Evidence map›Paper›PMID 33693448›Full record

ArticleJCSM rapid communications

Cancer-induced Cardiac Atrophy Adversely Affects Myocardial Redox State and Mitochondrial Oxidative Characteristics.

David E Lee, Jacob L Brown, Megan E Rosa-Caldwell, Richard A Perry, Lemuel A Brown, Wesley S Haynie, Tyrone A Washington, Michael P Wiggs, Narasimhan Rajaram, Nicholas P Greene

Open access · goldAbstract read
In one paragraph

Article in JCSM rapid communications. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
1.3field-weighted citation impact, top 20% 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

19 citing papers in PubMed, 22 citations in OpenAlex.

  1. Article
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  7. PGC-1α overexpression is not sufficient to mitigate cancer cachexia in either male or female mice.Applied physiology, nutrition, and metabolism = Physiologie appliquee, nutrition et metabolisme · 2022
    Article
  8. Review
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  12. Sex Differences in Cardiac Pathology of SARS-CoV2 Infected andFrontiers in cardiovascular medicine · 2022
    Article
  13. Article
  14. Article
  15. Nutrition challenges of cancer cachexia.JPEN. Journal of parenteral and enteral nutrition · 2021
    Review
  16. Article
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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

10 authors at 1 institution in 1 country.

David E LeeCachexia Research Laboratory, Department of Health, Human Performance and Recreation, University of Arkansas, Fayetteville, Arkansas, USA.
Jacob L BrownCachexia Research Laboratory, Department of Health, Human Performance and Recreation, University of Arkansas, Fayetteville, Arkansas, USA.
Megan E Rosa-CaldwellCachexia Research Laboratory, Department of Health, Human Performance and Recreation, University of Arkansas, Fayetteville, Arkansas, USA.
Richard A PerryExercise Muscle Biology Laboratory, Department of Health, Human Performance and Recreation, University of Arkansas, Fayetteville, Arkansas, USA.
Lemuel A BrownExercise Muscle Biology Laboratory, Department of Health, Human Performance and Recreation, University of Arkansas, Fayetteville, Arkansas, USA.
Wesley S HaynieExercise Muscle Biology Laboratory, Department of Health, Human Performance and Recreation, University of Arkansas, Fayetteville, Arkansas, USA.
Tyrone A WashingtonExercise Muscle Biology Laboratory, Department of Health, Human Performance and Recreation, University of Arkansas, Fayetteville, Arkansas, USA.
Michael P WiggsDepartment of Health and Kinesiology, University of Texas at Tyler, Tyler, Texas, USA.
Narasimhan RajaramLaboratory for Functional Optical Imaging and Spectroscopy, Department of Biomedical Engineering, University of Arkansas, Fayetteville, Arkansas, USA.
Nicholas P GreeneCachexia Research Laboratory, Department of Health, Human Performance and Recreation, University of Arkansas, Fayetteville, Arkansas, USA.
University of Arkansas at Fayetteville · US

Funding

Mitochondrial Degeneration – the Root of Skeletal Muscle AtrophyR15AR069913 · NIAMS · UNIVERSITY OF ARKANSAS AT FAYETTEVILLE · PI GREENE, NICHOLAS PERRY · 2017 to 2017
$413k
NIAMS NIH HHS R15 AR069913
6 · The paper itself

Abstract

Cachexia presents in 80% of advanced cancer patients; however, cardiac atrophy in cachectic patients receives little attention. This cardiomyopathy contributes to increased occurrence of adverse cardiac events compared to age-matched population norms. Research on cardiac atrophy has focused on remodeling; however, alterations in metabolic properties may be a primary contributor. PURPOSE: Determine how cancer-induced cardiac atrophy alters mitochondrial turnover, mitochondrial mRNA translation machinery and

methodsLewis lung carcinoma (LLC) tumors were implanted in C57BL6/J mice and grown for 28days to induce cardiac atrophy. Endogenous metabolic species, and markers of mitochondrial function were assessed. H9c2 cardiomyocytes were cultured in LLC-conditioned media with(out) the antioxidant MitoTempo. Cells were analyzed for ROS, oxidative capacity, and hypoxic resistance.

resultsLLC heart weights were ~10% lower than controls. LLC hearts demonstrated ~15% lower optical redox ratio (FAD/FAD+NADH) compared to PBS controls. When compared to PBS, LLC hearts showed ~50% greater COX-IV and VDAC, attributed to ~50% lower mitophagy markers. mt-mRNA translation machinery was elevated similarly to markers of mitochondrial content. mitochondrial DNA-encoded Cytb was ~30% lower in LLC hearts. ROS scavengers GPx-3 and GPx-7 were ~50% lower in LLC hearts. Treatment of cardiomyocytes with LLC-conditioned media resulted in higher ROS (25%), lower oxygen consumption rates (10% at basal, 75% at maximal), and greater susceptibility to hypoxia (~25%) -- which was reversed by MitoTempo.

conclusionThese results substantiate metabolic cardiotoxic effects attributable to tumor-associated factors and provide insight into interactions between mitochondrial mRNA translation, ROS mitigation, oxidative capacity and hypoxia resistance.

Indexed as

Cardiac cachexiacardiac wastingcardio-oncologymitochondrial translationoptical redox imaging

Identifiers

PMID33693448
PMCPMC7939061
OpenAlexW3048251007

What OpenQuestion holds

Textmetadata
LicenceTDM
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.