Evidence map›Paper›PMID 20504874›Full record

ArticleBrain : a journal of neurology2010

Spreading depolarizations cycle around and enlarge focal ischaemic brain lesions.

Hajime Nakamura, Anthony J Strong, Christian Dohmen, Oliver W Sakowitz, Stefan Vollmar, Michael Sué, Lutz Kracht, Parastoo Hashemi, Robin Bhatia, Toshiki Yoshimine and 3 more

Registry-linked trialOpen access · hybridAbstract readComparative Study
In one paragraph

Article in Brain : a journal of neurology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT02501941 (Spreading Depolarization and Ketamine Suppression), which is not on this map. Cited by 105 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
105citing papers in PubMed, 3 pooled it
9.2field-weighted citation impact, top 1% 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.

NCT02501941 phase1completednot on this mapstarted 2015, after this paper: background citation

Spreading Depolarization and Ketamine Suppression

TypeinterventionalSponsorUniversity of New MexicoRan2015 to 2017Enrolled10ConditionsCortical Spreading Depolarization, Cortical Spreading Depression, Subarachoid Hemorrhage, Traumatic Brain InjuryArmsketamine
3 · Its place in the literature

Who cites it

105 citing papers in PubMed, 3 syntheses or guidelines pooled it, 211 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Systematic review of the pharmacological agents that have been tested against spreading depolarizations.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2018
    Pooled it
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  9. Observational
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  17. Laser speckle imaging of the hippocampus.Biomedical optics express · 2024
    Article
  18. Brain-wide continuous functional ultrasound imaging for real-time monitoring of hemodynamics during ischemic stroke.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2024
    Article
  19. Role of Microglia in Stroke.Advances in neurobiology · 2024
    Review
  20. Article

45 more citing papers are in PubMed but not listed here.

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

13 authors at 7 institutions in 4 countries.

Hajime NakamuraMax Planck Institute for Neurological Research, Gleueler Str. 50, 50931 Cologne, Germany.
Anthony J Strong
Christian Dohmen
Oliver W Sakowitz
Stefan Vollmar
Michael Sué
Lutz Kracht
Parastoo Hashemi
Robin Bhatia
Toshiki Yoshimine
Jens P Dreier
Andrew K Dunn
Rudolf Graf
Max Planck Institute for Metabolism Research · DEOsaka University · JPCharité - Universitätsmedizin Berlin · DEHeidelberg University · DEImperial College London · GBKing's College London · GBThe University of Texas at Austin · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

How does infarction in victims of stroke and other types of acute brain injury expand to its definitive size in subsequent days? Spontaneous depolarizations that repeatedly spread across the cerebral cortex, sometimes at remarkably regular intervals, occur in patients with all types of injury. Here, we show experimentally with in vivo real-time imaging that similar, spontaneous depolarizations cycle repeatedly around ischaemic lesions in the cerebral cortex, and enlarge the lesion in step with each cycle. This behaviour results in regular periodicity of depolarization when monitored at a single point in the lesion periphery. We present evidence from clinical monitoring to suggest that depolarizations may cycle in the ischaemic human brain, perhaps explaining progressive growth of infarction. Despite their apparent detrimental role in infarct growth, we argue that cycling of depolarizations around lesions might also initiate upregulation of the neurobiological responses involved in repair and remodelling.

Indexed as

PeriodicityAnimalsBrain IschemiaCatsCerebrovascular CirculationCortical Spreading DepressionFemaleHumansMaleRatsRats, Wistar

Identifiers

PMID20504874
PMCPMC2892938
OpenAlexW2065068139

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
Read underepoch 390

Registered trials

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.