Gynostemma Pentaphyllum Extract Ameliorates High-Fat Diet-Induced Obesity in C57BL/6N Mice by Upregulating SIRT1

Autor: Joo Myung Moon, Su-Min Lim, Kyu Min Cha, Yoonhee Kim, So Mi Kim, Jae In Jung, Hyun Sook Lee, Tae Young Kim, Tae Kyu Oh, Eun Ji Kim, Jae Kyoung Lee
Jazyk: angličtina
Rok vydání: 2019
Předmět:
Zdroj: Nutrients, Vol 11, Iss 10, p 2475 (2019)
Nutrients
Volume 11
Issue 10
ISSN: 2072-6643
Popis: Gynostemma pentaphyllum is widely used in Asia as a herbal medicine to treat type 2 diabetes, dyslipidemia, and inflammation. Here, we investigated the anti-obesity effect and underlying mechanism of G. pentaphyllum extract (GPE) enriched in gypenoside L, gypenoside LI, and ginsenoside Rg3 and obtained using a novel extraction method. Five-week-old male C57BL/6N mice were fed a control diet (CD), high-fat diet (HFD), HFD + 100 mg/kg body weight (BW)/day GPE (GPE 100), HFD + 300 mg/kg BW/day GPE (GPE 300), or HFD + 30 mg/kg BW/day Orlistat (Orlistat 30) for 8 weeks. The HFD-fed mice showed significant increases in body weight, fat mass, white adipose tissue, and adipocyte hypertrophy compared to the CD group
but GPE inhibited those increases. GPE reduced serum levels of triglyceride, total cholesterol, and LDL-cholesterol, without affecting HDL-cholesterol. GPE significantly increased AMPK activation and suppressed adipogenesis by decreasing the mRNA expression of CCAAT/enhancer binding protein-&alpha
(C/EBP&alpha
), peroxisome proliferator-activated receptor-&gamma
(PPAR&gamma
), sterol regulatory element-binding protein-1c (SREBP1c), PPAR&gamma
coactivator-1&alpha
fatty acid synthase (FAS), adipocyte protein 2 (AP2), and sirtuin 1 (SIRT1) and by increasing that of carnitine palmitoyltransferase (CPT1) and hormone- sensitive lipase (HSL). This study demonstrated the ameliorative effect of GPE on obesity and elucidated the underlying molecular mechanism.
Databáze: OpenAIRE