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  • Title: Radical Scavenging-Linked Anti-Obesity Effect of Standardized Ecklonia stolonifera Extract on 3T3-L1 Preadipocytes and High-Fat Diet-Fed ICR Mice.
    Author: Han X, Choi SI, Men X, Lee SJ, Oh G, Jin H, Oh HJ, Kim E, Kim J, Lee BY, Lee OH.
    Journal: J Med Food; 2023 Apr; 26(4):232-243. PubMed ID: 36897318.
    Abstract:
    Ecklonia stolonifera, belonging to the Laminariaceae family, is an edible widely distributed perennial brown marine alga that is rich in polyphenols. Dieckol, a bioactive component of the E. stolonifera extract (ESE), is a major phlorotannin compound found only in brown algae. This study aimed to evaluate the ability of ESE to inhibit lipid accumulation caused by oxidative stress in 3T3-L1 adipocytes and high-fat diet-fed obese ICR mice. We report that ESE-treated obese ICR mice, which were fed a high-fat diet, showed reduced whole-body and adipose tissue weights with improved plasma lipid profiles. In vitro and in vivo studies have indicated that ESE inhibited the expression of adipogenesis-related genes associated with fat accumulation through AMP-activated protein kinase activity and increased the expression of lipolysis-related genes. In addition, ESE reduced the expression of enzymes involved in reactive oxygen species (ROS) production and increased the expression of antioxidant enzymes, thereby reducing ROS levels. These findings suggest that ESE possesses strong antioxidant properties and inhibits oxidative stress-induced lipid accumulation by reducing ROS production during adipocyte generation.
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