Evidence map›Paper›PMID 21454756›Full record

ArticleCirculation research2011

Repair of the injured adult heart involves new myocytes potentially derived from resident cardiac stem cells.

David Angert, Remus M Berretta, Hajime Kubo, Hongyu Zhang, Xiongwen Chen, Wei Wang, Barbara Ogorek, Mary Barbe, Steven R Houser

Open access · bronzeAbstract readComparative Study
In one paragraph

Article in Circulation research, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 48 papers.

0numbers the graph read from it
0cells of the map it votes in
48citing papers in PubMed
12.7field-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

48 citing papers in PubMed, 93 citations in OpenAlex.

  1. Review
  2. Mechanisms and implications of sex differences in cardiac aging.The journal of cardiovascular aging · 2022
    Article
  3. Article
  4. Alteration in ventricular pressure stimulates cardiac repair and remodeling.Journal of molecular and cellular cardiology · 2019
    Article
  5. Article
  6. Article
  7. Assessing Stem Cell DNA Integrity for Cardiac Cell Therapy.Journal of visualized experiments : JoVE · 2019
    Article
  8. Review
  9. Article
  10. Article
  11. Article
  12. Article
  13. Review
  14. Article
  15. Article
  16. Advances in stem cell therapy for cardiovascular disease (Review).International journal of molecular medicine · 2016
    Review
  17. Mechanisms of Cardiac Regeneration.Developmental cell · 2016
    Review
  18. miR-21 Reduces Hydrogen Peroxide-Induced Apoptosis in c-kitOxidative medicine and cellular longevity · 2016
    Article
  19. Article
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

9 authors at 1 institution in 1 country.

David AngertCardiovascular Research Center, Temple University School of Medicine, Philadelphia, PA 19140, USA.
Remus M Berretta
Hajime Kubo
Hongyu Zhang
Xiongwen Chen
Wei Wang
Barbara Ogorek
Mary Barbe
Steven R Houser
Silesian Center for Heart Disease · PL

Funding

Targeted Cancer Therapeutics and Heart Failure: Mechanisms and Post-injury RepairP01HL091799 · NHLBI · THOMAS JEFFERSON UNIVERSITY · PI KOCH, WALTER J. · 2008 to 2018
$23.1M
Calcium and Cardiac Regeneration after Myocardial InfarctionR01HL033921 · NHLBI · TEMPLE UNIV OF THE COMMONWEALTH · PI HOUSER, STEVEN R · 1985 to 2017
$5.6M
Protein Kinase A Inhibitor Peptide (PKI) and Cardiac Protection in Heart FailureR01HL088243 · NHLBI · TEMPLE UNIV OF THE COMMONWEALTH · PI CHEN, XIONGWEN · 2007 to 2017
$4.0M
Calcium as a Molecular Signal in the HeartR01HL089312 · NHLBI · TEMPLE UNIV OF THE COMMONWEALTH · PI HOUSER, STEVEN R · 2007 to 2011
$3.7M
Ca2+ Regulation in Newly Formed Ventricular MyocytesR37HL033921 · NHLBI · TEMPLE UNIV OF THE COMMONWEALTH · PI HOUSER, STEVEN R · 2009 to 2013
$2.2M
Stem Cell Mediated Repair of the Injured HeartF30HL095322 · NHLBI · TEMPLE UNIV OF THE COMMONWEALTH · PI ANGERT, DAVID WILLIAM · 2009 to 2011
$106k
NHLBI NIH HHS F30 HL095322NHLBI NIH HHS HL033921NHLBI NIH HHS HL089312NHLBI NIH HHS HL091799NHLBI NIH HHS HL095322NHLBI NIH HHS P01 HL091799NHLBI NIH HHS R01 HL033921NHLBI NIH HHS R01 HL088243NHLBI NIH HHS R01 HL089312NHLBI NIH HHS R01 HL090979NHLBI NIH HHS R37 HL033921
6 · The paper itself

Abstract

rationaleThe ability of the adult heart to generate new myocytes after injury is not established.

objectiveOur purpose was to determine whether the adult heart has the capacity to generate new myocytes after injury, and to gain insight into their source. METHODS AND

resultsCardiac injury was induced in the adult feline heart by infusing isoproterenol (ISO) for 10 days via minipumps, and then animals were allowed to recover for 7 or 28 days. Cardiac function was measured with echocardiography, and proliferative cells were identified by nuclear incorporation of 5-bromodeoxyuridine (BrdU; 7-day minipump infusion). BrdU was infused for 7 days before euthanasia at days 10, 17, and 38 or during injury and animals euthanized at day 38. ISO caused reduction in cardiac function with evidence of myocyte loss from necrosis. During this injury phase there was a significant increase in the number of proliferative cells in the atria and ventricle, but there was no increase in BrdU+ myocytes. cKit+ cardiac progenitor cells were BrdU labeled during injury. During the first 7 days of recovery there was a significant reduction in cellular proliferation (BrdU incorporation) but a significant increase in BrdU+ myocytes. There was modest improvement in cardiac structure and function during recovery. At day 38, overall cell proliferation was not different than control, but increased numbers of BrdU+ myocytes were found when BrdU was infused during injury.

conclusionsThese studies suggest that ISO injury activates cardiac progenitor cells that can differentiate into new myocytes during cardiac repair.

Indexed as

Age FactorsAnimalsCardiomyopathiesCatsCell DifferentiationIsoproterenolMyocytes, CardiacRecovery of FunctionStem CellsIsoproterenol

Identifiers

PMID21454756
PMCPMC3322670
OpenAlexW2117819494

What OpenQuestion holds

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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.