Evidence map›Paper›PMID 22589381›Full record

ArticleCirculation2012

Lack of microsomal prostaglandin E(2) synthase-1 in bone marrow-derived myeloid cells impairs left ventricular function and increases mortality after acute myocardial infarction.

Norbert Degousee, Jeremy Simpson, Shafie Fazel, Klaus Scholich, Denis Angoulvant, Carlo Angioni, Helmut Schmidt, Marina Korotkova, Eva Stefanski, Xing-Hua Wang and 11 more

Open access · bronzeAbstract read
PubMed Publisher
In one paragraph

Article in Circulation, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing 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

12 citing papers in PubMed, 27 citations in OpenAlex.

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  12. Cardiotoxicity and Cardioprotection by Artesunate in Larval Zebrafish.Dose-response : a publication of International Hormesis Society
    Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

21 authors at 2 institutions in 2 countries.

Norbert DegouseeDivision of Vascular Surgery, Toronto General Hospital, University Health Network, Toronto, Canada.
Jeremy Simpson
Shafie Fazel
Klaus Scholich
Denis Angoulvant
Carlo Angioni
Helmut Schmidt
Marina Korotkova
Eva Stefanski
Xing-Hua Wang
Thomas F Lindsay
Efrat Ofek
Sandra Pierre
Jagdish Butany
Per-Johan Jakobsson
Armand Keating
Ren-Ke Li
Matthias Nahrendorf
Gerd Geisslinger
Peter H Backx
Barry B Rubin
University of Toronto · CAKarolinska University Hospital · SE

Funding

Canadian Institutes of Health Research 14795Canadian Institutes of Health Research 53297
6 · The paper itself

Abstract

backgroundMicrosomal prostaglandin E(2) synthase-1 (mPGES-1), encoded by the Ptges gene, catalyzes prostaglandin E(2) biosynthesis and is expressed by leukocytes, cardiac myocytes, and cardiac fibroblasts. Ptges(-/-) mice develop more left ventricle (LV) dilation, worse LV contractile function, and higher LV end-diastolic pressure than Ptges(+/+) mice after myocardial infarction. In this study, we define the role of mPGES-1 in bone marrow-derived leukocytes in the recovery of LV function after coronary ligation. METHODS AND

resultsCardiac structure and function in Ptges(+/+) mice with Ptges(+/+) bone marrow (BM(+/+)) and Ptges(+/+) mice with Ptges(-/-) BM (BM(-/-)) were assessed by morphometric analysis, echocardiography, and invasive hemodynamics before and 7 and 28 days after myocardial infarction. Prostaglandin levels and prostaglandin biosynthetic enzyme gene expression were measured by liquid chromatography-tandem mass spectrometry and real-time polymerase chain reaction, immunoblotting, immunohistochemistry, and immunofluorescence microscopy, respectively. After myocardial infarction, BM(-/-) mice had more LV dilation, worse LV systolic and diastolic function, higher LV end-diastolic pressure, more cardiomyocyte hypertrophy, and higher mortality but similar infarct size and pulmonary edema compared with BM(+/+) mice. BM(-/-) mice also had higher levels of COX-1 protein and more leukocytes in the infarct, but not the viable LV, than BM(+/+) mice. Levels of prostaglandin E(2) were higher in the infarct and viable myocardium of BM(-/-) mice than in BM(+/+) mice.

conclusionsLack of mPGES-1 in bone marrow-derived leukocytes negatively regulates COX-1 expression, prostaglandin E(2) biosynthesis, and inflammation in the infarct and leads to impaired LV function, adverse LV remodeling, and decreased survival after acute myocardial infarction.

Indexed as

AnimalsBlood PressureBone Marrow CellsCyclooxygenase 1Cyclooxygenase 2DiastoleDisease Models, AnimalIntramolecular OxidoreductasesLeukocytesMembrane ProteinsMiceMice, KnockoutMicrosomesMyeloid CellsMyocardial InfarctionMyocarditisCyclooxygenase 1Cyclooxygenase 2Intramolecular OxidoreductasesMembrane ProteinsProstaglandin-E SynthasesPtges protein, mousePtgs1 protein, mousePtgs2 protein, mouse

Identifiers

PMID22589381
OpenAlexW2021909367

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.