Evidence map›Paper›PMID 23321442›Full record

ArticleStroke2013

Medial premotor cortex shows a reduction in inhibitory markers and mediates recovery in a mouse model of focal stroke.

Steven R Zeiler, Ellen M Gibson, Robert E Hoesch, Ming Y Li, Paul F Worley, Richard J O'Brien, John W Krakauer

Erratum issuedAbstract read
In one paragraph

Article in Stroke, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 55 papers.

0numbers the graph read from it
0cells of the map it votes in
55citing papers in PubMed
7.2field-weighted citation impact, top 3% 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

55 citing papers in PubMed, 98 citations in OpenAlex.

  1. Trial
  2. Trial
  3. Trial
  4. Article
  5. Article
  6. Article
  7. Article
  8. Review
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Review
  18. Poststroke Impairment and Recovery Are Predicted by Task-Specific Regionalization of Injury.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2020
    Article
  19. Article
  20. Article
4 · The record

Corrections and comments

  • Erratum issued
5 · Who and what money

Authors and funding

7 authors at 2 institutions in 1 country.

Steven R ZeilerDepartment of Neurology, the Johns Hopkins Hospital, Meyer 6-113, 600 N Wolfe St, Baltimore, MD 21287, USA. sz@jhmi.edu
Ellen M Gibson
Robert E Hoesch
Ming Y Li
Paul F Worley
Richard J O'Brien
John W Krakauer
Johns Hopkins University · USUniversity of Utah · US

Funding

Murine Mutagenesis CoreP30NS050274 · NINDS · JOHNS HOPKINS UNIVERSITY · PI KOLODKIN, ALEX L · 2005 to 2020
$10.9M
Signaling to and from the SynapseP50MH084020 · NIMH · JOHNS HOPKINS UNIVERSITY · PI HUGANIR, RICHARD L · 2008 to 2012
$9.2M
NEURONAL ACTIVITY REGULATED PENTRAXIN AND GLUTAMATE RECR01NS039156 · NINDS · JOHNS HOPKINS UNIVERSITY · PI WORLEY, PAUL F · 1999 to 2012
$4.9M
Functional Anatomy of Visuomotor Learning & Motor MemoryR01NS052804 · NINDS · JOHNS HOPKINS UNIVERSITY · PI KRAKAUER, JOHN WALTER · 2007 to 2011
$1.6M
NIMH NIH HHS MH084020NIMH NIH HHS P50 MH084020NINDS NIH HHS P30 NS050274NINDS NIH HHS R01 NS039156NINDS NIH HHS R01 NS052804NINDS NIH HHS R01 NS052804-05NINDS NIH HHS R01 NS39156
6 · The paper itself

Abstract

background and purposeMotor recovery after ischemic stroke in primary motor cortex is thought to occur in part through training-enhanced reorganization in undamaged premotor areas, enabled by reductions in cortical inhibition. Here we used a mouse model of focal cortical stroke and a double-lesion approach to test the idea that a medial premotor area (medial agranular cortex [AGm]) reorganizes to mediate recovery of prehension, and that this reorganization is associated with a reduction in inhibitory interneuron markers.

methodsC57Bl/6 mice were trained to perform a skilled prehension task to an asymptotic level of performance after which they underwent photocoagulation-induced stroke in the caudal forelimb area. The mice were then retrained and inhibitory interneuron immunofluorescence was assessed in prechosen, anatomically defined neocortical areas. Mice then underwent a second photocoagulation-induced stroke in AGm.

resultsFocal caudal forelimb area stroke led to a decrement in skilled prehension. Training-associated recovery of prehension was associated with a reduction in parvalbumin, calretinin, and calbindin expression in AGm. Subsequent infarction of AGm led to reinstatement of the original deficit.

conclusionsWe conclude that with training, AGm can reorganize after a focal motor stroke and serve as a new control area for prehension. Reduced inhibition may represent a marker for reorganization or it is necessary for reorganization to occur. Our mouse model, with all of the attendant genetic benefits, may allow us to determine at the cellular and molecular levels how behavioral training and endogenous plasticity interact to mediate recovery.

Indexed as

Disease Models, AnimalAnimalsMaleMiceMice, Inbred C57BLMotor CortexMotor SkillsNeural InhibitionNeuronal PlasticityRecovery of FunctionStroke

Identifiers

PMID23321442
PMCPMC4086919
OpenAlexW1979226561

What OpenQuestion holds

Textmetadata
LicenceTDM
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.