Evidence map›Paper›PMID 30678707›Full record

ArticleJournal of neuroinflammation2019

Cerebrospinal fluid levels of glial marker YKL-40 strongly associated with axonal injury in HIV infection.

Linn Hermansson, Aylin Yilmaz, Markus Axelsson, Kaj Blennow, Dietmar Fuchs, Lars Hagberg, Jan Lycke, Henrik Zetterberg, Magnus Gisslén

Open access · goldAbstract read
In one paragraph

Article in Journal of neuroinflammation, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
1.3field-weighted citation impact, top 20% 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, 36 citations in OpenAlex.

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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

9 authors at 3 institutions in 3 countries.

Linn HermanssonDepartment of Infectious Diseases, University of Gothenburg, Gothenburg, Sweden.
Aylin YilmazDepartment of Infectious Diseases, University of Gothenburg, Gothenburg, Sweden. aylin.yilmaz@gu.se.ORCID http://orcid.org/0000-0001-7612-5828
Markus AxelssonDepartment of Neurology, University of Gothenburg, Gothenburg, Sweden.
Kaj BlennowDepartment of Psychiatry and Neurochemistry, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.
Dietmar FuchsDivision of Biological Chemistry, Biocenter, Innsbruck Medical University, Innsbruck, Austria.
Lars HagbergDepartment of Infectious Diseases, University of Gothenburg, Gothenburg, Sweden.
Jan LyckeDepartment of Neurology, University of Gothenburg, Gothenburg, Sweden.
Henrik ZetterbergDepartment of Psychiatry and Neurochemistry, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.
Magnus GisslénDepartment of Infectious Diseases, University of Gothenburg, Gothenburg, Sweden.
University of Gothenburg · SESahlgrenska University Hospital · SEInnsbruck Medical University · AT

Funding

Compartmentalized CSF viral escape and the CNS HIV reservoirR01NS094067 · NINDS · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI PRICE, RICHARD W. · 2015 to 2020
$3.9M
National Institutes of Health R01 NS094067NINDS NIH HHS R01 NS094067Swedish State support for Clinical Research ALFGBG-717531, ALFGBG-715986, and ALFGBG-720931
6 · The paper itself

Abstract

backgroundHIV-1 infects the central nervous system (CNS) shortly after transmission. This leads to a chronic intrathecal immune activation. YKL-40, a biomarker that mainly reflects activation of astroglial cells, has not been thoroughly investigated in relation to HIV. The objective of our study was to characterize cerebrospinal fluid (CSF) YKL-40 in chronic HIV infection, with and without antiretroviral treatment (ART).

methodsYKL-40, neopterin, and the axonal marker neurofilament light protein (NFL) were analyzed with ELISA in archived CSF samples from 120 HIV-infected individuals (85 untreated neuroasymptomatic patients, 7 with HIV-associated dementia, and 28 on effective ART) and 39 HIV-negative controls.

resultsCSF YKL-40 was significantly higher in patients with HIV-associated dementia compared to all other groups. It was also higher in untreated neuroasymptomatic individuals with CD4 cell count < 350 compared to controls. Significant correlations were found between CSF YKL-40 and age (r = 0.38, p < 0.001), CD4 (r = - 0.36, p < 0.001), plasma HIV RNA (r = 0.35, p < 0.001), CSF HIV RNA (r = 0.35, p < 0.001), CSF neopterin (r = 0.40, p < 0.001), albumin ratio (r = 0.44, p < 0.001), and CSF NFL (r = 0.71, p < 0.001). Age, CD4 cell count, albumin ratio, and CSF HIV RNA were found as independent predictors of CSF YKL-40 concentrations in multivariable analysis. In addition, CSF YKL-40 was revealed as a strong independent predictor of CSF NFL together with age, CSF neopterin, and CD4 cell count.

conclusionsCSF YKL-40 is a promising biomarker candidate for understanding the pathogenesis of HIV in the CNS. The strong correlation between CSF YKL-40 and NFL suggests a pathogenic association between astroglial activation and axonal injury, and implies its utility in assessing the prognostic value of YKL-40.

Indexed as

AdultBrain InjuriesChitinase-3-Like Protein 1Correlation of DataCross-Sectional StudiesCytokinesFemaleHIV InfectionsHumansMaleMiddle AgedNeopterinNeurofilament ProteinsCHI3L1 protein, humanChitinase-3-Like Protein 1CytokinesNeopterinneurofilament protein LNeurofilament ProteinsCerebrospinal fluidHIVNeurofilament proteinYKL-40

Identifiers

PMID30678707
PMCPMC6345016
OpenAlexW2947342686

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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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.