Evidence map›Paper›PMID 19041937›Full record

ArticleFree radical biology & medicine2009

TNF-induced mitochondrial damage: a link between mitochondrial complex I activity and left ventricular dysfunction.

Nithya Mariappan, Carrie M Elks, Bruno Fink, Joseph Francis

Open access · greenAbstract read
In one paragraph

Article in Free radical biology & medicine, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 49 papers.

0numbers the graph read from it
0cells of the map it votes in
49citing papers in PubMed
9.6field-weighted citation impact, top 2% 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

49 citing papers in PubMed, 102 citations in OpenAlex.

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  15. FoxO1 Overexpression Ameliorates TNF-Stem cells international · 2019
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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

4 authors at 1 institution in 1 country.

Nithya MariappanDepartment of Comparative Biomedical Sciences, Louisiana State University School of Veterinary Medicine, Baton Rouge, LA 70803, USA.
Carrie M Elks
Bruno Fink
Joseph Francis
Louisiana State University · US

Funding

Cytokine-induced NeurohumoralExcitation in Heart FailureR01HL080544 · NHLBI · LOUISIANA STATE UNIV A&M COL BATON ROUGE · PI FRANCIS, JOSEPH · 2005 to 2009
$1.7M
NHLBI NIH HHS R01 HL080544NHLBI NIH HHS R01 HL080544-01
6 · The paper itself

Abstract

Mitochondrial damage is implicated in the progression of cardiac disease. Considerable evidence suggests that proinflammatory cytokines induce oxidative stress and contribute to cardiac dysfunction. This study was conducted to determine whether a TNF-induced increase in superoxide (O(2)(*)(-)) contributes to mitochondrial damage in the left ventricle (LV) by impairing respiratory complex I activity. We employed an electron paramagnetic resonance (EPR) method to measure O(2)(*)(-) and oxygen consumption in mitochondrial respiratory complexes, using an oxygen label. Adult male Sprague-Dawley rats were divided into four groups: control, TNF treatment (ip), TNF+ apocynin (APO; 200 micromol/kg bw, orally), and TNF+ Tempol (Temp; 300 micromol/kg bw, orally). TNF was injected daily for 5 days. Rats were sacrificed, LV tissue was collected, and mitochondria were isolated for EPR studies. Total LV ROS production was significantly higher in TNF animals than in controls; APO or Temp treatment ameliorated TNF-induced LV ROS production. Total mitochondrial ROS production was significantly higher in the TNF and TNF+ APO groups than in the control and TNF+ Temp groups. These findings suggest that TNF alters the cellular redox state, reduces the expression of four complex I subunits by increasing mitochondrial O(2)(*)(-) production and depleting ATP synthesis, and decreases oxygen consumption, thereby resulting in mitochondrial damage and leading to LV dysfunction.

Indexed as

AcetophenonesAnimalsCell RespirationCyclic N-OxidesCytotoxicity, ImmunologicEchocardiographyElectron Spin Resonance SpectroscopyElectron Transport Complex IFree Radical ScavengersMaleMitochondria, HeartMyocardiumNADPH OxidasesOxidative StressOxygen ConsumptionRatsAcetophenonesacetovanilloneCyclic N-OxidesElectron Transport Complex IFree Radical ScavengersNADPH OxidasesSpin LabelsSuperoxidestempolTumor Necrosis Factor-alpha

Identifiers

PMID19041937
PMCPMC2735225
OpenAlexW1980611990

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.