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

Abstract Background Numerous 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 present...

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Main Authors: Zahra Mohammadi, Mahdi Ravankhah, Mohammad Ahmadi, Omid Keshavarzian, Isaac Azari, Mozhan Abdollahi, Mehdi Rezaei, Hamed Akbari
Format: Article
Language:English
Published: BMC 2024-11-01
Series:BMC Cardiovascular Disorders
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Online Access:https://doi.org/10.1186/s12872-024-04318-8
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author Zahra Mohammadi
Mahdi Ravankhah
Mohammad Ahmadi
Omid Keshavarzian
Isaac Azari
Mozhan Abdollahi
Mehdi Rezaei
Hamed Akbari
author_facet Zahra Mohammadi
Mahdi Ravankhah
Mohammad Ahmadi
Omid Keshavarzian
Isaac Azari
Mozhan Abdollahi
Mehdi Rezaei
Hamed Akbari
author_sort Zahra Mohammadi
collection DOAJ
description Abstract Background Numerous 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). Methods We 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. Results A 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. Conclusions Our 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).
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spelling doaj-art-0c4f34d355d7437d970729627d27372a2024-11-17T12:08:42ZengBMCBMC Cardiovascular Disorders1471-22612024-11-0124111110.1186/s12872-024-04318-8L-arginine impact on inflammatory and cardiac markers in patients undergoing coronary artery bypass graft: a systematic review and meta-analysis of randomized controlled trialsZahra Mohammadi0Mahdi Ravankhah1Mohammad Ahmadi2Omid Keshavarzian3Isaac Azari4Mozhan Abdollahi5Mehdi Rezaei6Hamed Akbari7Student Research Committee, Fasa University of Medical SciencesStudent Research Committee, Shiraz University of Medical SciencesStudents’ Scientific Research Center, Tehran University of Medical SciencesShiraz School for Medicine, Shiraz University of Medical SciencesStudent Research Committee, Yasuj University of Medical SciencesStudent Research Committee, School of Medicine, Shiraz University of Medical SciencesDepartment of Cardiology, Fars-Iranian Heart Association, Fars Society of Internal MedicineCardiovascular Research Centre, Department of Pediatrics, Faculty of Medicine and Dentistry, University of AlbertaAbstract Background Numerous 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). Methods We 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. Results A 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. Conclusions Our 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).https://doi.org/10.1186/s12872-024-04318-8ArginineCardioplegiaIschemia-reperfusion injuryCoronary artery bypass surgeryInflammation
spellingShingle Zahra Mohammadi
Mahdi Ravankhah
Mohammad Ahmadi
Omid Keshavarzian
Isaac Azari
Mozhan Abdollahi
Mehdi Rezaei
Hamed Akbari
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
BMC Cardiovascular Disorders
Arginine
Cardioplegia
Ischemia-reperfusion injury
Coronary artery bypass surgery
Inflammation
title 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
title_full 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
title_fullStr 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
title_full_unstemmed 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
title_short 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
title_sort 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
topic Arginine
Cardioplegia
Ischemia-reperfusion injury
Coronary artery bypass surgery
Inflammation
url https://doi.org/10.1186/s12872-024-04318-8
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