Effects of carnitine on nutritional parameters in patients with chronic Kidney disease: An updated systematic review and meta-analysis

Protein energy malnutrition is a common problem in patients with chronic kidney disease (CKD). Scattered reports indicate that supplementation of Carnitine may improve patients' clinical symptoms, with significant improvement in nutritional parameters. This systematic review was done to documen...

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Main Authors: Tahereh Gholipur-Shahraki, Awat Feizi, Mojgan Mortazavi, Shirinsadat Badri
Format: Article
Language:English
Published: Wolters Kluwer Medknow Publications 2018-01-01
Series:Journal of Research in Pharmacy Practice
Subjects:
Online Access:http://www.jrpp.net/article.asp?issn=2319-9644;year=2018;volume=7;issue=2;spage=57;epage=68;aulast=Gholipur-Shahraki
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author Tahereh Gholipur-Shahraki
Awat Feizi
Mojgan Mortazavi
Shirinsadat Badri
author_facet Tahereh Gholipur-Shahraki
Awat Feizi
Mojgan Mortazavi
Shirinsadat Badri
author_sort Tahereh Gholipur-Shahraki
collection DOAJ
description Protein energy malnutrition is a common problem in patients with chronic kidney disease (CKD). Scattered reports indicate that supplementation of Carnitine may improve patients' clinical symptoms, with significant improvement in nutritional parameters. This systematic review was done to document the evidences of Carnitine effects in nutritional status of CKD patients. Peer-reviewed RCTs on Carnitine administration at any dose in CKD patients with at least four weeks of follow-up were including in the meta-analysis. Online databases (PubMed/Medline, ISI Web of Science, Embase, and Scopus) were searched to October 2017 using selected MeSH terms related to the study topic. Data was extracted independently by two reviewers using a standard form and then cross-checked. Statistical analyses were carried out with Comprehensive Meta-analysis software. Data are presented as standard mean difference (SMD) and 95% confidence interval (CI). According to the predefined criteria, a total of 14 randomized controlled clinical trials were included and screened for data extraction by two reviewers, separately. The preliminary results extracted from meta-analysis have shown that Carnitine can significantly increase the levels of albumin (SMD: -0.861; 95% CI: -1.321, -0.402), total protein (SMD: -0.418; 95% CI: -0.695, -0.141), total cholesterol (SMD: -0.350; 95% CI: -0.564, -0.135), LDL cholesterol (SMD: -0.362; 95% CI: -0.551, -0.173), transferrin (SMD: -1.465; 95% CI: -1.822, -1.108), and hemoglobin (SMD: -0.525; 95% CI: -0.732, -0.318); however there were no conclusive effects of Carnitine on body weight (SMD: -0.057; 95% CI: -0.404, 0.291) and BMI (SMD: -0.567; 95% CI: -1.548, 0.415), in pooled analyses. The results of this meta-analysis showed that there are considerable useful pieces of evidence so far about the effect of Carnitine on nutritional factors; however, there is still doubt about some evidences with this regard. It seems necessary to carry out clinical trials with stronger designs to evaluate the impact of these primary outcomes on the patients' clinical conditions. Having this evidences, the potential role of Carnitine in improving malnutrition consequences in CKD patients would be clearly defined.
