上睑下垂
胰岛素抵抗
脂肪细胞
背景(考古学)
化学
体内
人参皂甙
内科学
内分泌学
药理学
肥胖
细胞凋亡
生物
医学
脂肪组织
生物化学
程序性细胞死亡
生物技术
替代医学
古生物学
病理
人参
出处
期刊:Diabetes
[American Diabetes Association]
日期:2020-06-01
卷期号:69 (Supplement_1)
摘要
Pyroptosis plays a critical role in the development of obesity-associated inflammation and insulin resistantance (IR). Ginsenoside Rb2 (Rb2), the main component of ginsenosides has drawn appreciable interest in the context of glucose metabolism. In the present study, we investigated Rb2-mediated protection against obesity-induced IR and the related mechanisms. Rb2 could significantly reduce high-fat diet (HFD)-induced body weight changes, fat accumulation and IR. In addition, Rb2 treatment inhibited pyroptosis-related genes and proteins,such as caspase-1, ASC, NLRP3, IL-1β and GSDMD in HFD-fed mice. The above results were recapitulated in 3T3-L1 adipocytes and demonstrated that Rb2 improved TNF-α induced IR and pyroptosis in 3T3-L1 adipocytes. Furthermore, Rb2 reduced the phosphorylation levels of p65 and IκBα both in vitro and in vivo. The present study showed that Rb2, which could serve as a promising agent for the treatment of IR and obesity, ameliorated IR by inhibiting pyroptosis in adipocytes in vivo and in vitro through the NF-κB pathway. Disclosure X. Gu: None. Funding Zhejiang Provincial Natural Science Foundation (LY20H070003, LQ12H07003); Wenzhou Science and Technology Bureau (Y20170047); National Key Research and Development Program of China (2016YFC1305202)
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