Evidence map›Paper›PMID 32346034›Full record

ArticleScientific reports2020

Caloric restriction reverses left ventricular hypertrophy through the regulation of cardiac iron homeostasis in impaired leptin signaling mice.

Hyeong Seok An, Jong Youl Lee, Eun Bee Choi, Eun Ae Jeong, Hyun Joo Shin, Kyung Eun Kim, Kyung-Ah Park, Zhen Jin, Jung Eun Lee, Jin Sin Koh and 3 more

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 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
2.6field-weighted citation impact, top 9% 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, 37 citations in OpenAlex.

  1. Article
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  10. Dietary regulation in health and disease.Signal transduction and targeted therapy · 2022
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  11. Article
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  16. Cardiac Aging: From Basic Research to Therapeutics.Oxidative medicine and cellular longevity · 2021
    Review
  17. Review
  18. Adipokines and Inflammation: Focus on Cardiovascular Diseases.International journal of molecular sciences · 2020
    Review
  19. Article
  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

13 authors at 3 institutions in 1 country.

Hyeong Seok AnDepartment of Anatomy and Convergence Medical Science, College of Medicine, Gyeongsang National University, Jinju, Gyeongnam, Republic of Korea.
Jong Youl LeeDepartment of Anatomy and Convergence Medical Science, College of Medicine, Gyeongsang National University, Jinju, Gyeongnam, Republic of Korea.
Eun Bee ChoiDepartment of Anatomy and Convergence Medical Science, College of Medicine, Gyeongsang National University, Jinju, Gyeongnam, Republic of Korea.
Eun Ae JeongDepartment of Anatomy and Convergence Medical Science, College of Medicine, Gyeongsang National University, Jinju, Gyeongnam, Republic of Korea.
Hyun Joo ShinDepartment of Anatomy and Convergence Medical Science, College of Medicine, Gyeongsang National University, Jinju, Gyeongnam, Republic of Korea.
Kyung Eun KimDepartment of Anatomy and Convergence Medical Science, College of Medicine, Gyeongsang National University, Jinju, Gyeongnam, Republic of Korea.
Kyung-Ah ParkDepartment of Anatomy and Convergence Medical Science, College of Medicine, Gyeongsang National University, Jinju, Gyeongnam, Republic of Korea.
Zhen JinDepartment of Anatomy and Convergence Medical Science, College of Medicine, Gyeongsang National University, Jinju, Gyeongnam, Republic of Korea.ORCID http://orcid.org/0000-0003-0540-5173
Jung Eun LeeDepartment of Thoracic and Cardiovascular Surgery, College of Medicine, Gyeongsang National University, Jinju, Gyeongnam, Republic of Korea.
Jin Sin KohDivision of Cardiology, Department of Internal Medicine, College of Medicine, Gyeongsang National University, Jinju, Gyeongnam, Republic of Korea.
Woori KwakC&K genomics, Songpa-gu, Seoul, Republic of Korea.
Won-Ho KimDivision of Cardiovascular Diseases, Center for Biomedical Sciences, National Institute of Health, Cheongju, Chungbuk, Republic of Korea.
Gu Seob RohDepartment of Anatomy and Convergence Medical Science, College of Medicine, Gyeongsang National University, Jinju, Gyeongnam, Republic of Korea. anaroh@gnu.ac.kr.ORCID http://orcid.org/0000-0003-4010-9628
Gyeongsang National University · KRGyeongnam National University of Science and Technology · KRKorea National Institute of Health · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Leptin-deficient and leptin-resistant mice manifest obesity, insulin resistance, and left ventricular hypertrophy (LVH); however, LVH's mechanisms are not fully understood. Cardiac iron dysregulation has been recently implicated in cardiomyopathy. Here we investigated the protective effects of caloric restriction on cardiac remodeling in impaired leptin signaling obese mice. RNA-seq analysis was performed to assess the differential gene expressions in the heart of wild-type and ob/ob mice. In particular, to investigate the roles of caloric restriction on iron homeostasis-related gene expressions, 10-week-old ob/ob and db/db mice were assigned to ad libitum or calorie-restricted diets for 12 weeks. Male ob/ob mice exhibited LVH, cardiac inflammation, and oxidative stress. Using RNA-seq analysis, we identified that an iron uptake-associated gene, transferrin receptor, was upregulated in obese ob/ob mice with LVH. Caloric restriction attenuated myocyte hypertrophy, cardiac inflammation, fibrosis, and oxidative stress in ob/ob and db/db mice. Furthermore, we found that caloric restriction reversed iron homeostasis-related lipocalin 2, divalent metal transporter 1, transferrin receptor, ferritin, ferroportin, and hepcidin expressions in the heart of ob/ob and db/db mice. These findings demonstrate that the cardioprotective effects of caloric restriction result from the cellular regulation of iron homeostasis, thereby decreasing oxidative stress, inflammation, and cardiac remodeling. We suggest that decreasing iron-mediated oxidative stress and inflammation offers new therapeutic approaches for obesity-induced cardiomyopathy.

Indexed as

Caloric RestrictionHypertrophy, Left VentricularOxidative StressSignal TransductionAnimalsInflammationIronLeptinMaleMiceMice, ObeseIronLeptin

Identifiers

PMID32346034
PMCPMC7188880
OpenAlexW3020028184

What OpenQuestion holds

Textmetadata
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.