Evidence map›Paper›PMID 34417314›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2021

Mitochondrial fatty acid utilization increases chromatin oxidative stress in cardiomyocytes.

Ivan Menendez-Montes, Salim Abdisalaam, Feng Xiao, Nicholas T Lam, Shibani Mukherjee, Luke I Szweda, Aroumougame Asaithamby, Hesham A Sadek

Open access · hybridAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
1.9field-weighted citation impact, top 13% 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

21 citing papers in PubMed, 33 citations in OpenAlex.

  1. Review
  2. Review
  3. Article
  4. Sirt4 Deficiency Promotes Cardiomyocyte Proliferation and Cardiac Repair.Journal of cellular and molecular medicine · 2025
    Article
  5. Article
  6. Article
  7. Review
  8. Review
  9. Cardiac Metabolism.Advances in experimental medicine and biology · 2024
    Review
  10. Article
  11. Article
  12. Review
  13. Review
  14. Article
  15. Metabolic Control of Cardiomyocyte Cell Cycle.Methodist DeBakey cardiovascular journal · 2023
    Review
  16. Review
  17. Article
  18. Article
  19. Review
  20. Article
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

8 authors at 1 institution in 1 country.

Ivan Menendez-MontesDepartment of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX 75390.ORCID 0000-0001-5252-9502
Salim AbdisalaamDepartment of Radiation Oncology, University of Texas Southwestern Medical Center, Dallas, TX 75390.ORCID 0000-0002-6466-9833
Feng XiaoDepartment of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX 75390.
Nicholas T LamDepartment of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX 75390.
Shibani MukherjeeDepartment of Radiation Oncology, University of Texas Southwestern Medical Center, Dallas, TX 75390.
Luke I SzwedaDepartment of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX 75390.ORCID 0000-0003-1858-5484
Aroumougame AsaithambyDepartment of Radiation Oncology, University of Texas Southwestern Medical Center, Dallas, TX 75390; Asaithamby.Aroumougame@UTsouthwestern.edu hesham.sadek@utsouthwestern.edu.ORCID 0000-0001-5195-4224
Hesham A SadekDepartment of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX 75390; Asaithamby.Aroumougame@UTsouthwestern.edu hesham.sadek@utsouthwestern.edu.
The University of Texas Southwestern Medical Center · US

Funding

Oxidative DNA Damage Regulates Cardiomyocyte ProliferationR01HL138983 · NHLBI · UT SOUTHWESTERN MEDICAL CENTER · PI SADEK, HESHAM, SZWEDA, LUKE IGNATIUS · 2018 to 2021
$3.1M
Role of Meis1 in Regulation of Cardiomyocyte ProliferationR01HL115275 · NHLBI · UT SOUTHWESTERN MEDICAL CENTER · PI SADEK, HESHAM · 2012 to 2016
$2.4M
Molecular Roles for Werner Syndrome Protein in Replication Fork MaintenanceR01AG053341 · NIA · UT SOUTHWESTERN MEDICAL CENTER · PI AROUMOUGAME, ASAITHAMBY · 2016 to 2020
$1.7M
NHLBI NIH HHS R01 HL115275NHLBI NIH HHS R01 HL138983NIA NIH HHS R01 AG053341
6 · The paper itself

Abstract

The inability of adult mammalian cardiomyocytes to proliferate underpins the development of heart failure following myocardial injury. Although the newborn mammalian heart can spontaneously regenerate for a short period of time after birth, this ability is lost within the first week after birth in mice, partly due to increased mitochondrial reactive oxygen species (ROS) production which results in oxidative DNA damage and activation of DNA damage response. This increase in ROS levels coincides with a postnatal switch from anaerobic glycolysis to fatty acid (FA) oxidation by cardiac mitochondria. However, to date, a direct link between mitochondrial substrate utilization and oxidative DNA damage is lacking. Here, we generated ROS-sensitive fluorescent sensors targeted to different subnuclear compartments (chromatin, heterochromatin, telomeres, and nuclear lamin) in neonatal rat ventricular cardiomyocytes, which allowed us to determine the spatial localization of ROS in cardiomyocyte nuclei upon manipulation of mitochondrial respiration. Our results demonstrate that FA utilization by the mitochondria induces a significant increase in ROS detection at the chromatin level compared to other nuclear compartments. These results indicate that mitochondrial metabolic perturbations directly alter the nuclear redox status and that the chromatin appears to be particularly sensitive to the prooxidant effect of FA utilization by the mitochondria.

Indexed as

AnimalsCell LineCell ProliferationDNA DamageFatty AcidsMiceMitochondriaMyocytes, CardiacOxidative StressReactive Oxygen SpeciesFatty AcidsReactive Oxygen Speciesmetabolismmitochondriareactive oxygen species

Identifiers

PMID34417314
PMCPMC8403954
OpenAlexW3195725637

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.