Evidence map›Paper›PMID 34506261›Full record

ArticleBioengineered2021

Argon inhibits reactive oxygen species oxidative stress via the miR-21-mediated PDCD4/PTEN pathway to prevent myocardial ischemia/reperfusion injury.

Hong Qi, Jiancheng Zhang, You Shang, Shiying Yuan, Chunqing Meng

Open access · goldAbstract read
In one paragraph

Article in Bioengineered, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 1 pooled it
3.3field-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

15 citing papers in PubMed, 1 synthesis or guideline pooled it, 26 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. EV-Encapsulated Mitochondrial miRNAs: Enhancing Cardiomyocyte Bioenergetics.International journal of molecular sciences · 2026
    Review
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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

5 authors at 1 institution in 1 country.

Hong QiDepartment of ICU, Union Hospital of Tongji Medical College of Huazhong University of Science and Technology, Wuhan, China.
Jiancheng ZhangDepartment of ICU, Union Hospital of Tongji Medical College of Huazhong University of Science and Technology, Wuhan, China.
You ShangDepartment of ICU, Union Hospital of Tongji Medical College of Huazhong University of Science and Technology, Wuhan, China.
Shiying YuanDepartment of ICU, Union Hospital of Tongji Medical College of Huazhong University of Science and Technology, Wuhan, China.
Chunqing MengDepartment of Orthopedic Surgery, Union Hospital of Tongji Medical College of Huazhong University of Science and Technology, Wuhan, China.ORCID 0000-0002-7659-3493
Wuhan Union Hospital · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The objective of this study was to explore the effect of argon preconditioning on myocardial ischemia reperfusion (MI/R) injury and its mechanism. Cardiomyocytes H2C9 were pre-treated with 50% argon, and a cell model of oxygen-glucose deprivation (OGD) was established. CCK-8 and cytotoxicity detection kits were used to detect cell viability and lactate dehydrogenase (LDH) release. The miR-21 expression was detected using quantitative real-time polymerase chain reaction. Western blot analysis was performed to detect the expression of programmed cell death protein 4 (PDCD4) and homologous phosphatase and tensin homolog (PTEN) proteins. The levels of inflammatory factors (IL-1β, IL-6, and IL-8) and oxidative stress factors (reactive oxygen species ROS], malondialdehyde [MDA], and superoxide dismutase [SOD]) were measured using an enzyme-linked immunosorbent assay. The effect of argon on cell apoptosis was detected using flow cytometry. Argon increased the proliferation of cardiomyocytes induced by OGD, decreased the release of LDH in cell culture medium, increased miR-21 expression in cells, decreased the expression of miR-21 target proteins PDCD4 and PTEN, decreased the levels of inflammatory factors (interleukin-1β [IL-1β], interleukin-6 [IL-6], and interleukin-8 [IL-8]) and oxidative stress factors (ROS and MDA), increased the SOD content, and decreased the cell apoptosis rate. Our results suggest that argon preconditioning inhibited the PDCD4/PTEN pathway via miR-21, thereby inhibiting ROS oxidative stress and preventing MI/R injury.

Indexed as

AnimalsApoptosis Regulatory ProteinsArgonCell LineMicroRNAsMyocardial Reperfusion InjuryOxidative StressPTEN PhosphohydrolaseRatsReactive Oxygen SpeciesSignal TransductionApoptosis Regulatory ProteinsArgonMicroRNAsmirn21 microRNA, ratPdcd4 protein, ratPTEN PhosphohydrolasePten protein, ratReactive Oxygen SpeciesArgonmiR-21PDCD4/PTEN pathwayROS oxidative

Identifiers

PMID34506261
PMCPMC8806883
OpenAlexW3197886061

What OpenQuestion holds

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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.