Evidence map›Paper›PMID 21816439›Full record

ArticleThe Journal of surgical research2012

Histone deacetylase inhibitor treatment attenuates MAP kinase pathway activation and pulmonary inflammation following hemorrhagic shock in a rodent model.

Ashley R Kochanek, Eugene Y Fukudome, Yongqing Li, Eleanor J Smith, Baoling Liu, George C Velmahos, Marc deMoya, David King, Hasan B Alam

Open access · greenAbstract read
In one paragraph

Article in The Journal of surgical research, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed, 1 pooled it
1.3field-weighted citation impact, top 21% 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

19 citing papers in PubMed, 1 synthesis or guideline pooled it, 35 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Review
  4. The Impact of Hemorrhagic Shock on Lung Ultrasound-Induced Pulmonary Capillary Hemorrhage.Journal of ultrasound in medicine : official journal of the American Institute of Ultrasound in Medicine · 2021
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  15. Regulatory T cell DNA methyltransferase inhibition accelerates resolution of lung inflammation.American journal of respiratory cell and molecular biology · 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.

Ashley R KochanekDepartment of Surgery, Division of Trauma, Emergency Surgery and Surgical Critical Care, Massachusetts General Hospital/Harvard Medical School, Boston, Massachusetts 02114, USA.
Eugene Y Fukudome
Yongqing Li
Eleanor J Smith
Baoling Liu
George C Velmahos
Marc deMoya
David King
Hasan B Alam
Harvard University · USMassachusetts General Hospital · US

Funding

Modulation of Acetylation in the Treatment of Lethal InjuriesR01GM084127 · NIGMS · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI ALAM, HASAN B · 2009 to 2019
$2.6M
NIGMS NIH HHS R01 GM084127
6 · The paper itself

Abstract

backgroundHemorrhagic shock activates cellular stress signals and can lead to systemic inflammatory response, organ injury, and death. We have previously shown that treatment with histone deacetylase inhibitors (HDACIs) significantly improves survival in lethal models (60% blood loss) of hemorrhage. The aim of the current study was to examine whether these protective effects were due to attenuation of mitogen activated protein kinase (MAPK) signaling pathways, which are known to promote inflammation and apoptosis.

methodsWistar-Kyoto rats (250-300 g) were subjected to 40% blood loss and randomized to treatment with: (1) HDACI valproic acid (VPA 300 mg/kg i.v.; volume = 0.75 mL/kg), or (2) vehicle control (0.75 mL/kg of 0.9% saline). Animals were sacrificed at 1, 4, and 20 h (n = 3-4/group/timepoint), and lung samples were analyzed by Western blotting for expression of active (phosphorylated) and inactive forms of c-Jun N-terminal Kinase (JNK) and p38 MAPK. Myeloperoxidase (MPO) activity was measured in lung tissue 20 h after hemorrhage as a marker of neutrophil infiltration. Normal animals (n = 3) served as shams.

resultsHemorrhaged animals demonstrated significant increases in phosphorylated p38 at 1 h, phosphorylated JNK at 4 h, and increased MPO activity at 20 h (P < 0.05 compared with sham). VPA treatment significantly (P < 0.05) attenuated all of these changes.

conclusionsHemorrhagic shock activates pro-inflammatory MAPK signaling pathways and promotes pulmonary neutrophil infiltration, affects that are significantly attenuated by VPA treatment. This may represent a key mechanism through which HDACIs decrease organ damage and promote survival in hemorrhagic shock.

Indexed as

AnimalsApoptosisDisease Models, AnimalHistone Deacetylase InhibitorsLungMaleMitogen-Activated Protein Kinase Kinasesp38 Mitogen-Activated Protein KinasesPeroxidasePhosphorylationPneumoniaProto-Oncogene Proteins c-junRatsRats, Inbred WKYShock, HemorrhagicSignal TransductionHistone Deacetylase InhibitorsMitogen-Activated Protein Kinase Kinasesp38 Mitogen-Activated Protein KinasesPeroxidaseProto-Oncogene Proteins c-junValproic Acid

Identifiers

PMID21816439
PMCPMC3210894
OpenAlexW1969397460

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.