Evidence map›Paper›PMID 37165453›Full record

SynthesisActa neuropathologica communications2023

SARS-Cov-2 infection and neuropathological findings: a report of 18 cases and review of the literature.

Laetitia Lebrun, Lara Absil, Myriam Remmelink, Ricardo De Mendonça, Nicky D'Haene, Nicolas Gaspard, Stefan Rusu, Marie-Lucie Racu, Amandine Collin, Justine Allard and 7 more

Open access · goldAbstract readSystematic ReviewCase Reports
In one paragraph

Synthesis in Acta neuropathologica communications, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
5.3field-weighted citation impact, top 4% 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

15 citing papers in PubMed, 26 citations in OpenAlex.

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  12. Microglia at the blood brain barrier in health and disease.Frontiers in cellular neuroscience · 2024
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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 3 institutions in 2 countries.

Laetitia Lebrun *Department of Pathology, Erasme University Hospital, Université Libre de Bruxelles (ULB)Hôpital Universitaire de Bruxelles (HUB), CUB Hôpital Erasme, 808 Route de Lennik, B-1070, Brussels, Belgium.ORCID 0000-0002-5663-8180
Lara Absil *Department of Pathology, Erasme University Hospital, Université Libre de Bruxelles (ULB)Hôpital Universitaire de Bruxelles (HUB), CUB Hôpital Erasme, 808 Route de Lennik, B-1070, Brussels, Belgium.ORCID 0000-0002-8320-7052
Myriam RemmelinkDepartment of Pathology, Erasme University Hospital, Université Libre de Bruxelles (ULB)Hôpital Universitaire de Bruxelles (HUB), CUB Hôpital Erasme, 808 Route de Lennik, B-1070, Brussels, Belgium.
Ricardo De MendonçaDepartment of Pathology, Erasme University Hospital, Université Libre de Bruxelles (ULB)Hôpital Universitaire de Bruxelles (HUB), CUB Hôpital Erasme, 808 Route de Lennik, B-1070, Brussels, Belgium.
Nicky D'HaeneDepartment of Pathology, Erasme University Hospital, Université Libre de Bruxelles (ULB)Hôpital Universitaire de Bruxelles (HUB), CUB Hôpital Erasme, 808 Route de Lennik, B-1070, Brussels, Belgium.ORCID 0000-0001-8100-377X
Nicolas GaspardDepartment of Neurology, Université Libre de Bruxelles (ULB), Hôpital Universitaire de Bruxelles (HUB), CUB Hôpital Erasme, Erasme University Hospital, Brussels, Belgium.
Stefan RusuDepartment of Pathology, Erasme University Hospital, Université Libre de Bruxelles (ULB)Hôpital Universitaire de Bruxelles (HUB), CUB Hôpital Erasme, 808 Route de Lennik, B-1070, Brussels, Belgium.
Marie-Lucie RacuDepartment of Pathology, Erasme University Hospital, Université Libre de Bruxelles (ULB)Hôpital Universitaire de Bruxelles (HUB), CUB Hôpital Erasme, 808 Route de Lennik, B-1070, Brussels, Belgium.
Amandine CollinDIAPath, Center for Microscopy and Molecular Imaging (CMMI), ULB, Gosselies, Belgium.
Justine AllardDIAPath, Center for Microscopy and Molecular Imaging (CMMI), ULB, Gosselies, Belgium.
Egor ZindyDIAPath, Center for Microscopy and Molecular Imaging (CMMI), ULB, Gosselies, Belgium.
Andrea Alex SchiavoDepartment of Pathology, Erasme University Hospital, Université Libre de Bruxelles (ULB)Hôpital Universitaire de Bruxelles (HUB), CUB Hôpital Erasme, 808 Route de Lennik, B-1070, Brussels, Belgium.ORCID 0000-0002-5749-6321
Sarah De ClercqDepartment of Pathology, Erasme University Hospital, Université Libre de Bruxelles (ULB)Hôpital Universitaire de Bruxelles (HUB), CUB Hôpital Erasme, 808 Route de Lennik, B-1070, Brussels, Belgium.
Olivier De WitteDepartment of Neurosurgery, Université Libre de Bruxelles (ULB)Hôpital Universitaire de Bruxelles (HUB), CUB Hôpital ErasmeErasme University Hospital, Brussels, Belgium.ORCID 0000-0002-7700-8006
Christine DecaesteckerDIAPath, Center for Microscopy and Molecular Imaging (CMMI), ULB, Gosselies, Belgium.
Maria-Beatriz LopesDepartment of Pathology, University of Virginia Health System, Charlottesville, VA, USA.ORCID 0000-0001-8661-6727
Isabelle SalmonDepartment of Pathology, Erasme University Hospital, Université Libre de Bruxelles (ULB)Hôpital Universitaire de Bruxelles (HUB), CUB Hôpital Erasme, 808 Route de Lennik, B-1070, Brussels, Belgium. isabelle.salmon@hubruxelles.be.ORCID 0000-0002-7732-2863
Université Libre de Bruxelles · BEVIB-UAntwerp Center for Molecular Neurology · BEUniversity of Virginia Health System · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionCOVID-19-infected patients harbour neurological symptoms such as stroke and anosmia, leading to the hypothesis that there is direct invasion of the central nervous system (CNS) by SARS-CoV-2. Several studies have reported the neuropathological examination of brain samples from patients who died from COVID-19. However, there is still sparse evidence of virus replication in the human brain, suggesting that neurologic symptoms could be related to mechanisms other than CNS infection by the virus. Our objective was to provide an extensive review of the literature on the neuropathological findings of postmortem brain samples from patients who died from COVID-19 and to report our own experience with 18 postmortem brain samples. MATERIAL AND

methodsWe used microscopic examination, immunohistochemistry (using two different antibodies) and PCR-based techniques to describe the neuropathological findings and the presence of SARS-CoV-2 virus in postmortem brain samples. For comparison, similar techniques (IHC and PCR) were applied to the lung tissue samples for each patient from our cohort. The systematic literature review was conducted from the beginning of the pandemic in 2019 until June 1st, 2022.

resultsIn our cohort, the most common neuropathological findings were perivascular haemosiderin-laden macrophages and hypoxic-ischaemic changes in neurons, which were found in all cases (n = 18). Only one brain tissue sample harboured SARS-CoV-2 viral spike and nucleocapsid protein expression, while all brain cases harboured SARS-CoV-2 RNA positivity by PCR. A colocalization immunohistochemistry study revealed that SARS-CoV-2 antigens could be located in brain perivascular macrophages. The literature review highlighted that the most frequent neuropathological findings were ischaemic and haemorrhagic lesions, including hypoxic/ischaemic alterations. However, few studies have confirmed the presence of SARS-CoV-2 antigens in brain tissue samples.

conclusionThis study highlighted the lack of specific neuropathological alterations in COVID-19-infected patients. There is still no evidence of neurotropism for SARS-CoV-2 in our cohort or in the literature.

Indexed as

COVID-19Nervous System DiseasesCentral Nervous SystemHumansLungRNA, ViralSARS-CoV-2RNA, ViralCOVID-19ImmunohistochemistryPCRPostmortem procedureSARS-CoV-2

Identifiers

PMID37165453
PMCPMC10170054
OpenAlexW4376132800

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.