Effect of L-carnitine supplementation on circulating C-reactive protein levels: A systematic review and meta-analysis

Background: C-reactive protein (CRP) has been proposed as a risk marker and risk factor of cardiovascular disease. There have been a number of clinical reports suggesting that supplementation with L-carnitine can modulate systemic inflammation and lower circulating CRP concentrations, but the result...

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Main Author: Sahebkar Amirhossein
Format: Article
Language:English
Published: Society of Medical Biochemists of Serbia, Belgrade 2015-01-01
Series:Journal of Medical Biochemistry
Subjects:
Online Access:https://scindeks-clanci.ceon.rs/data/pdf/1452-8258/2015/1452-82581502151S.pdf
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author Sahebkar Amirhossein
author_facet Sahebkar Amirhossein
author_sort Sahebkar Amirhossein
collection DOAJ
description Background: C-reactive protein (CRP) has been proposed as a risk marker and risk factor of cardiovascular disease. There have been a number of clinical reports suggesting that supplementation with L-carnitine can modulate systemic inflammation and lower circulating CRP concentrations, but the results have not been consistent. Methods: A comprehensive literature search in Medline, Scopus and Cochrane Central Register of Controlled Trials was performed in December 2012 to identify clinical trials investigating the impact of oral L-carnitine supplementation on serum/plasma CRP concentration. A random effect method was used to calculate the combined effect size. Results: Six studies comprising 541 cases and 546 controls met the inclusion criteria. Meta-analysis of included trials revealed a significant reduction of circulating CRP concentrations in subjects under L-carnitine intervention compared to the control treatment. The calculated combined weighted mean reduction in CRP concentrations was -0.39 mg/L [95% CI (-0.62 - -0.16)]. This effect size estimate was found to be robust and remained unaffected by the removal of each single study. Conclusions: The overall findings of the present metaanalysis support the clinically relevant benefit of L-carnitine supplementation in lowering the circulating levels of CRP.
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spelling doaj.art-d9ba27f0c6f14ae9b6c66fba7746cb7a2022-12-21T23:46:00ZengSociety of Medical Biochemists of Serbia, BelgradeJournal of Medical Biochemistry1452-82581452-82662015-01-013421511591452-82581502151SEffect of L-carnitine supplementation on circulating C-reactive protein levels: A systematic review and meta-analysisSahebkar Amirhossein0Mashhad University of Medical Sciences, Biotechnology Research Center, Mashhad, IranBackground: C-reactive protein (CRP) has been proposed as a risk marker and risk factor of cardiovascular disease. There have been a number of clinical reports suggesting that supplementation with L-carnitine can modulate systemic inflammation and lower circulating CRP concentrations, but the results have not been consistent. Methods: A comprehensive literature search in Medline, Scopus and Cochrane Central Register of Controlled Trials was performed in December 2012 to identify clinical trials investigating the impact of oral L-carnitine supplementation on serum/plasma CRP concentration. A random effect method was used to calculate the combined effect size. Results: Six studies comprising 541 cases and 546 controls met the inclusion criteria. Meta-analysis of included trials revealed a significant reduction of circulating CRP concentrations in subjects under L-carnitine intervention compared to the control treatment. The calculated combined weighted mean reduction in CRP concentrations was -0.39 mg/L [95% CI (-0.62 - -0.16)]. This effect size estimate was found to be robust and remained unaffected by the removal of each single study. Conclusions: The overall findings of the present metaanalysis support the clinically relevant benefit of L-carnitine supplementation in lowering the circulating levels of CRP.https://scindeks-clanci.ceon.rs/data/pdf/1452-8258/2015/1452-82581502151S.pdfcarnitinenutritioncoronary artery diseaseatherosclerosissystematic reviewclinical trial
spellingShingle Sahebkar Amirhossein
Effect of L-carnitine supplementation on circulating C-reactive protein levels: A systematic review and meta-analysis
Journal of Medical Biochemistry
carnitine
nutrition
coronary artery disease
atherosclerosis
systematic review
clinical trial
title Effect of L-carnitine supplementation on circulating C-reactive protein levels: A systematic review and meta-analysis
title_full Effect of L-carnitine supplementation on circulating C-reactive protein levels: A systematic review and meta-analysis
title_fullStr Effect of L-carnitine supplementation on circulating C-reactive protein levels: A systematic review and meta-analysis
title_full_unstemmed Effect of L-carnitine supplementation on circulating C-reactive protein levels: A systematic review and meta-analysis
title_short Effect of L-carnitine supplementation on circulating C-reactive protein levels: A systematic review and meta-analysis
title_sort effect of l carnitine supplementation on circulating c reactive protein levels a systematic review and meta analysis
topic carnitine
nutrition
coronary artery disease
atherosclerosis
systematic review
clinical trial
url https://scindeks-clanci.ceon.rs/data/pdf/1452-8258/2015/1452-82581502151S.pdf
work_keys_str_mv AT sahebkaramirhossein effectoflcarnitinesupplementationoncirculatingcreactiveproteinlevelsasystematicreviewandmetaanalysis