Evidence map›Paper›PMID 34135107›Full record

ArticleNeurology(R) neuroimmunology & neuroinflammation2021

Encephalopathies Associated With Severe COVID-19 Present Neurovascular Unit Alterations Without Evidence for Strong Neuroinflammation.

Raphael Bernard-Valnet, Sylvain Perriot, Mathieu Canales, Beatrice Pizzarotti, Leonardo Caranzano, Mayté Castro-Jiménez, Jean-Benoit Epiney, Sergiu Vijiala, Paolo Salvioni-Chiabotti, Angelica Anichini and 7 more

Open access · goldAbstract read
In one paragraph

Article in Neurology(R) neuroimmunology & neuroinflammation, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed, 1 pooled it
4.2field-weighted citation impact, top 5% 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

24 citing papers in PubMed, 1 synthesis or guideline pooled it, 42 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Intracranial complications of sinogenic and otogenic infections in children: an ESPN survey on their occurrence in the pre-COVID and post-COVID era.Child's nervous system : ChNS : official journal of the International Society for Pediatric Neurosurgery · 2024
    Article
  5. Article
  6. Article
  7. Review
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  9. Article
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  12. Article
  13. The value of EEG attenuation in the prediction of outcome in COVID-19 patients.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2022
    Article
  14. Review
  15. Therapeutic Approaches to the Neurologic Manifestations of COVID-19.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2022
    Article
  16. Review
  17. Article
  18. Review
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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

17 authors at 1 institution in 2 countries.

