Evidence map›Paper›PMID 27199757›Full record

ArticleFrontiers in pharmacology2016

Systemic Dosing of Thymosin Beta 4 before and after Ischemia Does Not Attenuate Global Myocardial Ischemia-Reperfusion Injury in Pigs.

Christoffer K-J Stark, Miikka Tarkia, Rasmus Kentala, Markus Malmberg, Tommi Vähäsilta, Matti Savo, Ville-Veikko Hynninen, Mikko Helenius, Saku Ruohonen, Juho Jalkanen and 6 more

Open access · goldAbstract read
In one paragraph

Article in Frontiers in pharmacology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
1.1field-weighted citation impact, top 24% 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

6 citing papers in PubMed, 10 citations in OpenAlex.

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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

16 authors at 4 institutions in 1 country.

Christoffer K-J StarkResearch Center of Applied and Preventive Cardiovascular Medicine, University of TurkuTurku, Finland; Heart Center, Turku University Hospital and University of TurkuTurku, Finland.
Miikka TarkiaTurku PET Centre, Turku University Hospital and University of Turku Turku, Finland.
Rasmus KentalaResearch Center of Applied and Preventive Cardiovascular Medicine, University of Turku Turku, Finland.
Markus MalmbergHeart Center, Turku University Hospital and University of Turku Turku, Finland.
Tommi VähäsiltaResearch Center of Applied and Preventive Cardiovascular Medicine, University of TurkuTurku, Finland; Heart Center, Turku University Hospital and University of TurkuTurku, Finland.
Matti SavoResearch Center of Applied and Preventive Cardiovascular Medicine, University of Turku Turku, Finland.
Ville-Veikko HynninenDepartment of Anesthesiology, Intensive Care, Emergency Care and Pain Medicine, Turku University Hospital Turku, Finland.
Mikko HeleniusChildren's Hospital, Pediatric Cardiology, Helsinki University Hospital Helsinki, Finland.
Saku RuohonenResearch Center of Applied and Preventive Cardiovascular Medicine, University of Turku Turku, Finland.
Juho JalkanenDepartment of Vascular Surgery, Turku University Hospital and University of Turku Turku, Finland.
Pekka TaimenDepartment of Pathology, Turku University Hospital and University of Turku Turku, Finland.
Tero-Pekka AlastaloChildren's Hospital, Pediatric Cardiology, Helsinki University Hospital Helsinki, Finland.
Antti SarasteTurku PET Centre, Turku University Hospital and University of Turku Turku, Finland.
Juhani KnuutiTurku PET Centre, Turku University Hospital and University of Turku Turku, Finland.
Timo SavunenResearch Center of Applied and Preventive Cardiovascular Medicine, University of Turku Turku, Finland.
Juha KoskenvuoResearch Center of Applied and Preventive Cardiovascular Medicine, University of Turku Turku, Finland.
University of Turku · FITurku University Hospital · FIHelsinki University Hospital · FITurku PET Centre · FI

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The use of cardiopulmonary bypass (CPB) and aortic cross-clamping causes myocardial ischemia-reperfusion injury (I-RI) and can lead to reduced postoperative cardiac function. We investigated whether this injury could be attenuated by thymosin beta 4 (TB4), a peptide which has showed cardioprotective effects. Pigs received either TB4 or vehicle and underwent CPB and aortic cross-clamping for 60 min with cold intermittent blood-cardioplegia and were then followed for 30 h. Myocardial function and blood flow was studied by cardiac magnetic resonance and PET imaging. Tissue and plasma samples were analyzed to determine the amount of cardiomyocyte necrosis and apoptosis as well as pharmacokinetics of the peptide. In vitro studies were performed to assess its influence on blood coagulation and vasomotor tone. Serum levels of the peptide were increased after administration compared to control samples. TB4 did not decrease the amount of cell death. Cardiac function and global myocardial blood flow was similar between the study groups. At high doses a vasoconstrictor effect on mesentery arteries and a vasodilator effect on coronary arteries was observed and blood clot firmness was reduced when tested in the presence of an antiplatelet agent. Despite promising results in previous trials the cardioprotective effect of TB4 was not demonstrated in this model for global myocardial I-RI.

Indexed as

cardioprotectioncardiopulmonary bypasscoagulationischemia-reperfusion injurythymosin beta 4vasoconstriction

Identifiers

PMID27199757
PMCPMC4853610
OpenAlexW2345367464

What OpenQuestion holds

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Registered trials

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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.