Evidence map›Paper›PMID 32695873›Full record

ArticleAlzheimer's & dementia (Amsterdam, Netherlands)2020

The effect of lumbar puncture on the neurodegeneration biomarker neurofilament light in macaque monkeys.

Susan E Boehnke, Emma L Robertson, Brittney Armitage-Brown, Robert G Wither, Natalia M Lyra E Silva, Andrew Winterborn, Ron Levy, Douglas J Cook, Fernanda G De Felice, Douglas P Munoz

Abstract read
In one paragraph

Article in Alzheimer's & dementia (Amsterdam, Netherlands), 2020. 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.

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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.

Susan E BoehnkeCentre for Neuroscience Studies Queen's University Kingston Ontario Canada.
Emma L RobertsonCentre for Neuroscience Studies Queen's University Kingston Ontario Canada.
Brittney Armitage-BrownCentre for Neuroscience Studies Queen's University Kingston Ontario Canada.
Robert G WitherCentre for Neuroscience Studies Queen's University Kingston Ontario Canada.
Natalia M Lyra E SilvaCentre for Neuroscience Studies Queen's University Kingston Ontario Canada.
Andrew WinterbornAnimal Care Services Queen's University Kingston Ontario Canada.
Ron LevyCentre for Neuroscience Studies Queen's University Kingston Ontario Canada.
Douglas J CookCentre for Neuroscience Studies Queen's University Kingston Ontario Canada.
Fernanda G De FeliceCentre for Neuroscience Studies Queen's University Kingston Ontario Canada.
Douglas P MunozCentre for Neuroscience Studies Queen's University Kingston Ontario Canada.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionNeurofilament light (NFL) in cerebrospinal fluid (CSF) is elevated in neurodegenerative disease patients, and may track disease progression and treatment. Macaque monkeys are emerging as important translational models of neurodegeneration, and NFL may be a useful biomarker.

methodsTo determine the influence of a previous lumbar puncture (LP) on NFL, we collected CSF at multiple time points in macaque monkeys via LP or cisterna magna puncture. NFL, amyloid beta (Aβ40, Aβ42), and tau (tTau, pTau) in CSF were measured by standard enzyme-linked immunosorbent assay and multiplex.

resultsNFL was significantly elevated at 14 to 23 days after an LP (median increase: 162%). Aβ and tau biomarkers remained stable. NFL peaked and decayed over 1 to 2 months after LP. NFL was not elevated after cisterna magna puncture. DISCUSSION: Results suggest damage of the cauda equina during LP may increase NFL. Caution should be taken in interpreting NFL concentration in studies in which repeat LPs are performed.

Indexed as

amyloid betabiomarkerscerebrospinal fluidcisterna magna puncturelumbar punctureneurofilament lightnon‐human primate modelstau

Identifiers

PMID32695873
PMCPMC7366296

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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.