Raphael Bernard-ValnetFrom the Service of Neurology and Laboratory of Neuroimmunology (R.B.-V., S.P., M.C., B.P., L.C., M.C.-J., J.-B.E., S.V., P.S.-C., A.A., A.S., R.A.D.P.), Department of Clinical Neurosciences, Lausanne University Hospital (Centre Hospitalier Universitaire Vaudois) and University of Lausanne; Institute of Microbiology (K.J., G.G.), University of Lausanne and University Hospital of Lausanne; Service of Internal Medicine (J.V.), Department of Medicine, Lausanne University Hospital (Centre Hospitalier Universitaire Vaudois) and University of Lausanne; and Service of Immunology and Allergy (M.P., G.P.), Department of Medicine, Lausanne University Hospital and University of Lausanne, Switzerland. raphael.bernard-valnet@chuv.ch.ORCID 0000-0001-7447-344X
Sylvain PerriotFrom the Service of Neurology and Laboratory of Neuroimmunology (R.B.-V., S.P., M.C., B.P., L.C., M.C.-J., J.-B.E., S.V., P.S.-C., A.A., A.S., R.A.D.P.), Department of Clinical Neurosciences, Lausanne University Hospital (Centre Hospitalier Universitaire Vaudois) and University of Lausanne; Institute of Microbiology (K.J., G.G.), University of Lausanne and University Hospital of Lausanne; Service of Internal Medicine (J.V.), Department of Medicine, Lausanne University Hospital (Centre Hospitalier Universitaire Vaudois) and University of Lausanne; and Service of Immunology and Allergy (M.P., G.P.), Department of Medicine, Lausanne University Hospital and University of Lausanne, Switzerland.
Mathieu CanalesFrom the Service of Neurology and Laboratory of Neuroimmunology (R.B.-V., S.P., M.C., B.P., L.C., M.C.-J., J.-B.E., S.V., P.S.-C., A.A., A.S., R.A.D.P.), Department of Clinical Neurosciences, Lausanne University Hospital (Centre Hospitalier Universitaire Vaudois) and University of Lausanne; Institute of Microbiology (K.J., G.G.), University of Lausanne and University Hospital of Lausanne; Service of Internal Medicine (J.V.), Department of Medicine, Lausanne University Hospital (Centre Hospitalier Universitaire Vaudois) and University of Lausanne; and Service of Immunology and Allergy (M.P., G.P.), Department of Medicine, Lausanne University Hospital and University of Lausanne, Switzerland.
Beatrice PizzarottiFrom the Service of Neurology and Laboratory of Neuroimmunology (R.B.-V., S.P., M.C., B.P., L.C., M.C.-J., J.-B.E., S.V., P.S.-C., A.A., A.S., R.A.D.P.), Department of Clinical Neurosciences, Lausanne University Hospital (Centre Hospitalier Universitaire Vaudois) and University of Lausanne; Institute of Microbiology (K.J., G.G.), University of Lausanne and University Hospital of Lausanne; Service of Internal Medicine (J.V.), Department of Medicine, Lausanne University Hospital (Centre Hospitalier Universitaire Vaudois) and University of Lausanne; and Service of Immunology and Allergy (M.P., G.P.), Department of Medicine, Lausanne University Hospital and University of Lausanne, Switzerland.
Leonardo CaranzanoFrom the Service of Neurology and Laboratory of Neuroimmunology (R.B.-V., S.P., M.C., B.P., L.C., M.C.-J., J.-B.E., S.V., P.S.-C., A.A., A.S., R.A.D.P.), Department of Clinical Neurosciences, Lausanne University Hospital (Centre Hospitalier Universitaire Vaudois) and University of Lausanne; Institute of Microbiology (K.J., G.G.), University of Lausanne and University Hospital of Lausanne; Service of Internal Medicine (J.V.), Department of Medicine, Lausanne University Hospital (Centre Hospitalier Universitaire Vaudois) and University of Lausanne; and Service of Immunology and Allergy (M.P., G.P.), Department of Medicine, Lausanne University Hospital and University of Lausanne, Switzerland.
Mayté Castro-JiménezFrom the Service of Neurology and Laboratory of Neuroimmunology (R.B.-V., S.P., M.C., B.P., L.C., M.C.-J., J.-B.E., S.V., P.S.-C., A.A., A.S., R.A.D.P.), Department of Clinical Neurosciences, Lausanne University Hospital (Centre Hospitalier Universitaire Vaudois) and University of Lausanne; Institute of Microbiology (K.J., G.G.), University of Lausanne and University Hospital of Lausanne; Service of Internal Medicine (J.V.), Department of Medicine, Lausanne University Hospital (Centre Hospitalier Universitaire Vaudois) and University of Lausanne; and Service of Immunology and Allergy (M.P., G.P.), Department of Medicine, Lausanne University Hospital and University of Lausanne, Switzerland.ORCID 0000-0003-4165-4804
Jean-Benoit EpineyFrom the Service of Neurology and Laboratory of Neuroimmunology (R.B.-V., S.P., M.C., B.P., L.C., M.C.-J., J.-B.E., S.V., P.S.-C., A.A., A.S., R.A.D.P.), Department of Clinical Neurosciences, Lausanne University Hospital (Centre Hospitalier Universitaire Vaudois) and University of Lausanne; Institute of Microbiology (K.J., G.G.), University of Lausanne and University Hospital of Lausanne; Service of Internal Medicine (J.V.), Department of Medicine, Lausanne University Hospital (Centre Hospitalier Universitaire Vaudois) and University of Lausanne; and Service of Immunology and Allergy (M.P., G.P.), Department of Medicine, Lausanne University Hospital and University of Lausanne, Switzerland.
Sergiu VijialaFrom the Service of Neurology and Laboratory of Neuroimmunology (R.B.-V., S.P., M.C., B.P., L.C., M.C.-J., J.-B.E., S.V., P.S.-C., A.A., A.S., R.A.D.P.), Department of Clinical Neurosciences, Lausanne University Hospital (Centre Hospitalier Universitaire Vaudois) and University of Lausanne; Institute of Microbiology (K.J., G.G.), University of Lausanne and University Hospital of Lausanne; Service of Internal Medicine (J.V.), Department of Medicine, Lausanne University Hospital (Centre Hospitalier Universitaire Vaudois) and University of Lausanne; and Service of Immunology and Allergy (M.P., G.P.), Department of Medicine, Lausanne University Hospital and University of Lausanne, Switzerland.ORCID 0000-0002-1684-6719
Paolo Salvioni-ChiabottiFrom the Service of Neurology and Laboratory of Neuroimmunology (R.B.-V., S.P., M.C., B.P., L.C., M.C.-J., J.-B.E., S.V., P.S.-C., A.A., A.S., R.A.D.P.), Department of Clinical Neurosciences, Lausanne University Hospital (Centre Hospitalier Universitaire Vaudois) and University of Lausanne; Institute of Microbiology (K.J., G.G.), University of Lausanne and University Hospital of Lausanne; Service of Internal Medicine (J.V.), Department of Medicine, Lausanne University Hospital (Centre Hospitalier Universitaire Vaudois) and University of Lausanne; and Service of Immunology and Allergy (M.P., G.P.), Department of Medicine, Lausanne University Hospital and University of Lausanne, Switzerland.
