Impact of L-carnitine on plasma lipoprotein(a) concentrations: A systematic review and meta-analysis of randomized controlled trials

Serban, M. C. and Sahebkar, A. and Mikhailidis, D. P. and Toth, P. P. and Jones, S. R. and Muntner, P. and Blaha, M. J. and Andrica, F. and Martin, S. S. and Borza, C. and Lip, G. Y. H. and Ray, K. K. and Rysz, J. and Hazen, S. L. and Banach, M. (2016) Impact of L-carnitine on plasma lipoprotein(a) concentrations: A systematic review and meta-analysis of randomized controlled trials. Scientific Reports, 6.

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We aimed to assess the impact of L-carnitine on plasma Lp(a) concentrations through systematic review and meta-analysis of available RCTs. The literature search included selected databases up to 31 st January 2015. Meta-analysis was performed using fixed-effects or random-effect model according to I2 statistic. Effect sizes were expressed as weighted mean difference (WMD) and 95 confidence interval (CI). The meta-analysis showed a significant reduction of Lp(a) levels following L-carnitine supplementation (WMD: -8.82 mg/dL, 95 CI: -10.09, -7.55, p < 0.001). When the studies were categorized according to the route of administration, a significant reduction in plasma Lp(a) concentration was observed with oral (WMD: -9.00 mg/dL, 95 CI: -10.29, -7.72, p < 0.001) but not intravenous L-carnitine (WMD: -2.91 mg/dL, 95 CI: -10.22, 4.41, p = 0.436). The results of the meta-regression analysis showed that the pooled estimate is independent of L-carnitine dose (slope: -0.30; 95 CI: -4.19, 3.59; p = 0.878) and duration of therapy (slope: 0.18; 95 CI: -0.22, 0.59; p = 0.374). In conclusion, the meta-analysis suggests a significant Lp(a) lowering by oral L-carnitine supplementation. Taking into account the limited number of available Lp(a)-targeted drugs, L-carnitine might be an effective alternative to effectively reduce Lp(a). Prospective outcome trials will be required to fully elucidate the clinical value and safety of oral L-carnitine supplementation.

Item Type: Article
Additional Information: Cited By :32 Export Date: 16 February 2020 Correspondence Address: Banach, M.; Department of Hypertension, Department of Nephrology and Hypertension, Medical University of LodzPoland; email:
Uncontrolled Keywords: carnitine lipid lipoprotein A blood dietary supplement health survey human meta analysis publishing randomized controlled trial (topic) Dietary Supplements Humans Lipids Lipoprotein(a) Population Surveillance Publication Bias Randomized Controlled Trials as Topic
Subjects: WH Hemic and Lymphatic System
Divisions: Mashhad University of Medical Sciences
Depositing User: mr lib4 lib4
Date Deposited: 26 Feb 2020 11:15
Last Modified: 26 Feb 2020 11:15

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