Evidence map›Paper›PMID 34413770›Full record

ArticleFrontiers in pharmacology2021

Aging-Associated Differences in Epitranscriptomic m6A Regulation in Response to Acute Cardiac Ischemia/Reperfusion Injury in Female Mice.

Xuan Su, Yan Shen, Yue Jin, Il-Man Kim, Neal L Weintraub, Yaoliang Tang

Open access · goldAbstract read
In one paragraph

Article in Frontiers in pharmacology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed
3.0field-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

29 citing papers in PubMed, 47 citations in OpenAlex.

  1. Review
  2. Review
  3. Review
  4. Article
  5. METTL3: a multifunctional regulator in diseases.Molecular and cellular biochemistry · 2025
    Review
  6. Review
  7. Article
  8. N6-methyladenosine RNA landscape in the aged mouse hearts.Frontiers in cardiovascular medicine · 2025
    Article
  9. Article
  10. Unlocking the dark matter: noncoding RNAs and RNA modifications in cardiac aging.American journal of physiology. Heart and circulatory physiology · 2024
    Review
  11. Article
  12. Aging-Associated ALKBH5-mJournal of the American Heart Association · 2024
    Article
  13. Review
  14. FTO in health and disease.Frontiers in cell and developmental biology · 2024
    Review
  15. Article
  16. Key mBMC medical genomics · 2023
    Article
  17. RNA modification mEpigenetics · 2023
    Review
  18. Review
  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

6 authors at 2 institutions in 1 country.

Xuan SuVascular Biology Center, Medical College of Georgia, Augusta University, Augusta, GA, United States.
Yan ShenVascular Biology Center, Medical College of Georgia, Augusta University, Augusta, GA, United States.
Yue JinVascular Biology Center, Medical College of Georgia, Augusta University, Augusta, GA, United States.
Il-Man KimAnatomy, Cell Biology & Physiology, Indiana University School of Medicine, Indianapolis, IN, United States.
Neal L WeintraubVascular Biology Center, Medical College of Georgia, Augusta University, Augusta, GA, United States.
Yaoliang TangVascular Biology Center, Medical College of Georgia, Augusta University, Augusta, GA, United States.
Augusta University · USIndiana University School of Medicine

Funding

Notch1/miR-322 Axis in Stem Cell Mediated Vascular RepairR01HL134354 · NHLBI · AUGUSTA UNIVERSITY · PI ASHRAF, MUHAMMAD, TANG, YAO LIANG · 2016 to 2020
$2.5M
Beta-arrestin signaling and microRNA biogenesis in cardioprotectionR01HL124251 · NHLBI · INDIANA UNIVERSITY INDIANAPOLIS · PI KIM, IL-MAN · 2014 to 2018
$1.9M
Identifying novel pathways targeting endothelial-to-mesenchymal transition during heart failureR01HL146481 · NHLBI · INDIANA UNIVERSITY INDIANAPOLIS · PI KIM, IL-MAN · 2019 to 2022
$1.6M
American Heart Association-American Stroke Association 18TPA34170104NHLBI NIH HHS R01 HL124251NHLBI NIH HHS R01 HL134354NHLBI NIH HHS R01 HL146481
6 · The paper itself

Abstract

Elderly patients are more susceptible to ischemic injury. N6-methyladenosine (m6A) modification is the most abundant reversible epitranscriptomic modification in mammalian RNA and plays a vital role in many biological processes. However, it is unclear whether age difference impacts m6A RNA methylation in hearts and their response to acute myocardial ischemia/reperfusion (I/R) injury. In this study, we measured the global level of m6A RNA methylation as well as the expression of m6A RNA "writers" (methylation enzymes) and "erasers" (demethylation enzymes) in the hearts of young and elderly female mice undergone sham surgery or acute MI/R injury. We found that m6A RNA level and associate modifier gene expression was similar in intact young and old female hearts. However, young hearts show a significant reduction in m6A RNA while elderly hearts showed only a slight reduction in m6A RNA in response to acute I/R injury. To explore the mechanism of differential level of m6A RNA modification, we use qRT-PCR and Western blotting to compare the mRNA and protein expression of major m6A-related "writers" (Mettl3, Mettl14, and WTAP) and 'erasers" (ALKBH5 and FTO). Mettl3 mRNA and protein expression were significantly reduced in both young and elderly hearts. However, the levels of FTO's mRNA and protein were only significantly reduced in ischemic elderly hearts, and age-related downregulation of FTO may offset the effect of reduced Mettl3 on reduced m6A RNA level in the hearts of aging mice hearts with acute I/R injury, indicating aging-related differences in epitranscriptomic m6A regulation in hearts in response to acute I/R injury. To further investigate specific I/R related targets of Mettl3, we overexpressed Mettl3 in cardiomyocyte line (HL1) using lentiviral vector, and the m6A enrichment of Bcl2, Bax and PTEN were quantified with m6A RIP-qPCR, we found that m6A modification of PTEN mRNA decreased after

Indexed as

agingepitranscriptomicsFTOM6A RNA methylationMETTL3myocardial ischemia/reperfusionpten

Identifiers

PMID34413770
PMCPMC8369344
OpenAlexW3190516919

What OpenQuestion holds

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LicenceCC BY
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.