funding

Alzheimer's Disease Neuroimaging Initiative - SupplementU01AG024904 · NIA · NORTHERN CALIFORNIA INSTITUTE RES &EDUC · PI WEINER, MICHAEL W · 2004 to 2015
$121.0M
CIHRNIA NIH HHS U01 AG024904
6 · The paper itself

Abstract

backgroundAssessing neuropsychiatric symptoms (NPS) in older adults is important for determining dementia risk. Mild behavioral impairment (MBI) is an at-risk state for cognitive decline and dementia, characterized by emergent NPS in later life. MBI has significantly higher dementia incidence than late life psychiatric conditions. However, its utility as a proxy for neurodegeneration has not been demonstrated. Plasma neurofilament light (NfL) is a validated biomarker of axonal damage, and has been shown to associate with hallmarks of neurodegeneration.

objectiveThe purpose of this investigation was to identify associations between NfL rate of change and the presence of MBI symptomatology.

methodsWe evaluated the association of MBI with changes in NfL in a cohort (n = 584; MBI + n = 190, MBI- n = 394) of non-demented participants from the Alzheimer's Disease Neuroimaging Initiative. MBI was determined by transforming Neuropsychiatric Inventory Questionnaire items using a published algorithm. Change in NfL was calculated over 2 years.

resultsTime*MBI status was the only significant interaction to predict change in NfL concentrations (F(1,574) = 4.59, p = 0.032), even after controlling for age, mild cognitive impairment, and demographics. Analyses reclassifying 64 participants with new onset MBI over 2 years similarly demonstrated greater increases in NfL (F(1,574) = 5.82, p = 0.016).

conclusionThese findings suggest MBI is a clinical proxy of early phase neurodegeneration with putative utility in identifying those at dementia risk. MBI can be used as a case ascertainment approach to capture those at high risk for cognitive decline and dementia, and is an important construct for clinicians dealing with cognitive and neuropsychiatric symptomatology in older adults.

Indexed as

AgedAged, 80 and overAlzheimer DiseaseBiomarkersCognitive DysfunctionCohort StudiesDisease ProgressionFemaleHumansIntermediate FilamentsMaleMiddle AgedNeurofilament ProteinsNeuropsychological TestsBiomarkersNeurofilament ProteinsAlzheimer’s diseasemild behavioral impairmentmild cognitive impairmentneurodegenerationneurofilament lightneuropsychiatric symptoms

Identifiers

PMID32597801
PMCPMC7504997
OpenAlexW3037286365

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.