Evidence map›Paper›PMID 32308093›Full record

ArticleJournal of the American Heart Association2020

Spermidine Suppresses Development of Experimental Abdominal Aortic Aneurysms.

Shuai Liu, Tingting Huang, Rui Liu, Huoying Cai, Baihong Pan, Mingmei Liao, Pu Yang, Lei Wang, Jianhua Huang, Yingbin Ge and 2 more

Open access · goldAbstract read
In one paragraph

Article in Journal of the American Heart Association, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed, 1 pooled it
4.7field-weighted citation impact, top 4% 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, 1 synthesis or guideline pooled it, 39 citations in OpenAlex.

  1. Pooled it
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  3. NFS1 Regulates IDH2 to Attenuate Abdominal Aortic Aneurysms via Interacting With SP2.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026
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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 3 institutions in 2 countries.

Shuai LiuDepartment of General & Vascular Surgery Xiangya Hospital Central South University Changsha Hunan China.
Tingting HuangDepartment of General & Vascular Surgery Xiangya Hospital Central South University Changsha Hunan China.
Rui LiuDepartment of General & Vascular Surgery Xiangya Hospital Central South University Changsha Hunan China.
Huoying CaiDepartment of General & Vascular Surgery Xiangya Hospital Central South University Changsha Hunan China.
Baihong PanDepartment of General & Vascular Surgery Xiangya Hospital Central South University Changsha Hunan China.
Mingmei LiaoDepartment of General & Vascular Surgery Xiangya Hospital Central South University Changsha Hunan China.
Pu YangDepartment of General & Vascular Surgery Xiangya Hospital Central South University Changsha Hunan China.
Lei WangDepartment of General & Vascular Surgery Xiangya Hospital Central South University Changsha Hunan China.
Jianhua HuangDepartment of General & Vascular Surgery Xiangya Hospital Central South University Changsha Hunan China.
Yingbin GeDepartment of Physiology Nanjing Medical University Nanjing Jiangsu China.
Baohui XuDepartment of Surgery Stanford University School of Medicine Stanford CA.
Wei WangDepartment of General & Vascular Surgery Xiangya Hospital Central South University Changsha Hunan China.
Central South University · CNNanjing Medical University · CNStanford University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background The protective effects of polyamines on cardiovascular disease have been demonstrated in many studies. However, the roles of spermidine, a natural polyamine, in abdominal aortic aneurysm (AAA) disease have not been studied. In this study, we investigated the influence and potential mechanisms of spermidine treatment on experimental AAA disease. Methods and Results Experimental AAAs were induced in 8- to 10-week-old male C57BL/6J mice by transient intra-aortic infusion of porcine pancreatic elastase. Spermidine was administered via drinking water at a concentration of 3 mmol/L. Spermidine treatment prevented experimental AAA formation with preservation of medial elastin and smooth muscle cells. In immunostaining, macrophages, T cells, neutrophils, and neovessels were significantly reduced in aorta of spermidine-treated, as compared with vehicle-treated elastase-infused mice. Additionally, flow cytometric analysis showed that spermidine treatment reduced aortic leukocyte infiltration and circulating inflammatory cells. Furthermore, we demonstrated that spermidine treatment promoted autophagy-related proteins in experimental AAAs using Western blot analysis, immunostaining, and transmission electron microscopic examination. Autophagic function was evaluated for human abdominal aneurysmal and nonaneurysmal adjacent aortae from AAA patients using Western blot analysis and immunohistochemistry. Dysregulated autophagic function, as evidenced by increased SQSTM1/p62 protein and phosphorylated mTOR, was found in aneurysmal, as compared with nonaneurysmal, aortic segments. Conclusions Our results suggest that spermidine supplementation limits experimental AAA formation associated with preserved aortic structural integrity, attenuated aortic inflammatory infiltration, reduced circulating inflammatory monocytes, and increased autophagy-related proteins. These findings suggest that spermidine may be a promising treatment for AAA disease.

Indexed as

AgedAnimalsAnti-Inflammatory AgentsAorta, AbdominalAortic Aneurysm, AbdominalAutophagyAutophagy-Related ProteinsChemotaxis, LeukocyteDilatation, PathologicDisease Models, AnimalFemaleHumansInflammation MediatorsMaleMice, Inbred C57BLMiddle AgedAnti-Inflammatory AgentsAutophagy-Related ProteinsInflammation MediatorsPancreatic ElastaseSpermidineabdominal aortic aneurysmautophagyexperimental animal modelsinflammationspermidine

Identifiers

PMID32308093
PMCPMC7428527
OpenAlexW3016353185

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.