Evidence map›Paper›PMID 27031811›Full record

ArticleBiomaterials2016

ECM hydrogel for the treatment of stroke: Characterization of the host cell infiltrate.

Harmanvir Ghuman, Andre R Massensini, Julia Donnelly, Sung-Min Kim, Christopher J Medberry, Stephen F Badylak, Michel Modo

Open access · greenAbstract read
In one paragraph

Article in Biomaterials, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 66 papers.

0numbers the graph read from it
0cells of the map it votes in
66citing papers in PubMed
17.6field-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.

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

66 citing papers in PubMed, 138 citations in OpenAlex.

  1. Review
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  7. Long-termNanoscale advances · 2024
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  11. Enabling Survival of Transplanted Neural Precursor Cells in the Ischemic Brain.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2023
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6 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

7 authors at 2 institutions in 2 countries.

Harmanvir GhumanMcGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA, USA; Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA, USA.
Andre R MassensiniMcGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA, USA; Department of Radiology, University of Pittsburgh, Pittsburgh, PA, USA; Universidade Federal de Minas Gerais, Department of Physiology and Biophysics, Belo Horizonte, Brazil.
Julia DonnellyDepartment of Biological Sciences, University of Pittsburgh, Pittsburgh, PA, USA.
Sung-Min KimDepartment of Bioengineering, University of Pittsburgh, Pittsburgh, PA, USA.
Christopher J MedberryMcGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA, USA; Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA, USA.
Stephen F BadylakMcGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA, USA; Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA, USA; Department of Surgery, University of Pittsburgh, Pittsburgh, PA, USA.
Michel ModoMcGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA, USA; Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA, USA; Department of Radiology, University of Pittsburgh, Pittsburgh, PA, USA. Electronic address: modomm@upmc.edu.
University of Pittsburgh · USUniversidade Federal de Minas Gerais · BR

Funding

Non-invasive Imaging of the In Situ Restoration of Brain TissueR01NS082226 · NINDS · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI MODO, MICHEL M. · 2014 to 2016
$921k
NINDS NIH HHS R01 NS082226NINDS NIH HHS R01NS08226
6 · The paper itself

Abstract

Brain tissue loss following stroke is irreversible with current treatment modalities. The use of an acellular extracellular matrix (ECM), formulated to produce a hydrogel in situ within the cavity formed by a stroke, was investigated as a method to replace necrotic debris and promote the infiltration of host brain cells. Based on magnetic resonance imaging measurements of lesion location and volume, different concentrations of ECM (0, 1, 2, 3, 4, 8 mg/mL) were injected at a volume equal to that of the cavity (14 days post-stroke). Retention of ECM within the cavity occurred at concentrations >3 mg/mL. A significant cell infiltration into the ECM material in the lesion cavity occurred with an average of ∼36,000 cells in the 8 mg/mL concentration within 24 h. An infiltration of cells with distances of >1500 μm into the ECM hydrogel was observed, but the majority of cells were at the tissue/hydrogel boundary. Cells were typically of a microglia, macrophage, or neural and oligodendrocyte progenitor phenotype. At the 8 mg/mL concentration, ∼60% of infiltrating cells were brain-derived phenotypes and 30% being infiltrating peripheral macrophages, polarizing toward an M2-like anti-inflammatory phenotype. These results suggest that an 8 mg/mL ECM concentration promotes a significant acute endogenous repair response that could potentially be exploited to treat stroke.

Indexed as

AnimalsBrainExtracellular MatrixHydrogel, Polyethylene Glycol DimethacrylateInfarction, Middle Cerebral ArteryMacrophagesMaleMicrogliaRats, Sprague-DawleyStrokeSwineTissue ScaffoldsHydrogel, Polyethylene Glycol DimethacrylateBiomaterialBrainDeliveryExtracellular matrixHydrogelInjectionMacrophageMagnetic resonance imagingNeural progenitorPhenotypesStereotacticStroke

Identifiers

PMID27031811
PMCPMC4893791
OpenAlexW2317086255

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.