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Clin Med Insights Endocrinol Diabetes. 2019 Jan 22;12:1179551418825049. doi: 10.1177/1179551418825049. eCollection 2019.

The Effect of Sodium Channel Blocker, Mexiletine, on Body Weight in Type 2 Diabetes Patients with Visceral Obesity.

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1
Ueno Internal Medicine and Diabetes Clinic, Kobe, Japan.

Abstract

Objective:

Mexiletine is an anti-arrhythmic agent also used for the treatment of painful diabetic neuropathy. In this study, the effect of mexiletine on body weight was evaluated in type 2 diabetes patients with diabetic neuropathy exhibiting visceral obesity.

Methods:

Type 2 diabetes patients with neuropathy exhibiting visceral obesity (n = 21) treated by mexiletine (300 mg/day) and a control group of type 2 diabetes patients with the same condition who received vitamin B12 (n = 12) were retrospectively evaluated. Body weight, waist circumference, hemoglobin A1c (HbA1c), blood pressure, liver function, serum lipids, and serum uric acid were assessed before and 6 months after the treatment.

Results:

Mexiletine significantly decreased body weight and waist circumference. The changes in body weight and waist circumference in 6 months in the mexiletine group were greater than in the control group. In metabolic parameters, there were significant decreases in triglyceride (TG) and serum uric acid. There were positive relationships between the change in body weight and the changes in TG, uric acid, alanine aminotransferase (ALT), and HbA1c.

Conclusions:

Mexiletine may affect body weight regulation. It ameliorated the metabolic parameters possibly by decreasing visceral fat. Further study should be performed to clarify the mechanism of the effect.

KEYWORDS:

body weight; mexiletine; sodium channel blocker; type 2 diabetes; visceral obesity

Conflict of interest statement

Declaration of conflicting interests:The author(s) declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.

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