title: Combination of deep sea water andSesamum indicumleaf extract prevents high-fat diet-induced obesity through AMPK activation in visceral adipose tissue.
abstract: The aim of the present study was to evaluate the protective effects of a combination of deep sea water (DSW) and Sesamum indicum leaf extract (SIE) against high-fat diet (HFD)-induced obesity and investigate its molecular mechanisms in adipose tissue. ICR mice were randomly divided into three groups: HFD control (HFC), DSW and DSW + 125 mg/kg SIE (DSS) groups. The mice in the HFC group had free access to drinking water while those in the DSW and DSS groups had free access to DSW. The mice in the DSS group were treated with SIE once per day for 8 weeks. The mice in all three groups were allowed to freely access a HFD. Compared with the HFC group, the DSS group showed lower body weight gain and serum levels of glucose, triglycerides and leptin. Histological analyses of the epididymal white, retroperitoneal white and scapular brown adipose tissue of mice in the DSS group revealed that the adipocytes were markedly decreased in size compared with those in the HFC group. Moreover, DSS significantly increased the levels of phosphorylated adenosine monophosphate-activated protein kinase (AMPK) and its substrate, acetyl-CoA carboxylase (ACC) in mice epididymal adipose tissues. Furthermore, DSS upregulated the expression levels of lipolysis-associated mRNA, specifically peroxisome proliferator-activated receptor-α (PPAR-α) and cluster of differentiation 36 (CD36), and energy expenditure-associated mRNA, namely uncoupling protein 2 (UCP2) and carnitine palmitoyltransferase-1 (CPT1) in the epididymal adipose tissues. By contrast, DSS suppressed the expression of the lipogenesis-related gene sterol regulatory element-binding protein-1 (SREBP1) at the mRNA level. These results suggest that DSS is effective for suppressing body weight gain and enhancing the lipid profile.
authors.affiliation: Department of Pharmacognosy, College of Pharmacy, Yanbian University, Yanji, Jilin 133000, P.R. China; Key Laboratory of Natural Resources of Changbai Mountain and Functional Molecules, Ministry of Education, Yanbian University, Yanji, Jilin 133000, P.R. China.
authors.forename: Haidan
authors.initials: H
authors.lastname: Yuan
authors.affiliation: Department of Pharmacology, College of Pharmacy, Kyung Hee University, Seoul 130701, Republic of Korea.
authors.forename: Sunghyun
authors.initials: S
authors.lastname: Chung
authors.affiliation: Department of Pharmacognosy, College of Pharmacy, Yanbian University, Yanji, Jilin 133000, P.R. China.
authors.forename: Qianqian
authors.initials: Q
authors.lastname: Ma
authors.affiliation: Department of Pharmacognosy, College of Pharmacy, Yanbian University, Yanji, Jilin 133000, P.R. China.
authors.forename: L I
authors.initials: LI
authors.lastname: Ye
authors.affiliation: Department of Pharmacognosy, College of Pharmacy, Yanbian University, Yanji, Jilin 133000, P.R. China; Key Laboratory of Natural Resources of Changbai Mountain and Functional Molecules, Ministry of Education, Yanbian University, Yanji, Jilin 133000, P.R. China.
authors.forename: Guangchun
authors.initials: G
authors.lastname: Piao
keywords: Sesamum indicum leaf; deep sea water; high-fat diet; obesity