Evidence map›Paper›PMID 24951621›Full record

ArticleThe Journal of physiology2014

Mitochondrial reactive oxygen species production and respiratory complex activity in rats with pressure overload-induced heart failure.

Michael Schwarzer, Moritz Osterholt, Anne Lunkenbein, Andrea Schrepper, Paulo Amorim, Torsten Doenst

Open access · greenAbstract read
In one paragraph

Article in The Journal of physiology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers.

0numbers the graph read from it
0cells of the map it votes in
39citing papers in PubMed
4.0field-weighted citation impact, top 6% 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

39 citing papers in PubMed, 68 citations in OpenAlex.

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  15. CaOxidative medicine and cellular longevity · 2022
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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

6 authors at 3 institutions in 1 country.

Michael SchwarzerDepartment of Cardiothoracic Surgery, Jena University Hospital Friedrich Schiller University of Jena, Jena, Germany.
Moritz OsterholtDepartment of Cardiothoracic Surgery, Jena University Hospital Friedrich Schiller University of Jena, Jena, Germany.
Anne LunkenbeinDepartment of Cardiac Surgery, University of Leipzig Heart Center, Leipzig, Germany.
Andrea SchrepperDepartment of Cardiothoracic Surgery, Jena University Hospital Friedrich Schiller University of Jena, Jena, Germany.
Paulo AmorimDepartment of Cardiothoracic Surgery, Jena University Hospital Friedrich Schiller University of Jena, Jena, Germany.
Torsten DoenstDepartment of Cardiothoracic Surgery, Jena University Hospital Friedrich Schiller University of Jena, Jena, Germany doenst@med.uni-jena.de.
Friedrich Schiller University Jena · DEJena University Hospital · DELeipzig University · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

We investigated the impact of cardiac reactive oxygen species (ROS) during the development of pressure overload-induced heart failure. We used our previously described rat model where transverse aortic constriction (TAC) induces compensated hypertrophy after 2 weeks, heart failure with preserved ejection fraction at 6 and 10 weeks, and heart failure with systolic dysfunction after 20 weeks. We measured mitochondrial ROS production rates, ROS damage and assessed the therapeutic potential of in vivo antioxidant therapies. In compensated hypertrophy (2 weeks of TAC) ROS production rates were normal at both mitochondrial ROS production sites (complexes I and III). Complex I ROS production rates increased with the appearance of diastolic dysfunction (6 weeks of TAC) and remained high thereafter. Surprisingly, maximal ROS production at complex III peaked at 6 weeks of pressure overload. Mitochondrial respiratory capacity (state 3 respiration) was elevated 2 and 6 weeks after TAC, decreased after this point and was significantly impaired at 20 weeks, when contractile function was also impaired and ROS damage was found with increased hydroxynonenal. Treatment with the ROS scavenger α-phenyl-N-tert-butyl nitrone or the uncoupling agent dinitrophenol significantly reduced ROS production rates at 6 weeks. Despite the decline in ROS production capacity, no differences in contractile function between treated and untreated animals were observed. Increased ROS production occurs early in the development of heart failure with a peak at the onset of diastolic dysfunction. However, ROS production may not be related to the onset of contractile dysfunction.

Indexed as

2,4-DinitrophenolAnimalsCyclic N-OxidesElectron Transport Complex IElectron Transport Complex IIIHeart FailureMaleMitochondria, HeartMyocardial ContractionRatsRats, Sprague-DawleyReactive Oxygen SpeciesUncoupling Agents2,4-DinitrophenolCyclic N-OxidesElectron Transport Complex IElectron Transport Complex IIIphenyl-N-tert-butylnitroneReactive Oxygen SpeciesUncoupling Agents

Identifiers

PMID24951621
PMCPMC4192702
OpenAlexW1860457075

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.