Evidence map›Paper›PMID 33496918›Full record

SynthesisTranslational stroke research2021

Immune Cell Infiltration into the Brain After Ischemic Stroke in Humans Compared to Mice and Rats: a Systematic Review and Meta-Analysis.

Carolin Beuker, Jan-Kolja Strecker, Rajesh Rawal, Antje Schmidt-Pogoda, Tobias Ruck, Heinz Wiendl, Luisa Klotz, Wolf-Rüdiger Schäbitz, Clemens J Sommer, Heike Minnerup and 2 more

Open access · hybridAbstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in Translational stroke research, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 59 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
59citing papers in PubMed, 1 pooled it
4.8field-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

59 citing papers in PubMed, 1 synthesis or guideline pooled it, 73 citations in OpenAlex.

  1. Pooled it
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  5. Review
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  16. The Immunologic Underpinnings of Post-Stroke Depression.Biological psychiatry global open science · 2025
    Review
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  18. Article
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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

12 authors at 4 institutions in 1 country.

Carolin Beuker *Department of Neurology with Institute of Translational Neurology, University of Münster, Albert-Schweitzer-Campus 1, Gebäude A1, 48149, Münster, Germany.
Jan-Kolja Strecker *Department of Neurology with Institute of Translational Neurology, University of Münster, Albert-Schweitzer-Campus 1, Gebäude A1, 48149, Münster, Germany.
Rajesh RawalInstitute of Epidemiology and Social Medicine, University of Münster, Albert-Schweitzer-Campus 1, Münster, Germany.
Antje Schmidt-PogodaDepartment of Neurology with Institute of Translational Neurology, University of Münster, Albert-Schweitzer-Campus 1, Gebäude A1, 48149, Münster, Germany.
Tobias RuckDepartment of Neurology with Institute of Translational Neurology, University of Münster, Albert-Schweitzer-Campus 1, Gebäude A1, 48149, Münster, Germany.
Heinz WiendlDepartment of Neurology with Institute of Translational Neurology, University of Münster, Albert-Schweitzer-Campus 1, Gebäude A1, 48149, Münster, Germany.
Luisa KlotzDepartment of Neurology with Institute of Translational Neurology, University of Münster, Albert-Schweitzer-Campus 1, Gebäude A1, 48149, Münster, Germany.
Wolf-Rüdiger SchäbitzDepartment of Neurology, Evangelisches Klinikum Bethel, Bielefeld, Germany.
Clemens J SommerInstitute of Neuropathology, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany.
Heike MinnerupInstitute of Epidemiology and Social Medicine, University of Münster, Albert-Schweitzer-Campus 1, Münster, Germany.
Sven G MeuthDepartment of Neurology with Institute of Translational Neurology, University of Münster, Albert-Schweitzer-Campus 1, Gebäude A1, 48149, Münster, Germany.
Jens MinnerupDepartment of Neurology with Institute of Translational Neurology, University of Münster, Albert-Schweitzer-Campus 1, Gebäude A1, 48149, Münster, Germany. minnerup@uni-muenster.de.
University of Münster · DEUniversity Hospital Münster · DEEvangelisches Krankenhaus Bielefeld · DEUniversity Medical Center of the Johannes Gutenberg University Mainz · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Although several studies have suggested that anti-inflammatory strategies reduce secondary infarct growth in animal stroke models, clinical studies have not yet demonstrated a clear benefit of immune modulation in patients. Potential reasons include systematic differences of post-ischemic neuroinflammation between humans and rodents. We here performed a systematic review and meta-analysis to summarize and compare the spatial and temporal distribution of immune cell infiltration in human and rodent stroke. Data on spatiotemporal distribution of immune cells (T cells, macrophages, and neutrophils) and infarct volume were extracted. Data from all rodent studies were pooled by means of a random-effect meta-analysis. Overall, 20 human and 188 rodent stroke studies were included in our analyses. In both patients and rodents, the infiltration of macrophages and neutrophils preceded the lymphocytic influx. Macrophages and neutrophils were the predominant immune cells within 72 h after infarction. Although highly heterogeneously across studies, the temporal profile of the poststroke immune response was comparable between patients and rodents. In rodent stroke, the extent of the immune cell infiltration depended on the duration and location of vessel occlusion and on the species. The density of infiltrating immune cells correlated with the infarct volume. In summary, we provide the first systematic analysis and comparison of human and rodent post-ischemic neuroinflammation. Our data suggest that the inflammatory response in rodent stroke models is comparable to that in patients with stroke. However, the overall heterogeneity of the post-ischemic immune response might contribute to the translational failure in stroke research.

Indexed as

Brain IschemiaIschemic StrokeStrokeAnimalsBrainDisease Models, AnimalHumansMiceMice, Inbred C57BLRatsImmune cell infiltrationInflammationIschemic strokeMeta-analysis

Identifiers

PMID33496918
PMCPMC8557159
OpenAlexW3122133116

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.