Evidence map›Paper›PMID 34593988›Full record

ArticleNature biomedical engineering2021

Injectable and conductive cardiac patches repair infarcted myocardium in rats and minipigs.

Leyu Wang, Yuqing Liu, Genlan Ye, Yutong He, Bingyun Li, Yezhi Guan, Baoyong Gong, Kibret Mequanint, Malcolm M Q Xing, Xiaozhong Qiu

Abstract read
PubMed Publisher
In one paragraph

Article in Nature biomedical engineering, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 86 papers.

0numbers the graph read from it
0cells of the map it votes in
86citing papers in PubMed
26.6field-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

86 citing papers in PubMed, 192 citations in OpenAlex.

  1. Soft robotic devices for cardiovascular medicine.Nature reviews. Cardiology · 2026
    Review
  2. Smart Bioinks for 4D Bioprinting: Requirements, Design, and Applications.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026
    Review
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26 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

10 authors at 5 institutions in 3 countries.

Leyu Wang *Guangdong Provincial Key Laboratory of Construction and Detection in Tissue Engineering, School of Basic Medical Science; Biomaterials Research Center, School of Biomedical Engineering, Southern Medical University, Guangzhou, China.ORCID http://orcid.org/0000-0002-6547-1490
Yuqing Liu *Department of Mechanical Engineering, University of Manitoba and Children's Hospital Research Institute of Manitoba, Winnipeg, Manitoba, Canada.ORCID http://orcid.org/0000-0002-6324-1296
Genlan Ye *Guangdong Provincial Key Laboratory of Construction and Detection in Tissue Engineering, School of Basic Medical Science; Biomaterials Research Center, School of Biomedical Engineering, Southern Medical University, Guangzhou, China.ORCID http://orcid.org/0000-0002-4998-3234
Yutong HeGuangdong Provincial Key Laboratory of Construction and Detection in Tissue Engineering, School of Basic Medical Science; Biomaterials Research Center, School of Biomedical Engineering, Southern Medical University, Guangzhou, China.ORCID http://orcid.org/0000-0003-4523-7389
Bingyun LiDepartment of Orthopaedics, School of Medicine, West Virginia University, Morgantown, WV, USA.ORCID http://orcid.org/0000-0002-5766-5666
Yezhi GuanGuangdong Laboratory Animals Monitoring Institute, Guangdong Provincial Key Laboratory of Laboratory Animals, Guangzhou, China.ORCID http://orcid.org/0000-0003-0975-6042
Baoyong GongGuangdong Laboratory Animals Monitoring Institute, Guangdong Provincial Key Laboratory of Laboratory Animals, Guangzhou, China.
Kibret MequanintDepartment of Chemical and Biochemical Engineering, The University of Western Ontario, London, Ontario, Canada.ORCID http://orcid.org/0000-0002-7888-418X
Malcolm M Q XingDepartment of Mechanical Engineering, University of Manitoba and Children's Hospital Research Institute of Manitoba, Winnipeg, Manitoba, Canada. malcolm.xing@umanitoba.ca.ORCID http://orcid.org/0000-0002-3547-0462
Xiaozhong QiuGuangdong Provincial Key Laboratory of Construction and Detection in Tissue Engineering, School of Basic Medical Science; Biomaterials Research Center, School of Biomedical Engineering, Southern Medical University, Guangzhou, China. qqiuxzh@163.com.ORCID http://orcid.org/0000-0001-5944-9812
Children's Hospital Research Institute of Manitoba · CAKey Laboratory of Guangdong Province · CNGuangdong Laboratory Animals Monitoring Institute · CNWestern University · CAWest Virginia University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Cardiac patches can help to restore the electrophysiological properties of the heart after myocardial infarction. However, scaffolds for the repair of heart muscle typically require surgical implantation or, if they are injectable, they are not electrically conductive or do not maintain their shape or function. Here, we report the performance, as demonstrated for the repair of infarcted heart muscle in rats and minipigs, of injectable and conductive scaffolds consisting of methacrylated elastin and gelatin, and carbon nanotubes that display shape-memory behaviour, a hierarchical porous structure and a negligible Poisson's ratio. In rats, the implantation of cell-free patches or patches seeded with rat cardiomyocytes onto the myocardium after ligation of the left anterior descending coronary artery led to functional repair after 4 weeks, as indicated by increases in fractional shortening and the ejection fraction, and by a decrease in the infarcted area. We also observed measures of functional recovery in minipigs with infarcted hearts after the delivery of cell-free patches or patches incorporating cardiomyocytes differentiated from human pluripotent stem cells.

Indexed as

Myocardial InfarctionNanotubes, CarbonAnimalsMyocardiumMyocytes, CardiacRatsSwineSwine, MiniatureNanotubes, Carbon

Identifiers

PMID34593988
OpenAlexW3203978353

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.