Evidence map›Paper›PMID 31077347›Full record

ArticleBritish journal of pharmacology2019

Spermidine-enhanced autophagic flux improves cardiac dysfunction following myocardial infarction by targeting the AMPK/mTOR signalling pathway.

Jing Yan, Jian-Yun Yan, Yu-Xi Wang, Yuan-Na Ling, Xu-Dong Song, Si-Yi Wang, Hai-Qiong Liu, Qi-Cai Liu, Ya Zhang, Ping-Zhen Yang and 2 more

Open access · bronzeAbstract read
In one paragraph

Article in British journal of pharmacology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 59 papers.

0numbers the graph read from it
0cells of the map it votes in
59citing papers in PubMed
7.2field-weighted citation impact, top 2% 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

59 citing papers in PubMed, 101 citations in OpenAlex.

  1. Trial
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  6. Metabolic changes during cardiac regeneration in the axolotl.Developmental dynamics : an official publication of the American Association of Anatomists · 2026
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  15. Interplay between ALK2Cell death discovery · 2025
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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

12 authors at 2 institutions in 2 countries.

Jing YanLaboratory of Heart Center and Department of Cardiology, Heart Center, Zhujiang Hospital, Southern Medical University, Guangzhou, China.
Jian-Yun YanLaboratory of Heart Center and Department of Cardiology, Heart Center, Zhujiang Hospital, Southern Medical University, Guangzhou, China.ORCID 0000-0002-6962-1169
Yu-Xi WangLaboratory of Heart Center and Department of Cardiology, Heart Center, Zhujiang Hospital, Southern Medical University, Guangzhou, China.
Yuan-Na LingLaboratory of Heart Center and Department of Cardiology, Heart Center, Zhujiang Hospital, Southern Medical University, Guangzhou, China.
Xu-Dong SongLaboratory of Heart Center and Department of Cardiology, Heart Center, Zhujiang Hospital, Southern Medical University, Guangzhou, China.
Si-Yi WangLaboratory of Heart Center and Department of Cardiology, Heart Center, Zhujiang Hospital, Southern Medical University, Guangzhou, China.
Hai-Qiong LiuLaboratory of Heart Center and Department of Cardiology, Heart Center, Zhujiang Hospital, Southern Medical University, Guangzhou, China.
Qi-Cai LiuLaboratory of Heart Center and Department of Cardiology, Heart Center, Zhujiang Hospital, Southern Medical University, Guangzhou, China.
Ya ZhangDepartment of Cardiology, Xiangdong Affiliated Hospital of Hunan Normal University, Zhuzhou, Hunan, China.
Ping-Zhen YangLaboratory of Heart Center and Department of Cardiology, Heart Center, Zhujiang Hospital, Southern Medical University, Guangzhou, China.
Xian-Bao WangLaboratory of Heart Center and Department of Cardiology, Heart Center, Zhujiang Hospital, Southern Medical University, Guangzhou, China.
Ai-Hua ChenLaboratory of Heart Center and Department of Cardiology, Heart Center, Zhujiang Hospital, Southern Medical University, Guangzhou, China.ORCID 0000-0001-9395-7052
National Heart Foundation of Australia · AUHunan Normal University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

background and purposeSpermidine, a natural polyamine, is abundant in mammalian cells and is involved in cell growth, proliferation, and regeneration. Recently, oral spermidine supplements were cardioprotective in age-related cardiac dysfunction, through enhancing autophagic flux. However, the effect of spermidine on myocardial injury and cardiac dysfunction following myocardial infarction (MI) remains unknown. EXPERIMENTAL APPROACH: We determined the effects of spermidine in a model of MI, Sprague-Dawley rats with permanent ligation of the left anterior descending artery, and in cultured neonatal rat cardiomyocytes (NRCs) exposed to angiotensin II (Ang II). Cardiac function in vivo was assessed with echocardiography. In vivo and in vitro studies used histological and immunohistochemical techniques, along with western blots. KEY

resultsSpermidine improved cardiomyocyte viability and decreased cell necrosis in NRCs treated with angiotensin II. In rats post-MI, spermidine reduced infarct size, improved cardiac function, and attenuated myocardial hypertrophy. Spermidine also suppressed the oxidative damage and inflammatory cytokines induced by MI. Moreover, spermidine enhanced autophagic flux and decreased apoptosis both in vitro and in vivo. The protective effects of spermidine on cardiomyocyte apoptosis and cardiac dysfunction were abolished by the autophagy inhibitor chloroquine, indicating that spermidine exerted cardioprotective effects at least partly through promoting autophagic flux, by activating the AMPK/mTOR signalling pathway. CONCLUSIONS AND IMPLICATIONS: Our findings suggest that spermidine improved MI-induced cardiac dysfunction by promoting AMPK/mTOR-mediated autophagic flux.

Indexed as

AMP-Activated Protein KinasesAngiotensin IIAnimalsApoptosisCardiotonic AgentsCells, CulturedCell SurvivalDose-Response Relationship, DrugMaleMyocardial InfarctionMyocytes, CardiacRatsRats, Sprague-DawleySignal TransductionSpermidineStructure-Activity RelationshipAMP-Activated Protein KinasesAngiotensin IICardiotonic AgentsmTOR protein, ratSpermidineTOR Serine-Threonine Kinases

Identifiers

PMID31077347
PMCPMC6692641
OpenAlexW2943837510

What OpenQuestion holds

Textmetadata
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.