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spelling doaj.art-bb6bdf7552434a559fc6a85d0dad39632022-12-21T20:20:44ZengWolters Kluwer Medknow PublicationsJournal of Research in Pharmacy Practice2319-96442279-042X2018-01-0172576810.4103/jrpp.JRPP_18_50Effects of carnitine on nutritional parameters in patients with chronic Kidney disease: An updated systematic review and meta-analysisTahereh Gholipur-ShahrakiAwat FeiziMojgan MortazaviShirinsadat BadriProtein energy malnutrition is a common problem in patients with chronic kidney disease (CKD). Scattered reports indicate that supplementation of Carnitine may improve patients' clinical symptoms, with significant improvement in nutritional parameters. This systematic review was done to document the evidences of Carnitine effects in nutritional status of CKD patients. Peer-reviewed RCTs on Carnitine administration at any dose in CKD patients with at least four weeks of follow-up were including in the meta-analysis. Online databases (PubMed/Medline, ISI Web of Science, Embase, and Scopus) were searched to October 2017 using selected MeSH terms related to the study topic. Data was extracted independently by two reviewers using a standard form and then cross-checked. Statistical analyses were carried out with Comprehensive Meta-analysis software. Data are presented as standard mean difference (SMD) and 95% confidence interval (CI). According to the predefined criteria, a total of 14 randomized controlled clinical trials were included and screened for data extraction by two reviewers, separately. The preliminary results extracted from meta-analysis have shown that Carnitine can significantly increase the levels of albumin (SMD: -0.861; 95% CI: -1.321, -0.402), total protein (SMD: -0.418; 95% CI: -0.695, -0.141), total cholesterol (SMD: -0.350; 95% CI: -0.564, -0.135), LDL cholesterol (SMD: -0.362; 95% CI: -0.551, -0.173), transferrin (SMD: -1.465; 95% CI: -1.822, -1.108), and hemoglobin (SMD: -0.525; 95% CI: -0.732, -0.318); however there were no conclusive effects of Carnitine on body weight (SMD: -0.057; 95% CI: -0.404, 0.291) and BMI (SMD: -0.567; 95% CI: -1.548, 0.415), in pooled analyses. The results of this meta-analysis showed that there are considerable useful pieces of evidence so far about the effect of Carnitine on nutritional factors; however, there is still doubt about some evidences with this regard. It seems necessary to carry out clinical trials with stronger designs to evaluate the impact of these primary outcomes on the patients' clinical conditions. Having this evidences, the potential role of Carnitine in improving malnutrition consequences in CKD patients would be clearly defined.http://www.jrpp.net/article.asp?issn=2319-9644;year=2018;volume=7;issue=2;spage=57;epage=68;aulast=Gholipur-ShahrakiCarnitinechronic kidney diseasemeta-analysisnutritional parameterssystematic review
spellingShingle Tahereh Gholipur-Shahraki
Awat Feizi
Mojgan Mortazavi
Shirinsadat Badri
Effects of carnitine on nutritional parameters in patients with chronic Kidney disease: An updated systematic review and meta-analysis
Journal of Research in Pharmacy Practice
Carnitine
chronic kidney disease
meta-analysis
nutritional parameters
systematic review
title Effects of carnitine on nutritional parameters in patients with chronic Kidney disease: An updated systematic review and meta-analysis
title_full Effects of carnitine on nutritional parameters in patients with chronic Kidney disease: An updated systematic review and meta-analysis
title_fullStr Effects of carnitine on nutritional parameters in patients with chronic Kidney disease: An updated systematic review and meta-analysis
title_full_unstemmed Effects of carnitine on nutritional parameters in patients with chronic Kidney disease: An updated systematic review and meta-analysis
title_short Effects of carnitine on nutritional parameters in patients with chronic Kidney disease: An updated systematic review and meta-analysis
title_sort effects of carnitine on nutritional parameters in patients with chronic kidney disease an updated systematic review and meta analysis
topic Carnitine
chronic kidney disease
meta-analysis
nutritional parameters
systematic review
url http://www.jrpp.net/article.asp?issn=2319-9644;year=2018;volume=7;issue=2;spage=57;epage=68;aulast=Gholipur-Shahraki
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AT mojganmortazavi effectsofcarnitineonnutritionalparametersinpatientswithchronickidneydiseaseanupdatedsystematicreviewandmetaanalysis
AT shirinsadatbadri effectsofcarnitineonnutritionalparametersinpatientswithchronickidneydiseaseanupdatedsystematicreviewandmetaanalysis