Evidence map›Paper›PMID 18414235›Full record

ArticleShock (Augusta, Ga.)2008

Exogenous cytochrome C restores myocardial cytochrome oxidase activity into the late phase of sepsis.

David A Piel, Clifford S Deutschman, Richard J Levy

Abstract read
In one paragraph

Article in Shock (Augusta, Ga.), 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
1.9field-weighted citation impact, top 15% 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

21 citing papers in PubMed, 52 citations in OpenAlex.

  1. Review
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  13. Review
  14. MITOCHONDRIAL FUNCTION IN SEPSIS.Shock (Augusta, Ga.) · 2016
    Review
  15. 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

3 authors at 2 institutions in 1 country.

David A PielDepartment of Anesthesiology and Critical Care Medicine, The Children's Hospital of Philadelphia, and Department of Anesthesia and Critical Care, School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA.
Clifford S Deutschman
Richard J Levy
University of Pennsylvania · USWestchester Medical Center · US

Funding

IL-6 AND HEPATIC DYSFUNCTION IN SEPSISR01GM059930 · NIGMS · UNIVERSITY OF PENNSYLVANIA · PI DEUTSCHMAN, CLIFFORD SCOTT · 2000 to 2009
$2.5M
Cytochrome oxidase inhibition in septic heartK08GM074117 · NIGMS · NEW YORK MEDICAL COLLEGE · PI LEVY, RICHARD J · 2005 to 2009
$635k
NIGMS NIH HHS 1K08GM074117NIGMS NIH HHS 5R01GM059930NIGMS NIH HHS K08 GM074117NIGMS NIH HHS R01 GM059930
6 · The paper itself

Abstract

Mitochondrial dysfunction is thought to play a role in the pathogenesis of a variety of disease states, including sepsis. An acquired defect in oxidative phosphorylation potentially causes sepsis-induced organ dysfunction. Cytochrome oxidase (CcOX), the terminal oxidase of the respiratory chain, is competitively inhibited early in sepsis and progresses, becoming noncompetitive during the late phase. We have previously demonstrated that exogenous cytochrome c can overcome myocardial CcOX competitive inhibition and improve cardiac function during murine sepsis at the 24-h point. Here, we evaluate the effect of exogenous cytochrome c on CcOX activity and survival in mice at the later time points. Exogenous cytochrome c (800 microg) or saline was intravenously injected 24 h after cecal ligation and puncture (CLP) or sham operation. Steady-state mitochondrial cytochrome c levels and heme c content increased significantly 48 h post-CLP and remained elevated at 72 h in cytochrome c-injected mice compared with saline injection. Cecal ligation and puncture inhibited CcOX at 48 h in saline-injected mice. However, cytochrome c injection abrogated this inhibition and restored CcOX kinetic activity to sham values at 48 h. Survival after CLP to 96 h after cytochrome c injection approached 50% compared with only 15% after saline injection. Thus, a single injection of exogenous cytochrome c 24 h post-CLP repletes mitochondrial substrate levels for up to 72 h, restores myocardial COX activity, and significantly improves survival.

Indexed as

AnimalsCytochromes cElectron Transport Complex IVHeartHemeKineticsMaleMiceMice, Inbred C57BLMitochondriaMyocardiumOxidative StressPhosphorylationSepsisCytochromes cElectron Transport Complex IVHemeheme C

Identifiers

PMID18414235
PMCPMC3970215
OpenAlexW1983575817

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.