Evidence map›Paper›PMID 36332027›Full record

ArticleScience advances2022

Tissue-engineered grafts exploit axon-facilitated axon regeneration and pathway protection to enable recovery after 5-cm nerve defects in pigs.

Douglas H Smith, Justin C Burrell, Kevin D Browne, Kritika S Katiyar, Mindy I Ezra, John L Dutton, Joseph P Morand, Laura A Struzyna, Franco A Laimo, H Isaac Chen and 7 more

Open access · goldAbstract read
In one paragraph

Article in Science advances, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
3.1field-weighted citation impact, top 7% 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

23 citing papers in PubMed, 35 citations in OpenAlex.

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  8. The interaction between oxidative stress and Schwann cells.Experimental biology and medicine (Maywood, N.J.) · 2026
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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

17 authors at 5 institutions in 1 country.

Douglas H SmithCenter for Brain Injury and Repair, Department of Neurosurgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.ORCID 0000-0002-0813-421X
Justin C BurrellCenter for Brain Injury and Repair, Department of Neurosurgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.ORCID 0000-0002-5361-9224
Kevin D BrowneCenter for Brain Injury and Repair, Department of Neurosurgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.
Kritika S KatiyarCenter for Brain Injury and Repair, Department of Neurosurgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.ORCID 0000-0002-7646-312X
Mindy I EzraCenter for Brain Injury and Repair, Department of Neurosurgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.
John L DuttonCenter for Brain Injury and Repair, Department of Neurosurgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.
Joseph P MorandCenter for Brain Injury and Repair, Department of Neurosurgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.ORCID 0000-0002-9424-8706
Laura A StruzynaCenter for Brain Injury and Repair, Department of Neurosurgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.
Franco A LaimoCenter for Brain Injury and Repair, Department of Neurosurgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.ORCID 0000-0003-1147-2348
H Isaac ChenCenter for Brain Injury and Repair, Department of Neurosurgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.ORCID 0000-0002-7431-6046
John A WolfCenter for Brain Injury and Repair, Department of Neurosurgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.ORCID 0000-0002-6950-2303
Hilton M KaplanNew Jersey Center for Biomaterials, Rutgers University, Piscataway, NJ, USA.ORCID 0000-0001-5724-7395
Joseph M RosenDivision of Plastic Surgery, Dartmouth Hitchcock Medical Center, Dartmouth College, Lebanon, NH, USA.
Harry C LedeburAxonova Medical LLC, Philadelphia, PA, USA.ORCID 0000-0001-8011-8655
Eric L ZagerCenter for Brain Injury and Repair, Department of Neurosurgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.ORCID 0000-0002-6402-0516
Zarina S AliCenter for Brain Injury and Repair, Department of Neurosurgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.ORCID 0000-0002-9048-0487
D Kacy CullenCenter for Brain Injury and Repair, Department of Neurosurgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.ORCID 0000-0002-5355-5216
Philadelphia VA Medical Center · USNova Medical (United States) · USUniversity of Pennsylvania · USDartmouth–Hitchcock Medical Center · USRutgers, The State University of New Jersey · US

Funding

Resource Core for National Swine Resource and Research Center (NSRRC) Years 21-25U42OD011140 · OD · UNIVERSITY OF MISSOURI-COLUMBIA · PI RANDALL S PRATHER · 2012 to 2026
$26.7M
NRSA Training CoreTL1TR001880 · NCATS · UNIVERSITY OF PENNSYLVANIA · PI MEAGHER, EMMA ANNE · 2016 to 2025
$10.0M
Mechanisms for Axonal Guidance Using Living Tissue Engineered ScaffoldsF31NS090746 · NINDS · DREXEL UNIVERSITY · PI KATIYAR, KRITIKA · 2015 to 2017
$91k
BLRD VA I01 BX003748NCATS NIH HHS TL1 TR001880NIH HHS U42 OD011140NINDS NIH HHS F31 NS090746RRD VA IK2 RX001479RRD VA IK2 RX002013
6 · The paper itself

Abstract

Functional restoration following major peripheral nerve injury (PNI) is challenging, given slow axon growth rates and eventual regenerative pathway degradation in the absence of axons. We are developing tissue-engineered nerve grafts (TENGs) to simultaneously "bridge" missing nerve segments and "babysit" regenerative capacity by providing living axons to guide host axons and maintain the distal pathway. TENGs were biofabricated using porcine neurons and "stretch-grown" axon tracts. TENG neurons survived and elicited axon-facilitated axon regeneration to accelerate regrowth across both short (1 cm) and long (5 cm) segmental nerve defects in pigs. TENG axons also closely interacted with host Schwann cells to maintain proregenerative capacity. TENGs drove regeneration across 5-cm defects in both motor and mixed motor-sensory nerves, resulting in dense axon regeneration and electrophysiological recovery at levels similar to autograft repairs. This approach of accelerating axon regeneration while maintaining the pathway for long-distance regeneration may achieve recovery after currently unrepairable PNIs.

Identifiers

PMID36332027
PMCPMC9635828
OpenAlexW4308338898

What OpenQuestion holds

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LicenceCC BY-NC
Read underepoch 390

Registered trials

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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.