内分泌糖脂代谢与脑老化教育部重点实验室/山东第一医科大学附属省立医院内分泌代谢病科,济南 250021
Received:12 November 2024,
Revised:2025-01-25,
Accepted:13 February 2025,
Published:28 September 2025
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于静静,姚振宇,周象宁,等.胰岛素抵抗状态下胰高糖素对肝脏代谢的调节机制[J].重庆医科大学学报,2025,50(9):1178-1186.
Yu Jingjing,Yao Zhenyu,Zhou Xiangning,et al.Mechanism of glucagon regulating hepatic metabolism in the state of insulin resistance[J].Journal of Chongqing Medical University,2025,50(9):1178-1186.
于静静,姚振宇,周象宁,等.胰岛素抵抗状态下胰高糖素对肝脏代谢的调节机制[J].重庆医科大学学报,2025,50(9):1178-1186. DOI: 10.13406/j.cnki.cyxb.003810.
Yu Jingjing,Yao Zhenyu,Zhou Xiangning,et al.Mechanism of glucagon regulating hepatic metabolism in the state of insulin resistance[J].Journal of Chongqing Medical University,2025,50(9):1178-1186. DOI: 10.13406/j.cnki.cyxb.003810.
胰高糖素和胰岛素是血糖的主要调节因子,共同维持机体能量代谢稳态,但是二者相互调节和影响的内在机制复杂且不明确。肝脏是胰岛素和胰高糖素共同的重要靶器官,在维持葡萄糖和脂质稳态中发挥重要作用。胰岛素抵抗常伴随肝脏糖脂代谢异常,进而可能影响肝脏胰高糖素的功能活性。肝脏和胰腺之间存在胰高糖素调节相关的反馈回路,称为“肝-α细胞轴”,可能对于理解胰高糖素在胰岛素抵抗状态下的代谢作用至关重要。除了调节葡萄糖稳态外,胰高糖素生理作用已扩展至脂质和氨基酸代谢。因此,胰高糖素代谢调节异常可能进一步导致机体糖、脂以及氨基酸代谢稳态的失衡。在本综述,主要概述了在生理以及胰岛素抵抗状态下,胰高糖素在肝脏葡萄糖稳态、脂质代谢和氨基酸代谢中的调节机制。
Glucagon and insulin are the main regulatory factors for blood glucose and jointly maintain the homeostasis of energy metabolism in the body,but the internal mechanism of the mutual regulation and influence between them remains complex and unclear. The liver is one of the key target organs for both insulin and glucagon,playing a crucial role in maintaining the homeostasis of glucose and lipid metabolism. Insulin resistance is often accompanied by abnormal glucose and lipid metabolism in the liver,which may affect the functional activity of glucagon in the liver. There is a glucagon-related feedback loop between the liver and the pancreas,known as the “liver-α-cell axis”,which may play a critical role in understanding the metabolic effect of glucagon in the state of insulin resistance. In addition to the regulation of glucose homeostasis,the physiological action of glucagon has been extended to lipid and amino acid metabolism. Therefore,abnormal regulation of glucagon metabolism may further lead to the imbalance of glucose,lipid,and amino acid metabolism. This article briefly reviews the regulatory mechanism of glucagon in liver glucose homeostasis,lipid metabolism,and amino acid metabolism in physiological condition and the state of insulin resistance.
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