Evidence map›Paper›PMID 24139490›Full record

ArticleSurgery2013

The protective role of MnTBAP in oxidant-mediated injury and inflammation in a rat model of lung contusion.

Madathilparambil V Suresh, Bi Yu, Satyan Lakshminrusimha, David Machado-Aranda, Nicholas Talarico, Lixia Zeng, Bruce A Davidson, Subramaniam Pennathur, Krishnan Raghavendran

Open access · greenAbstract read
In one paragraph

Article in Surgery, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
2.3field-weighted citation impact, top 12% 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

20 citing papers in PubMed, 27 citations in OpenAlex.

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  17. Dietary Fatty Acids and Temperature Modulate Mitochondrial Function and Longevity in Drosophila.The journals of gerontology. Series A, Biological sciences and medical sciences · 2015
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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

9 authors at 2 institutions in 1 country.

Madathilparambil V SureshDepartment of Surgery, University of Michigan.
Bi Yu
Satyan Lakshminrusimha
David Machado-Aranda
Nicholas Talarico
Lixia Zeng
Bruce A Davidson
Subramaniam Pennathur
Krishnan Raghavendran
University of Michigan–Ann Arbor · USUniversity at Buffalo, State University of New York · US

Funding

Pilot and Feasibility (P and F) ProgramP30DK089503 · NIDDK · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI Joyce Lee · 2010 to 2026
$20.3M
Mass Spectrometry-Based Biomarker DiscoveryR01HL094230 · NHLBI · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI PENNATHUR, SUBRAMANIAM, THANNICKAL, VICTOR J. · 2009 to 2012
$1.5M
Mechanisms of MCP-1 in lung contusion with and without gastric aspirationR01HL102013 · NHLBI · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI RAGHAVENDRAN, KRISHNAN · 2010 to 2013
$1.5M
NHLBI NIH HHS HL094230NHLBI NIH HHS HL-102013NHLBI NIH HHS R01 HL094230NHLBI NIH HHS R0-1 HL-102013NHLBI NIH HHS R01 HL102013NIDDK NIH HHS P30 DK089503
6 · The paper itself

Abstract

backgroundLung contusion (LC) is a unique direct and focal insult that is considered a major risk factor for the initiation of acute lung injury and acute respiratory distress syndrome. We have shown recently that consumption of nitric oxide (due to excess superoxide) resulting in peroxynitrite formation leads to decreased vascular reactivity after LC. In this study, we set out to determine whether the superoxide scavenger Mn (III) tetrakis (4-benzoic acid) porphyrin chloride (MnTBAP) plays a protective role in alleviating acute inflammatory response and injury in LC.

methodsNonlethal, closed-chest, bilateral LC was induced in a rodent model. Administration of the superoxide dismutase mimetic MnTBAP concurrently in LC in rats was performed, and bronchoalveolar lavage (BAL) and lung samples were analyzed for degree of injury and inflammation at 5 and 24 h after the insult. The extent of injury was assessed by the measurement of cells and albumin with cytokine levels in the BAL and lungs. Lung samples were subjected to H&E and superoxide staining with dihydro-ethidium. Protein-bound dityrosine and nitrotyrosine levels were quantified in lung tissue by tandem mass spectrometry.

resultsThe degrees of lung injury after LC as determined by BAL albumin levels were significantly decreased in the MnTBAP-administered rats at all the time points when compared to the corresponding controls. The release of proinflammatory cytokines and BAL neutrophils was significantly less in the rats administered MnTBAP after LC. Administration of MnTBAP decreased tissue damage and decreased necrosis and neutrophil-rich exudate at the 24-h time point. Staining for superoxide anions showed significantly greater intensity in the lung samples from the LC group compared to the LC+ MnTBAP group. High-performance liquid chromatography/tandem mass spectrometry revealed that MnTBAP treatment significantly attenuated dityrosine and nitrotyrosine levels, consistent with decreased oxidant injury.

conclusionSuperoxide dismutase mimetic-MnTBAP reduced permeability and oxidative injury in LC and may have a therapeutic role in diminishing inflammation in LC.

Indexed as

Acute Lung InjuryAnimalsContusionsDisease Models, AnimalDrug Evaluation, PreclinicalFree Radical ScavengersMaleMetalloporphyrinsOxidantsRatsRats, Long-EvansSuperoxidesFree Radical Scavengersmanganese(III)-tetrakis(4-benzoic acid)porphyrinMetalloporphyrinsOxidantsSuperoxides

Identifiers

PMID24139490
PMCPMC3855248
OpenAlexW2046348093

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.