类 Ester 的使用改善了肥胖小鼠的血糖水平
Seyed Amirhossein Tabatabaei Dakhili1,2, Kunyan Yang1,2, Cassandra A A Locatelli3,4
1Faculty of Pharmacy and Pharmaceutical Sciences, University of Alberta, Edmonton, Alberta, Canada.
American journal of physiology. Cell physiology
|August 14, 2023
概括
急性乙烯乙烯施用改善了肥胖小鼠的葡萄糖耐受性,这与预期相反. 这种效应独立于肌肉氧化,表明对肥胖患者的葡萄糖调节有直接益处.
科学领域:
- 代谢生理学 代谢生理学
- 内分泌学 在内分泌学.
- 营养科学 营养科学
背景情况:
- 子,如β-基酸盐 (βOHB),在禁食期间作为替代ATP基质.
- 骨肌肉氧化与与肥胖有关的高血糖症有关.
- 抑制酸CoA:3-酸CoA转移酶 (SCOT) 可以改善高血糖.
研究的目的:
- 测试循环水平的增加是否通过肌肉氧化恶化葡萄糖平衡.
- 为了研究外源基乙烯施用对瘦身和肥胖小鼠葡萄糖耐受性的影响.
- 为了检查子对孤立小岛的胰岛素分泌的影响.
主要方法:
- 在C57BL/6J小鼠中,高脂肪饮食诱导的肥胖模型.
- 口服乙醇 (KE) 或安慰剂,然后进行葡萄糖耐受性测试.
- 孤立小岛外围试验测量胰岛素分泌.
主要成果:
- 外源KE的使用增加了循环中的βOHB水平.
- 在接受KE治疗的肥胖小鼠中,葡萄糖耐受性得到改善,独立于肌肉SCOT活动.
- βOHB的R-同位素显著增加了肥胖小鼠的孤立岛屿中的胰岛素分泌.
结论:
- 循环子的急性升高在肥胖中促进降血糖效应.
- 降血糖效应并非由增加的骨肌肉氧化作用介导.
- 需要进一步的研究来澄清β细胞氧化在胰岛素分泌中的作用.
相关概念视频
Hypoglycemia and Glucagon
297
Without prolonged fasting, healthy individuals maintain blood glucose levels above 3.5 mM due to a well-adapted neuroendocrine counterregulatory system that effectively prevents acute hypoglycemia, a potentially life-threatening condition. The primary clinical scenarios for hypoglycemia encompass diabetes treatment, inappropriate production of endogenous insulin or insulin-like substances by tumors, and the use of glucose-lowering agents in non-diabetic individuals. Notably, hypoglycemia in the...
297
Oral Hypoglycemic Agents: Biguanides and Glitazones
234
Biguanides, particularly metformin (Glucophage), are insulin sensitizers that enhance glucose uptake, thereby reducing insulin resistance. Unlike sulfonylureas, metformin doesn't prompt insulin secretion, which helps to curb hypoglycemia risk. Metformin is beneficial in treating conditions like polycystic ovary syndrome due to its insulin-resistance reduction capability. The drug's primary action involves curtailing hepatic gluconeogenesis, a significant contributor to high blood...
234
Oral Hypoglycemic Agents: α-Glucosidase Inhibitors
206
α-glucosidase inhibitors, including acarbose (Precose), miglitol (Glyset), and voglibose (Voglib) (primarily available in Asia), are drugs that control blood sugar levels by delaying the digestion of starch and disaccharides. They achieve this by inhibiting α-glucosidase enzymes in the intestine, which slow the absorption of carbohydrates in the intestine, which in turn leads to a prolonged release of the glucoregulatory hormone GLP-1 from intestinal L-cells.
Acarbose and miglitol are...
Acarbose and miglitol are...
206


