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Li J, He J, He H, Wang X, Zhang S, He Y, Zhang J, Yuan C, Wang H, Xu D, Pan C, Yu H, Zou K. Sweet triterpenoid glycoside from Cyclocarya paliurus ameliorates obesity-induced insulin resistance through inhibiting the TLR4/NF-κB/NLRP3 inflammatory pathway. Curr Res Food Sci 2024; 8:100677. [PMID: 38303998 PMCID: PMC10831159 DOI: 10.1016/j.crfs.2024.100677] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Revised: 11/19/2023] [Accepted: 01/08/2024] [Indexed: 02/03/2024] Open
Abstract
Our prophase studies have manifested that the sweet triterpenoid glycoside from the leaves of Cyclocarya paliurus (CPST) effectively improved the disorders of glucolipid metabolism in vitro and in patients. The current purpose was to further detect its mechanisms involved. The results demonstrated that CPST could ameliorate high-fat diet (HFD)-induced insulin resistance (IR), which was linked to reducing HFD-induced mice's body weight, serum glucose (GLUO), triglyceride (TG), total cholesterol (T-CHO) and low-density lipoprotein cholesterol (LDL-C), lowering the area under the oral glucose tolerance curve and insulin tolerance, elevating the percentage of brown adipose, high-density lipoprotein cholesterol (HDL-C), reducing fat droplets of adipocytes in interscapular brown adipose tissue (iBAT) and cross-sectional area of adipocytes. Further studies manifested that CPST obviously downregulated TLR4, MyD88, NLRP3, ASC, caspase-1, cleased-caspase-1, IL-18, IL-1β, TXNIP, and GSDMD protein expressions and p-NF-кB/NF-кB ratio in iBAT. These aforementioned findings demonstrated that CPST ameliorated HFD induced IR by regulating TLR4/NF-κB/NLRP3 signaling pathway, which in turn enhancing insulin sensitivity and glucose metabolism.
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Affiliation(s)
- Jie Li
- Hubei Key Laboratory of Natural Products Research and Development & Yichang Key Laboratory of Development and Utilization of Health Products with Drug and Food Homology, China Three Gorges University, Yichang, Hubei, 443002, China
| | - Junyu He
- Basic Medical College of China Three Gorges University, Yichang, Hubei, 443002, China
| | - Haibo He
- Hubei Key Laboratory of Natural Products Research and Development & Yichang Key Laboratory of Development and Utilization of Health Products with Drug and Food Homology, China Three Gorges University, Yichang, Hubei, 443002, China
- Hubei Key Laboratory of Wudang Local Chinese Medicine Research, Hubei University of Medicine, Shiyan, Hubei, 442000, China
| | - Xiao Wang
- Hubei Key Laboratory of Natural Products Research and Development & Yichang Key Laboratory of Development and Utilization of Health Products with Drug and Food Homology, China Three Gorges University, Yichang, Hubei, 443002, China
| | - Shuran Zhang
- Hubei Key Laboratory of Natural Products Research and Development & Yichang Key Laboratory of Development and Utilization of Health Products with Drug and Food Homology, China Three Gorges University, Yichang, Hubei, 443002, China
| | - Yumin He
- Basic Medical College of China Three Gorges University, Yichang, Hubei, 443002, China
| | - Jihong Zhang
- Traditional Chinese Medicine Hospital of China Three Gorges University & Hubei Clinical Research Center for Functional Digestive Diseases of Traditional Chinese Medicine, Yichang, Hubei, 443001, China
| | - Chengfu Yuan
- Basic Medical College of China Three Gorges University, Yichang, Hubei, 443002, China
| | - HongWu Wang
- Department and Institute of Infectious Disease, Tongji Hospital, Tongji Medical College, Hua Zhong University of Science and Technology, Wuhan, 430030, China
| | - Daoxiang Xu
- Seventh People's Hospital of Wenzhou, Wenzhou, Zhejiang, 325005, China
| | - Chaowang Pan
- Medical College of Ezhou Vocational University, Ezhou, Hubei, 436000, China
| | - Huifan Yu
- Hubei Key Laboratory of Wudang Local Chinese Medicine Research, Hubei University of Medicine, Shiyan, Hubei, 442000, China
| | - Kun Zou
- Hubei Key Laboratory of Natural Products Research and Development & Yichang Key Laboratory of Development and Utilization of Health Products with Drug and Food Homology, China Three Gorges University, Yichang, Hubei, 443002, China
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