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Dietary Tomato Pectin Attenuates Hepatic Insulin Resistance and Inflammation in High-Fat-Diet Mice by Regulating the PI3K/AKT Pathway

文献类型: 外文期刊

作者: Sun, Jing 1 ; Wu, Kongyan 1 ; Wang, Pan 2 ; Wang, Yubin 2 ; Wang, Dan 2 ; Zhao, Wenting 2 ; Zhao, Yuanyuan 2 ; Zhang, Chunhong 1 ; Zhao, Xiaoyan 2 ;

作者机构: 1.Shenyang Agr Univ, Coll Food Sci, Shenyang 110866, Peoples R China

2.Beijing Acad Agr & Forestry Sci, Beijing Key Lab Agr Prod Fruits & Vegetables Prese, Key Lab Vegetable Postharvest Proc, Minist Agr & Rural Affairs,Inst Agrifood Proc & Nu, 50 Zhanghua St, Beijing 100097, Peoples R China

关键词: tomato pectin; insulin resistance; PI3K/AKT pathway

期刊名称:FOODS ( 影响因子:5.2; 五年影响因子:5.5 )

ISSN:

年卷期: 2024 年 13 卷 3 期

页码:

收录情况: SCI

摘要: Chronic metabolic disease is a serious global health issue, which is accompanied by impaired insulin resistance. Tomato pectin (TP) is a naturally soluble complex hetero-polysaccharide with various biological functions. However, the impact of TP on hepatic insulin resistance in a high-fat diet (HFD) and its potential mechanism remains largely unknown. The results revealed that TP treatment significantly decreased the liver weight, hepatic fat accumulation and hepatic injury in HFD-fed mice. TP also improved fasting blood glucose levels and glucose tolerance in HFD-fed mice. The underlying mechanisms involved in the inflammation, oxidative stress and insulin signaling in the liver were also investigated by RT-qPCR and western blot, which indicated that TP ameliorated hepatic insulin resistance by regulating the PI3K/AKT/GSK-3 beta pathway, increasing the expression of GLUT4, decreasing the expression of PECK and G6P as well as restoring antioxidant activities and suppressing the inflammation statues in HFD-fed mice. Our data showed that dietary TP has profound effects on hepatic insulin resistance, inflammation and oxidative stress, demonstrating that TP might be a promising therapeutic agent against insulin resistance and related chronic metabolic disease.

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