Evidence map›Paper›PMID 25599491›Full record

ArticleCritical care medicine2015

Inhibition of the mitochondrial fission protein dynamin-related protein 1 improves survival in a murine cardiac arrest model.

Willard W Sharp, David G Beiser, Yong Hu Fang, Mei Han, Lin Piao, Justin Varughese, Stephen L Archer

Open access · greenAbstract read
In one paragraph

Article in Critical care medicine, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 51 papers.

0numbers the graph read from it
0cells of the map it votes in
51citing papers in PubMed
9.4field-weighted citation impact, top 1% 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

51 citing papers in PubMed, 82 citations in OpenAlex.

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  8. Dynamin-related protein 1 is a critical regulator of mitochondrial calcium homeostasis during myocardial ischemia/reperfusion injury.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2024
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  20. SENP3 Promotes an Mff-Primed Bcl-xFrontiers in cell and developmental biology · 2021
    Article
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

7 authors at 1 institution in 1 country.

Willard W Sharp1Section of Emergency Medicine, Department of Medicine, University of Chicago, Chicago, IL. 2Department of Medicine, Queen's University at Kingston, ON, Canada.
David G Beiser
Yong Hu Fang
Mei Han
Lin Piao
Justin Varughese
Stephen L Archer
University of Chicago · US

Funding

Re-Engineering Translational Research at the University of ChicagoUL1TR000430 · NCATS · UNIVERSITY OF CHICAGO · PI SOLWAY, JULIAN · 2012 to 2016
$20.2M
O2 sensing in the human and rabbit ductus arteriosus.R01HL071115 · NHLBI · UNIVERSITY OF CHICAGO · PI ARCHER, STEPHEN L · 2004 to 2015
$3.1M
The Role of DRP-1 and Mitochondrial Fission in Pulmonary Arterial HypertensionR01HL113003 · NHLBI · QUEEN'S UNIVERSITY AT KINGSTON · PI ARCHER, STEPHEN L · 2013 to 2016
$1.1M
Impaired mitochondrial fusion in pulmonary arterial hypertensionRC1HL099462 · NHLBI · UNIVERSITY OF CHICAGO · PI ARCHER, STEPHEN L · 2009 to 2010
$1.0M
Hypothermia in Cardiac Arrest: Akt Preservation of Mitochondrial IntegrityK08HL103901 · NHLBI · UNIVERSITY OF CHICAGO · PI SHARP, WILLARD WILLIAM · 2011 to 2015
$633k
Hypothermia for Cardiac Arrest: Optimizing Akt-Nitric Oxide Synthase SignalingK08HL091184 · NHLBI · UNIVERSITY OF CHICAGO · PI BEISER, DAVID GUSTAV · 2008 to 2012
$621k
Mitochondrial dynamics in human pulmonary hypertension: a new therapeutic targetR03HL110826 · NHLBI · UNIVERSITY OF CHICAGO · PI SHARP, WILLARD WILLIAM · 2012 to 2013
$154k
NCATS NIH HHS UL1 TR000430NHLBI NIH HHS 1RC1HL099462NHLBI NIH HHS K08 HL091184NHLBI NIH HHS K08HL091184NHLBI NIH HHS K08 HL103901NHLBI NIH HHS K08 HL103901-01A1NHLBI NIH HHS NIH-RO1-HL071115NHLBI NIH HHS R01 HL071115NHLBI NIH HHS R01 HL113003NHLBI NIH HHS R03 HL110826NHLBI NIH HHS R03 HL110826-01A1
6 · The paper itself

Abstract

objectivesSurvival following sudden cardiac arrest is poor despite advances in cardiopulmonary resuscitation and the use of therapeutic hypothermia. Dynamin-related protein 1, a regulator of mitochondrial fission, is an important determinant of reactive oxygen species generation, myocardial necrosis, and left ventricular function following ischemia/reperfusion injury, but its role in cardiac arrest is unknown. We hypothesized that dynamin-related protein 1 inhibition would improve survival, cardiac hemodynamics, and mitochondrial function in an in vivo model of cardiac arrest.

designLaboratory investigation.

settingUniversity laboratory.

interventionsAnesthetized and ventilated adult female C57BL/6 wild-type mice underwent an 8-minute KCl-induced cardiac arrest followed by 90 seconds of cardiopulmonary resuscitation. Mice were then blindly randomized to a single IV injection of Mdivi-1 (0.24 mg/kg), a small molecule dynamin-related protein 1 inhibitor or vehicle (dimethyl sulfoxide). MEASUREMENTS AND MAIN

resultsFollowing resuscitation from cardiac arrest, mitochondrial fission was evidenced by dynamin-related protein 1 translocation to the mitochondrial membrane and a decrease in mitochondrial size. Mitochondrial fission was associated with increased lactate and evidence of oxidative damage. Mdivi-1 administration during cardiopulmonary resuscitation inhibited dynamin-related protein 1 activation, preserved mitochondrial morphology, and decreased oxidative damage. Mdivi-1 also reduced the time to return of spontaneous circulation (116 ± 4 vs 143 ± 7 s; p < 0.001) during cardiopulmonary resuscitation and enhanced myocardial performance post-return of spontaneous circulation. These improvements were associated with significant increases in survival (65% vs 33%) and improved neurological scores up to 72 hours post cardiac arrest.

conclusionsPost-cardiac arrest inhibition of dynamin-related protein 1 improves time to return of spontaneous circulation and myocardial hemodynamics, resulting in improved survival and neurological outcomes in a murine model of cardiac arrest. Pharmacological targeting of mitochondrial fission may be a promising therapy for cardiac arrest.

Indexed as

Aconitate HydrataseAnimalsDisease Models, AnimalDynaminsFemaleHeart ArrestImmunoblottingMiceMice, Inbred C57BLMicroscopy, Electron, TransmissionMitochondrial DynamicsQuinazolinonesRandom Allocation3-(2,4-dichloro-5-methoxyphenyl)-2-sulfanyl-4(3H)-quinazolinoneAconitate HydrataseDynaminsQuinazolinones

Identifiers

PMID25599491
PMCPMC4342059
OpenAlexW2296533670

What OpenQuestion holds

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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.