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Aronia melanocarpa Anthocyanin Extracts Improve Hepatic Structure and Function in High-Fat Diet-/Streptozotocin-Induced T2DM Mice
Journal of Agricultural and Food Chemistry ( IF 5.7 ) Pub Date : 2022-09-09 , DOI: 10.1021/acs.jafc.2c03286
Jing Chen 1 , Xianjun Meng 1
Affiliation  

Anthocyanins can prevent and ameliorate type 2 diabetes mellitus (T2DM), but its mechanism of action has not been fully established. IKK/NF-κB and JAK/Stat pathways have multiple effects, triggering T2DM. Liver abnormalities in individuals with T2DM are detrimental to glycemic control. We determined whether anthocyanins could improve the liver of individuals with T2DM using IKK/NF-κB and JAK/Stat. We established a T2DM mouse model using a high-fat diet and streptozotocin and then performed Aronia melanocarpa anthocyanin extracts’ (AMAEs’) administration for 5 weeks. AMAEs improved blood glucose and hyperinsulinemia of T2DM mice. In the liver of AMAE-administered T2DM mice, ROS, IKKβ/NF-κB p65, and JAK2/Stat3/5B signalings were down-regulated, thereby reducing the suppressor of cytokine signaling 3 (SOCS3), iNOS, and inflammatory mediators. AMAE-improved hyperinsulinemia also down-regulated SOCS3 by decreasing p-Stat5B in hepatocytes. AMAEs enhanced glucose uptake and conversion and decreased hepatocyte enlargement and inflammatory cells in the liver of T2DM mice. These indicated that AMAEs could alleviate oxidative stress, insulin resistance, inflammation, and tissue damage in the liver of T2DM mice through inhibiting NF-κB p65 and Stat3/5B.

中文翻译:

Aronia melanocarpa 花青素提取物改善高脂饮食/链脲佐菌素诱导的 T2DM 小鼠的肝脏结构和功能

花青素可预防和改善2型糖尿病(T2DM),但其作用机制尚未完全确立。IKK/NF-κB 和 JAK/Stat 通路具有多种作用,可触发 T2DM。T2DM 患者的肝脏异常不利于血糖控制。我们使用 IKK/NF-κB 和 JAK/Stat 确定花青素是否可以改善 T2DM 患者的肝脏。我们使用高脂饮食和链脲佐菌素建立了 T2DM 小鼠模型,然后进行了Aronia melanocarpa花青素提取物(AMAEs)给药 5 周。AMAEs 改善了 T2DM 小鼠的血糖和高胰岛素血症。在 AMAE 给药的 T2DM 小鼠的肝脏中,ROS、IKKβ/NF-κB p65 和 JAK2/Stat3/5B 信号传导被下调,从而减少了细胞因子信号传导 3 (SOCS3)、iNOS 和炎症介质的抑制因子。AMAE 改善的高胰岛素血症也通过降低肝细胞中的 p-Stat5B 来下调 SOCS3。AMAEs 增强了 T2DM 小鼠肝脏中的葡萄糖摄取和转化,并减少了肝细胞增大和炎症细胞。这些表明AMAEs可以通过抑制NF-κB p65和Stat3/5B来缓解T2DM小鼠肝脏的氧化应激、胰岛素抵抗、炎症和组织损伤。
更新日期:2022-09-09
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