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    Please use this identifier to cite or link to this item: https://ir.cnu.edu.tw/handle/310902800/31680

    標題: Raspberry Ketone Reduced Lipid Accumulation in 3T3-L1 Cells and Ovariectomy-Induced Obesity in Wistar Rats by Regulating Autophagy Mechanisms
    作者: Leu, Sy-Ying
    Chen, Yi-Chen
    Tsai, Yung-Chieh
    Hung, Yao-Wen
    Hsu, Chih-Hsiung
    Lee, Yen-Mei
    Cheng, Pao-Yun
    貢獻者: Natl Def Med Ctr, Grad Inst Life Sci
    Natl Def Med Ctr, Grad Inst Physiol, Dept Physiol & Biophys
    Chi Mei Med Ctr, Dept Obstet & Gynecol
    Taipei Med Univ, Dept Med
    Chia Nan Univ Pharm & Sci, Dept Sport Management
    Natl Def Med Ctr, Inst Prevent Med
    Triserv Gen Hosp,Natl Def Med Ctr, Dept Internal Med
    Natl Def Med Ctr, Dept Pharmacol
    關鍵字: raspberry ketone
    日期: 2017-12-20
    上傳時間: 2018-11-30 15:52:38 (UTC+8)
    出版者: Amer Chemical Soc
    摘要: This study aimed to determine the antiobesity effects of raspberry ketone (RK), one of the major aromatic compounds contained in raspberry, and its underlying mechanisms. During adipogenesis of 3T3-L1 cells, RK (300 mu M) significantly reduced lipid accumulation and downregulated the expression of CCAAT/enhancer-binding protein alpha (C/EBP alpha), peroxisome proliferation-activated receptor gamma (PPAR gamma), fatty acid-binding protein 4 (FABP4), and fatty acid synthase (FAS). RK also reduced the expression of light chain 3B (LC3B), autophagy-related protein 12 (Atg12), sirtuin 1 (SIRT1), and phosphorylated-tuberous sclerosis complex 2 (TSC2), whereas it increased the level of p62 and phosphorylated-mammalian target of rapamycin (mTOR). Daily administration of RK decreased the body weight (ovariectomy [Ovx] + RK, 352.6 +/- 5 vs Ovx, 386 +/- 5.8 g; P < 0:05), fat mass (Ovx + RK, 3.2 +/- 0.05 vs Ovx, 5.0 +/- 0.4 g; P < 0.05), and fat cell size (Ovx + RK, 6.4 +/- 0.6 vs Ovx, 11.1 +/- 0.7 X 10(3) mu m(2); P < 0.05) in Ovx-induced obesity in rats. The expression of PPAR gamma, C/EBP alpha, FAS, and FABP4 was significantly reduced in the Ovx + RK group compared with that in the Ovx group. Similar patterns were observed in autophagy-related proteins and endoplasmic reticulum stress proteins. These results suggest that RK inhibited lipid accumulation by regulating autophagy in 3T3-L1 cells and Ovx-induced obese rats.
    關聯: Journal of Agricultural and Food Chemistry, v.65, n.50, pp.10907-10914
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