Evidence map›Paper›PMID 36847705›Full record

ArticleJournal of neuropathology and experimental neurology2023

Neuropathological features of SARS-CoV-2 delta and omicron variants.

Erica Normandin, Navid Valizadeh, Emily A Rudmann, Rockib Uddin, Sabrina T Dobbins, Bronwyn L MacInnis, Robert F Padera, Katherine J Siddle, Jacob E Lemieux, Pardis C Sabeti and 2 more

Open access · bronzeAbstract read
In one paragraph

Article in Journal of neuropathology and experimental neurology, 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
3.1field-weighted citation impact, top 8% 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, 16 citations in OpenAlex.

  1. Human brain matters: Navigating the neuropathology of COVID-19.Brain pathology (Zurich, Switzerland) · 2026
    Review
  2. Article
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  4. Article
  5. Article
  6. Review
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  9. The neurobiology of SARS-CoV-2 infection.Nature reviews. Neuroscience · 2024
    Review
  10. Article
  11. Article
  12. Review
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  14. Article
  15. Article
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

12 authors at 3 institutions in 1 country.

Erica NormandinBroad Institute of MIT and Harvard, Cambridge, Massachusetts, USA.
Navid ValizadehDivision of Neuroimmunology and Neuro-infectious Diseases, Department of Neurology, Massachusetts General Hospital, Boston, Massachusetts, USA.
Emily A RudmannDivision of Neuroimmunology and Neuro-infectious Diseases, Department of Neurology, Massachusetts General Hospital, Boston, Massachusetts, USA.
Rockib UddinDivision of Infectious Diseases, Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts, USA.
Sabrina T DobbinsBroad Institute of MIT and Harvard, Cambridge, Massachusetts, USA.
Bronwyn L MacInnisBroad Institute of MIT and Harvard, Cambridge, Massachusetts, USA.
Robert F PaderaDepartment of Pathology, Brigham and Women's Hospital, Boston, Massachusetts, USA.
Katherine J SiddleBroad Institute of MIT and Harvard, Cambridge, Massachusetts, USA.
Jacob E LemieuxDivision of Infectious Diseases, Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts, USA.
Pardis C SabetiBroad Institute of MIT and Harvard, Cambridge, Massachusetts, USA.
Shibani S MukerjiDivision of Neuroimmunology and Neuro-infectious Diseases, Department of Neurology, Massachusetts General Hospital, Boston, Massachusetts, USA.
Isaac H SolomonDepartment of Pathology, Brigham and Women's Hospital, Boston, Massachusetts, USA.ORCID 0000-0003-3432-0902
Broad Institute · USMassachusetts General Hospital · USBrigham and Women's Hospital · US

Funding

VectorP30CA006516 · NCI · DANA-FARBER CANCER INSTITUTE · PI JENNIFER W MACK · 1985 to 2026
$330.6M
Viral Genomics: evolution, spread, and host interactionsU19AI110818 · NIAID · BROAD INSTITUTE, INC. · PI NEAFSEY, DANIEL E · 2014 to 2024
$66.5M
Immune Activation, Cerebral Metabolic Activity and Depression in Treated HIV-InfectionK23MH115812 · NIMH · MASSACHUSETTS GENERAL HOSPITAL · PI MUKERJI, SHIBANI SHARON · 2018 to 2022
$926k
Developing a robust platform to identify unexpected and novel viruses in human brain tissueR21NS119660 · NINDS · BRIGHAM AND WOMEN'S HOSPITAL · PI PIANTADOSI, ANNE L, SOLOMON, ISAAC H. · 2020 to 2020
$480k
CDC HHS 75D30120C09605FDA HHS HHSF223201810172CHoward Hughes Medical InstituteNCI NIH HHS # NIH 5 P30 CA06516NCI NIH HHS P30 CA006516NIAID NIH HHS U19 AI110818NIH HHS R21NS119660NIMH NIH HHS K23 MH115812NINDS NIH HHS R21 NS119660
6 · The paper itself

Abstract

Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is continually evolving resulting in variants with increased transmissibility, more severe disease, reduced effectiveness of treatments or vaccines, or diagnostic detection failure. The SARS-CoV-2 Delta variant (B.1.617.2 and AY lineages) was the dominant circulating strain in the United States from July to mid-December 2021, followed by the Omicron variant (B.1.1.529 and BA lineages). Coronavirus disease 2019 (COVID-19) has been associated with neurological sequelae including loss of taste/smell, headache, encephalopathy, and stroke, yet little is known about the impact of viral strain on neuropathogenesis. Detailed postmortem brain evaluations were performed for 22 patients from Massachusetts, including 12 who died following infection with Delta variant and 5 with Omicron variant, compared to 5 patients who died earlier in the pandemic. Diffuse hypoxic injury, occasional microinfarcts and hemorrhage, perivascular fibrinogen, and rare lymphocytes were observed across the 3 groups. SARS-CoV-2 protein and RNA were not detected in any brain samples by immunohistochemistry, in situ hybridization, or real-time quantitative PCR. These results, although preliminary, demonstrate that, among a subset of severely ill patients, similar neuropathological features are present in Delta, Omicron, and non-Delta/non-Omicron variant patients, suggesting that SARS-CoV-2 variants are likely to affect the brain by common neuropathogenic mechanisms.

Indexed as

COVID-19StrokeHumansNeuropathologySARS-CoV-2COVID-19DeltaNeuropathologyOmicronSARS-CoV-2

Identifiers

PMID36847705
PMCPMC10025880
OpenAlexW4322493118

What OpenQuestion holds

Textmetadata
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.