Evidence map›Paper›PMID 23456569›Full record

ArticleJournal of cardiovascular translational research2013

Beneficial cardiac effects of caloric restriction are lost with age in a murine model of obesity.

Majd AlGhatrif, Vabren L Watts, Xiaolin Niu, Marc Halushka, Karen L Miller, Konrad Vandegaer, Djahida Bedja, Karen Fox-Talbot, Alicja Bielawska, Kathleen L Gabrielson and 1 more

Abstract readComparative Study
PubMed Publisher
In one paragraph

Article in Journal of cardiovascular translational research, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
0.7field-weighted citation impact, top 28% 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

6 citing papers in PubMed, 15 citations in OpenAlex.

  1. 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

11 authors at 4 institutions in 2 countries.

Majd AlGhatrifDivision of Cardiology, Department of Medicine, Johns Hopkins University School of Medicine, 600 North Wolfe Street, Carnegie 568, Baltimore, MD 21287, USA.
Vabren L Watts
Xiaolin Niu
Marc Halushka
Karen L Miller
Konrad Vandegaer
Djahida Bedja
Karen Fox-Talbot
Alicja Bielawska
Kathleen L Gabrielson
Lili A Barouch
Johns Hopkins Medicine · USJohns Hopkins University · USMedical University of South Carolina · USTang Du Hospital · CN

Funding

PATHOPHYSIOLOGY OF MYOCARDIAL DISEASEST32HL007227 · NHLBI · JOHNS HOPKINS UNIVERSITY · PI Chulan Kwon, WENDY S POST · 1985 to 2026
$21.2M
NHLBI NIH HHS 5T32HL007227
6 · The paper itself

Abstract

Obesity is associated with increased diastolic stiffness and myocardial steatosis and dysfunction. The impact of aging on the protective effects of caloric restriction (CR) is not clear. We studied 2-month (younger) and 6-7-month (older)-old ob/ob mice and age-matched C57BL/6J controls (WT). Ob/ob mice were assigned to diet ad libitum or CR for 4 weeks. We performed echocardiograms, myocardial triglyceride assays, Oil Red O staining, and measured free fatty acids, superoxide, NOS activity, ceramide levels, and Western blots. In younger mice, CR restored diastolic function, reversed myocardial steatosis, and upregulated Akt phosphorylation. None of these changes was observed in the older mice; however, CR decreased oxidative stress and normalized NOS activity in these animals. Interestingly, myocardial steatosis was not associated with increased ceramide, but CR altered the composition of ceramides. In this model of obesity, aging attenuates the benefits of CR on myocardial structure and function.

Indexed as

Caloric RestrictionAge FactorsAnimalsCeramidesDiastoleDisease Models, AnimalFatty Acids, NonesterifiedMiceMice, Inbred C57BLMyocardiumNitric Oxide SynthaseObesityOxidative StressPhosphorylationProto-Oncogene Proteins c-aktSuperoxide DismutaseCeramidesFatty Acids, NonesterifiedNitric Oxide SynthaseProto-Oncogene Proteins c-aktSuperoxide DismutaseTriglycerides

Identifiers

PMID23456569
OpenAlexW2075441641

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.