Angelica AnichiniFrom the Service of Neurology and Laboratory of Neuroimmunology (R.B.-V., S.P., M.C., B.P., L.C., M.C.-J., J.-B.E., S.V., P.S.-C., A.A., A.S., R.A.D.P.), Department of Clinical Neurosciences, Lausanne University Hospital (Centre Hospitalier Universitaire Vaudois) and University of Lausanne; Institute of Microbiology (K.J., G.G.), University of Lausanne and University Hospital of Lausanne; Service of Internal Medicine (J.V.), Department of Medicine, Lausanne University Hospital (Centre Hospitalier Universitaire Vaudois) and University of Lausanne; and Service of Immunology and Allergy (M.P., G.P.), Department of Medicine, Lausanne University Hospital and University of Lausanne, Switzerland.
Alexander SalernoFrom the Service of Neurology and Laboratory of Neuroimmunology (R.B.-V., S.P., M.C., B.P., L.C., M.C.-J., J.-B.E., S.V., P.S.-C., A.A., A.S., R.A.D.P.), Department of Clinical Neurosciences, Lausanne University Hospital (Centre Hospitalier Universitaire Vaudois) and University of Lausanne; Institute of Microbiology (K.J., G.G.), University of Lausanne and University Hospital of Lausanne; Service of Internal Medicine (J.V.), Department of Medicine, Lausanne University Hospital (Centre Hospitalier Universitaire Vaudois) and University of Lausanne; and Service of Immunology and Allergy (M.P., G.P.), Department of Medicine, Lausanne University Hospital and University of Lausanne, Switzerland.ORCID 0000-0001-8494-5527
Katia JatonFrom the Service of Neurology and Laboratory of Neuroimmunology (R.B.-V., S.P., M.C., B.P., L.C., M.C.-J., J.-B.E., S.V., P.S.-C., A.A., A.S., R.A.D.P.), Department of Clinical Neurosciences, Lausanne University Hospital (Centre Hospitalier Universitaire Vaudois) and University of Lausanne; Institute of Microbiology (K.J., G.G.), University of Lausanne and University Hospital of Lausanne; Service of Internal Medicine (J.V.), Department of Medicine, Lausanne University Hospital (Centre Hospitalier Universitaire Vaudois) and University of Lausanne; and Service of Immunology and Allergy (M.P., G.P.), Department of Medicine, Lausanne University Hospital and University of Lausanne, Switzerland.ORCID 0000-0001-8944-7295
Julien VaucherFrom the Service of Neurology and Laboratory of Neuroimmunology (R.B.-V., S.P., M.C., B.P., L.C., M.C.-J., J.-B.E., S.V., P.S.-C., A.A., A.S., R.A.D.P.), Department of Clinical Neurosciences, Lausanne University Hospital (Centre Hospitalier Universitaire Vaudois) and University of Lausanne; Institute of Microbiology (K.J., G.G.), University of Lausanne and University Hospital of Lausanne; Service of Internal Medicine (J.V.), Department of Medicine, Lausanne University Hospital (Centre Hospitalier Universitaire Vaudois) and University of Lausanne; and Service of Immunology and Allergy (M.P., G.P.), Department of Medicine, Lausanne University Hospital and University of Lausanne, Switzerland.
Matthieu PerreauFrom the Service of Neurology and Laboratory of Neuroimmunology (R.B.-V., S.P., M.C., B.P., L.C., M.C.-J., J.-B.E., S.V., P.S.-C., A.A., A.S., R.A.D.P.), Department of Clinical Neurosciences, Lausanne University Hospital (Centre Hospitalier Universitaire Vaudois) and University of Lausanne; Institute of Microbiology (K.J., G.G.), University of Lausanne and University Hospital of Lausanne; Service of Internal Medicine (J.V.), Department of Medicine, Lausanne University Hospital (Centre Hospitalier Universitaire Vaudois) and University of Lausanne; and Service of Immunology and Allergy (M.P., G.P.), Department of Medicine, Lausanne University Hospital and University of Lausanne, Switzerland.
Gilbert GreubFrom the Service of Neurology and Laboratory of Neuroimmunology (R.B.-V., S.P., M.C., B.P., L.C., M.C.-J., J.-B.E., S.V., P.S.-C., A.A., A.S., R.A.D.P.), Department of Clinical Neurosciences, Lausanne University Hospital (Centre Hospitalier Universitaire Vaudois) and University of Lausanne; Institute of Microbiology (K.J., G.G.), University of Lausanne and University Hospital of Lausanne; Service of Internal Medicine (J.V.), Department of Medicine, Lausanne University Hospital (Centre Hospitalier Universitaire Vaudois) and University of Lausanne; and Service of Immunology and Allergy (M.P., G.P.), Department of Medicine, Lausanne University Hospital and University of Lausanne, Switzerland.ORCID 0000-0001-9529-3317
Giuseppe PantaleoFrom the Service of Neurology and Laboratory of Neuroimmunology (R.B.-V., S.P., M.C., B.P., L.C., M.C.-J., J.-B.E., S.V., P.S.-C., A.A., A.S., R.A.D.P.), Department of Clinical Neurosciences, Lausanne University Hospital (Centre Hospitalier Universitaire Vaudois) and University of Lausanne; Institute of Microbiology (K.J., G.G.), University of Lausanne and University Hospital of Lausanne; Service of Internal Medicine (J.V.), Department of Medicine, Lausanne University Hospital (Centre Hospitalier Universitaire Vaudois) and University of Lausanne; and Service of Immunology and Allergy (M.P., G.P.), Department of Medicine, Lausanne University Hospital and University of Lausanne, Switzerland.
Renaud A Du PasquierFrom the Service of Neurology and Laboratory of Neuroimmunology (R.B.-V., S.P., M.C., B.P., L.C., M.C.-J., J.-B.E., S.V., P.S.-C., A.A., A.S., R.A.D.P.), Department of Clinical Neurosciences, Lausanne University Hospital (Centre Hospitalier Universitaire Vaudois) and University of Lausanne; Institute of Microbiology (K.J., G.G.), University of Lausanne and University Hospital of Lausanne; Service of Internal Medicine (J.V.), Department of Medicine, Lausanne University Hospital (Centre Hospitalier Universitaire Vaudois) and University of Lausanne; and Service of Immunology and Allergy (M.P., G.P.), Department of Medicine, Lausanne University Hospital and University of Lausanne, Switzerland.ORCID 0000-0002-2786-3434
University Hospital of Lausanne · CH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveCoronavirus disease (COVID-19) has been associated with a large variety of neurologic disorders. However, the mechanisms underlying these neurologic complications remain elusive. In this study, we aimed at determining whether neurologic symptoms were caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) direct infection or by either systemic or local proinflammatory mediators.

