Evidence map›Paper›PMID 32021092›Full record

ArticleDrug design, development and therapy2020

Sappanone A Protects Against Myocardial Ischemia Reperfusion Injury by Modulation of Nrf2.

Xiaojing Shi, Guizhou Tao, Lili Ji, Ge Tian

Open access · goldAbstract read
In one paragraph

Article in Drug design, development and therapy, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
3.4field-weighted citation impact, top 8% 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

20 citing papers in PubMed, 45 citations in OpenAlex.

  1. Article
  2. Sappanone A Promotes Motor Function Recovery in Spinal Cord Injury Mice by Inhibiting Microglial M1 Polarization via Activation of the Keap1/Nrf2 Pathway.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2025
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  11. Unlocking the therapeutic mechanism ofFrontiers in pharmacology · 2024
    Review
  12. Article
  13. Sappanone A Alleviated IL-1Disease markers · 2022
    Article
  14. Article
  15. Review
  16. [Melatonin alleviates myocardial ischemia-reperfusion injury in mice by inhibiting inflammatory responseNan fang yi ke da xue xue bao = Journal of Southern Medical University · 2021
    Article
  17. Article
  18. Article
  19. Protective Effects ofFrontiers in pharmacology · 2021
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  20. Review
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

4 authors at 1 institution in 1 country.

Xiaojing ShiDepartment of Cardiology, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, People's Republic of China.
Guizhou TaoDepartment of Cardiology, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, People's Republic of China.
Lili JiDepartment of Cardiology, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, People's Republic of China.
Ge TianDepartment of Cardiology, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, People's Republic of China.
Jinzhou Medical University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundOxidative stress is a major contributor to the onset and development of myocardial ischemia reperfusion injury (MIRI). Sappanone A (SA), a homoisoflavanone extracted from the heartwood of

methodsThe rat hearts were isolated and underwent 30-min ischemia, followed by 120-min reperfusion to establish the MIRI model, using the Langendorff method. SA was administrated intraperitoneally into rats 1 h prior to heart isolation. The myocardial infarct size and apoptosis were measured by TTC and terminal deoxynucleotidyl transferase dUTP nick end labeling staining. Myocardial enzyme activity, MDA content and the activities of SOD and GSH-Px were detected by colorimetric spectrophotometric method. Reactive oxygen species (ROS) level was detected by DCFH-DA probe. The change in Keap1/Nrf2 signaling pathway was evaluated by Western blotting.

resultsSA reduced myocardial infarct size and the release of CK-MB and LDH in a dose-dependent manner. Moreover, SA improved the recovery of cardiac function, inhibited MIRI-induced apoptosis, repressed the production of ROS and MDA, and enhanced the activities of SOD and GSH-Px. Mechanistically, SA downregulated Keap1, induced Nrf2 nuclear accumulation, and enhanced Nrf2 transcriptional activity, subsequently resulting in an increase in the expression of the Nrf2 target genes heme oxygenase-1 and NAD(P)H quinone dehydrogenase 1. Moreover, SA enhanced the phosphorylation of Nfr2, but the enhancement in Nfr2 phosphorylation was abrogated by PKC or PI3K inhibitor.

conclusionCollectively, it was demonstrated that SA prevents MIRI via coordinating the cellular antioxidant defenses and maintaining the redox balance, by modulation of Nrf2 via the PKC or PI3K pathway. Therefore, SA was a potential therapeutic drug for treating MIRI.

Indexed as

AnimalsApoptosisInjections, IntraperitonealIsoflavonesMaleMolecular StructureMyocardial Reperfusion InjuryNF-E2-Related Factor 2Oxidative StressPhosphorylationProtective AgentsRatsRats, WistarReactive Oxygen SpeciesSignal TransductionIsoflavonesNfe2l2 protein, ratNF-E2-Related Factor 2Protective AgentsReactive Oxygen Speciessappanone Aapoptosismyocardial ischemia reperfusion injuryNrf2oxidative stressSappanone A

Identifiers

PMID32021092
PMCPMC6955610
OpenAlexW2999933153

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.