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Adv Clin Exp Med. 2017 Mar-Apr;26(2):333-338. doi: 10.17219/acem/61609.

L-carnitine treatment of insulin resistance: A systematic review and meta-analysis.

Author information

1
Department of Gastroenterology, the Affiliated Yixing Hospital of Jiangsu University, Yixing, Jiangsu, China.
2
Department of Anesthesiology, the Affiliated Yixing Hospital of Jiangsu University, Yixing, Jiangsu, China.
3
Central Laboratory, the Affiliated Yixing Hospital of Jiangsu University, Yixing, Jiangsu, China.
4
Department of Critical Care Medicine, the Affiliated Yixing Hospital of Jiangsu University, Yixing, Jiangsu, China.
5
Department of Cardiac & Thoracic Surgery, the Affiliated Yixing Hospital of Jiangsu University, Yixing, Jiangsu, China.

Abstract

BACKGROUND:

L-carnitine has been used for several years as an adjuvant therapy in oxidative stress, blood sugar, high-sensitivity C-reactive protein (CRP), anemia, etc. However, the efficacy of L-carnitine treating insulin resistance (IR) remains controversial. Homeostasis model assessment of Insulin Resistance (HOMA-IR) is widely used in the clinical evaluation of patients with IR.

OBJECTIVES:

A meta-analysis, including randomized controlled trials (RCTs), was performed to assess the effect of L-carnitine on HOMA-IR patients.

MATERIAL AND METHODS:

The Cochrane Library, PubMed, and EMBASE databases were systematically searched to identify RCTs which evaluated the effects of L-carnitine on HOMA-IR patients. We screened relevant studies according to predefined inclusion and exclusion criteria. In the selected articles, we extracted the data: study design, sample size, age, L-carnitine dose and regimen, body mass index (BMI) of patients, mode of administration, study duration and study outcomes.

RESULTS:

A total of 5 studies were included for the meta-analysis. The result showed L-carnitine was useful in the treatment of IR (WMD -0.724, CI -0.959 -0.488, p < 0.0001). Evaluation at 3, 6, 9, 12 months, the p-values were 0.875, 0.165, 0.031, 0, 007, respectively.

CONCLUSIONS:

L-carnitine was useful in treating patients with IR. L-carnitine can treat IR more effectively with prolonging the medication time. However, more RCTs with long-term L-carnitine treatment of IR are needed to confirm the viewpoint.

KEYWORDS:

L-carnitine; insulin resistance; meta-analysis

PMID:
28791854
DOI:
10.17219/acem/61609
[Indexed for MEDLINE]
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