methodsIn this cross-sectional study, we checked for SARS-CoV-2 RNA by quantitative reverse transcription PCR, SARS-CoV-2-specific antibodies, and 49 cytokines/chemokines/growth factors (by Luminex) in the CSF +/- sera of a cohort of 22 COVID-19 patients with neurologic presentation and 55 neurologic control patients (inflammatory neurologic disorder [IND], noninflammatory neurologic disorder, and MS).

resultsWe detected anti-SARS-CoV-2 immunoglobulin G in patients with severe COVID-19 with signs of intrathecal synthesis for some of them. Of the 4 categories of tested patients, the CSF of IND exhibited the highest level of cytokines, chemokines, and growth factors. By contrast, patients with COVID-19 did not present overall upregulation of inflammatory mediators in the CSF. However, patients with severe COVID-19 (intensive care unit patients) exhibited higher concentrations of CCL2, CXCL8, and vascular endothelium growth factor A (VEGF-A) in the CSF than patients with a milder form of COVID-19. In addition, we could show that intrathecal CXCL8 synthesis was linked to an elevated albumin ratio and correlated with the increase of peripheral inflammation (serum hepatocyte growth factor [HGF] and CXCL10).

conclusionsOur results do not indicate active replication of SARS-CoV-2 in the CSF or signs of massive inflammation in the CSF compartment but highlight a specific impairment of the neurovascular unit linked to intrathecal production of CXCL8.

Indexed as

Neurovascular CouplingAdultAgedAged, 80 and overAntibodies, ViralBrain DiseasesCOVID-19Critical CareCross-Sectional StudiesCytokinesElectroencephalographyFemaleHumansImmunoglobulin GInflammationInterleukin-8Antibodies, ViralCXCL8 protein, humanCytokinesImmunoglobulin GInterleukin-8

Identifiers

PMID34135107
PMCPMC8210172
OpenAlexW3166879205

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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.