Evidence map›Paper›PMID 19224349›Full record

ArticleJournal of bioenergetics and biomembranes2009

Elucidation of the effects of lipoperoxidation on the mitochondrial electron transport chain using yeast mitochondria with manipulated fatty acid content.

Christian Cortés-Rojo, Elizabeth Calderón-Cortés, Mónica Clemente-Guerrero, Mirella Estrada-Villagómez, Salvador Manzo-Avalos, Ricardo Mejía-Zepeda, Istvan Boldogh, Alfredo Saavedra-Molina

Open access · greenAbstract read
In one paragraph

Article in Journal of bioenergetics and biomembranes, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
1.5field-weighted citation impact, top 19% 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

25 citing papers in PubMed, 44 citations in OpenAlex.

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  5. An Ethyl Acetate Extract ofAntioxidants (Basel, Switzerland) · 2023
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  12. Electron transport chain in a thermotolerant yeast.Journal of bioenergetics and biomembranes · 2017
    Article
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  14. Article
  15. 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

8 authors at 2 institutions in 2 countries.

Christian Cortés-RojoInstituto de Investigaciones Químico-Biológicas, Universidad Michoacana de San Nicolás de Hidalgo, Edificio B-3. CU, Morelia, Mich 58030, México.
Elizabeth Calderón-Cortés
Mónica Clemente-Guerrero
Mirella Estrada-Villagómez
Salvador Manzo-Avalos
Ricardo Mejía-Zepeda
Istvan Boldogh
Alfredo Saavedra-Molina
Universidad Michoacana de San Nicolás de Hidalgo · MXThe University of Texas Medical Branch at Galveston · US

Funding

Virus, Tissue Culture and ImmunoassayP01AI062885 · NIAID · UNIVERSITY OF TEXAS MEDICAL BR GALVESTON · PI GAROFALO, ROBERTO P · 2005 to 2022
$23.9M
Synthetic Organic Chemistry CoreP30ES006676 · NIEHS · UNIVERSITY OF TEXAS MEDICAL BR GALVESTON · PI ELFERINK, CORNELIS JOHAN · 1995 to 2017
$21.7M
OXIDATIVE STRESS,REPAIR OF OXIDIZED GUANINES IN AGED CELLSP01AG021830 · NIA · UNIVERSITY OF TEXAS MEDICAL BR GALVESTON · PI PAPACONSTANTINOU, JOHN NMN · 2004 to 2010
$6.4M
NIAID NIH HHS P01 AI062885NIA NIH HHS AG 021830NIA NIH HHS P01 AG021830NIEHS NIH HHS P30 ES006676PHS HHS EOS 006677
6 · The paper itself

Abstract

Lipoperoxidative damage to the respiratory chain proteins may account for disruption in mitochondrial electron transport chain (ETC) function and could lead to an augment in the production of reactive oxygen species (ROS). To test this hypothesis, we investigated the effects of lipoperoxidation on ETC function and cytochromes spectra of Saccharomyces cerevisiae mitochondria. We compared the effects of Fe(2+) treatment on mitochondria isolated from yeast with native (lipoperoxidation-resistant) and modified (lipoperoxidation-sensitive) fatty acid composition. Augmented sensitivity to oxidative stress was observed in the complex III-complex IV segment of the ETC. Lipoperoxidation did not alter the cytochromes content. Under lipoperoxidative conditions, cytochrome c reduction by succinate was almost totally eliminated by superoxide dismutase and stigmatellin. Our results suggest that lipoperoxidation impairs electron transfer mainly at cytochrome b in complex III, which leads to increased resistance to antimycin A and ROS generation due to an electron leak at the level of the Q(O) site of complex III.

Indexed as

Electron Transport Chain Complex ProteinsFatty AcidsIronLipid PeroxidationMitochondriaOxidative StressReactive Oxygen SpeciesSaccharomyces cerevisiaeElectron Transport Chain Complex ProteinsFatty AcidsIronReactive Oxygen Species

Identifiers

PMID19224349
PMCPMC2922399
OpenAlexW2069131490

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.