Evidence map›Paper›PMID 27909265›Full record

ArticleJournal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism2017

Prevention of the collapse of pial collaterals by remote ischemic perconditioning during acute ischemic stroke.

Junqiang Ma, Yonglie Ma, Bin Dong, Mischa V Bandet, Ashfaq Shuaib, Ian R Winship

Open access · bronzeAbstract read
In one paragraph

Article in Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 41 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
41citing papers in PubMed, 1 pooled it
2.7field-weighted citation impact, top 10% 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

41 citing papers in PubMed, 1 synthesis or guideline pooled it, 56 citations in OpenAlex.

  1. Pooled it
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  11. Collateral is brain: Low perfusion triggers spreading depolarization and futile reperfusion after acute ischemic stroke.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2024
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  12. Review
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  14. No-reflow after recanalization in ischemic stroke: From pathomechanisms to therapeutic strategies.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2024
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  19. Therapeutic Induction of Collateral Flow.Translational stroke research · 2023
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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

6 authors at 3 institutions in 2 countries.

Junqiang Ma1 Neuroscience and Mental Health Institute, University of Alberta, Edmonton, AB, Canada.
Yonglie Ma2 Neurochemical Research Unit, Department of Psychiatry, University of Alberta, Edmonton, AB, Canada.
Bin Dong2 Neurochemical Research Unit, Department of Psychiatry, University of Alberta, Edmonton, AB, Canada.
Mischa V Bandet1 Neuroscience and Mental Health Institute, University of Alberta, Edmonton, AB, Canada.
Ashfaq Shuaib1 Neuroscience and Mental Health Institute, University of Alberta, Edmonton, AB, Canada.
Ian R Winship1 Neuroscience and Mental Health Institute, University of Alberta, Edmonton, AB, Canada.
University of Alberta · CAFirst Affiliated Hospital of Shantou University Medical College · CNWomen and Children’s Health Research Institute · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Collateral circulation is a key variable determining prognosis and response to recanalization therapy during acute ischemic stroke. Remote ischemic perconditioning (RIPerC) involves inducing peripheral ischemia (typically in the limbs) during stroke and may reduce perfusion deficits and brain damage due to cerebral ischemia. In this study, we directly investigated pial collateral flow augmentation due to RIPerC during distal middle cerebral artery occlusion (MCAo) in rats. Blood flow through pial collaterals between the anterior cerebral artery (ACA) and the MCA was assessed in male Sprague Dawley rats using in vivo laser speckle contrast imaging (LSCI) and two photon laser scanning microscopy (TPLSM) during distal MCAo. LSCI and TPLSM revealed that RIPerC augmented collateral flow into distal MCA segments. Notably, while control rats exhibited an initial dilation followed by a progressive narrowing of pial arterioles 60 to 150-min post-MCAo (constricting to 80-90% of post-MCAo peak diameter), this constriction was prevented or reversed by RIPerC (such that vessel diameters increased to 105-110% of post-MCAo, pre-RIPerC diameter). RIPerC significantly reduced early ischemic damage measured 6 h after stroke onset. Thus, prevention of collateral collapse via RIPerC is neuroprotective and may facilitate other protective or recanalization therapies by improving blood flow in penumbral tissue.

Indexed as

AnimalsBrain IschemiaCerebral VeinsCerebrovascular CirculationCollateral CirculationDisease Models, AnimalIschemic PostconditioningIschemic PreconditioningMaleMicroscopy, ConfocalRats, Sprague-DawleyStrokeCollateral circulationischemialaser speckle contrast imagingneuroprotectiontwo-photon microscopy

Identifiers

PMID27909265
PMCPMC5536804
OpenAlexW2558355258

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.