Evidence map›Paper›PMID 39538180›Full record

SynthesisBMC cardiovascular disorders2024

L-arginine impact on inflammatory and cardiac markers in patients undergoing coronary artery bypass graft: a systematic review and meta-analysis of randomized controlled trials.

Zahra Mohammadi, Mahdi Ravankhah, Mohammad Ahmadi, Omid Keshavarzian, Isaac Azari, Mozhan Abdollahi, Mehdi Rezaei, Hamed Akbari

Abstract readSystematic ReviewMeta-Analysis
In one paragraph

Synthesis in BMC cardiovascular disorders, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
–field-weighted citation impact
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

3 citing papers in PubMed.

  1. Review
  2. Article
  3. Review
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

8 authors.

Zahra MohammadiStudent Research Committee, Fasa University of Medical Sciences, Fasa, Iran.
Mahdi RavankhahStudent Research Committee, Shiraz University of Medical Sciences, Shiraz, Iran.
Mohammad AhmadiStudents' Scientific Research Center, Tehran University of Medical Sciences, Tehran, Iran.
Omid KeshavarzianShiraz School for Medicine, Shiraz University of Medical Sciences, Shiraz, Iran.
Isaac AzariStudent Research Committee, Yasuj University of Medical Sciences, Yasuj, Iran.
Mozhan AbdollahiStudent Research Committee, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran.
Mehdi RezaeiDepartment of Cardiology, Fars-Iranian Heart Association, Fars Society of Internal Medicine, Shiraz, Iran. rezaeem@sums.ac.ir.ORCID 0000-0001-8127-4764
Hamed AkbariCardiovascular Research Centre, Department of Pediatrics, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta, Canada. hakbari2@ualberta.ca.ORCID 0000-0002-9939-6652

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundNumerous studies have explored the effects of L-arginine, whether administered in the form of a supplement or through infusion during cardioplegia, on cardiac and inflammatory markers in individuals undergoing coronary artery bypass grafting (CABG). However, these studies presented contradictory findings. Consequently, the objective of this study was to investigate the impact of l-arginine on these markers by analyzing available randomized controlled trials (RCTs).

methodsWe performed an extensive search across various databases, including Embase, Medline/PubMed, Web of Science, Scopus, Cochrane Library, and Google Scholar, covering research published until December 2023. To analyze the mean changes in inflammatory and cardiac markers between the L-arginine and control groups, we calculated the weighted mean difference (WMD) along with the corresponding 95% confidence interval (CI) using a random-effects model.

resultsA total of 393 RCTs were identified during the initial search. After screening and selection, 7 trials were included. In a meta-analysis of three trials that reported troponin T levels, we found a significant impact of L-arginine on reducing troponin T levels (WMD = -0.61 ng/ml; 95% CI: -1.07, -0.15). Our analysis also showed that L-arginine had a noticeable impact on decreasing interleukin-6 (IL-6) levels (WMD = -7.72 pg/ml; 95% CI: -15.05, -0.39). However, we found no considerable impact of L-arginine treatment on creatine phosphokinase-MB (CPK-MB), tumor necrosis factor-alpha (TNF-α), and troponin I compared to the placebo groups.

conclusionsOur findings suggest that L-arginine may benefit patients undergoing CABG, as it helps reduce inflammatory reactions and limits myocardial ischemia. This study registered in the PROSPERO database (Registration No. CRD42024508341).

Indexed as

ArginineBiomarkersCoronary Artery BypassCoronary Artery DiseaseInflammation MediatorsAnti-Inflammatory AgentsHumansInflammationRandomized Controlled Trials as TopicTreatment OutcomeTroponin TAnti-Inflammatory AgentsArginineBiomarkersInflammation MediatorsTroponin TArginineCardioplegiaCoronary artery bypass surgeryInflammationIschemia-reperfusion injury

Identifiers

PMID39538180
PMCPMC11562105

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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.