线粒体代谢物可预测糖尿病患者的不良心血管事件
Jessica A Regan1,2, Robert J Mentz2,3, Maggie Nguyen1
1Duke Molecular Physiology Institute, Durham, North Carolina, USA.
JCI insight
|August 8, 2023
概括
与线粒体功能障碍相关的代谢物,如中链甲,在2型糖尿病中预测主要不良心血管事件 (MACE). 这些生物标志物可以改善心血管风险预测,并突出显示新的机制.
科学领域:
- 心血管医学 心血管医学
- 代谢学 代谢学 代谢学
- 内分泌学 在内分泌学.
背景情况:
- 2型糖尿病 (T2D) 与异质的重大不良心血管事件 (MACE) 风险有关.
- 导致这种风险差异的潜在代谢机制尚未完全理解.
研究的目的:
- 为了研究是否循环的代谢物反映线粒体功能障碍可以预测T2D患者的事件MACE.
- 探索这些代谢物的潜力作为T2D心血管风险分层的生物标志物.
主要方法:
- 在两个独立的队列 (TECOS和EXSCEL) 中,针对60种血代谢物的向质谱分析.
- 主要成分分析以确定与MACE相关的代谢物模式.
- 进行元分析和多变量建模,以评估与MACE的代谢物相关性.
- 在第三个队列 (CATHGEN) 中评估代谢物对心血管风险预测模型的影响.
主要成果:
- 在发现和验证队列中,一种含有中链甲酸 (MCAC) 的代谢因子与MACE风险增加有关.
- 分析揭示了长链甲酸 (LCACs) 和二氧化甲酸与MACE的关联.
- 这些代谢物在多变量模型中仍然是显著的预测因素,并且在异胺治疗时发生了有利的变化.
- 在CATHGEN队列中,九种特定代谢物 (MCACs,LCACs和一种二氧化) 预测了MACE,它们被添加到临床模型中改善了风险重新分类.
结论:
- 在经历MACE的T2D个体中,循环中的代谢物表明 mitochondrial 脂肪酸氧化失调的水平升高.
- 这些代谢生物标志物显示出改善T2D心血管风险预测的潜力.
- 这些发现突出了新的代谢途径和潜在的治疗目标,以减少T2D中心血管风险.
更多相关视频
05:58Mouse Electroacupuncture Fixation Device Fabrication for Electroacupuncture Pretreatment in Diabetic Cardiomyopathy Mouse Model
Published on: April 18, 2025
223
12:32High-resolution Respirometry to Measure Mitochondrial Function of Intact Beta Cells in the Presence of Natural Compounds
Published on: January 23, 2018
12.1K
相关概念视频
01:30Coronary Artery Disease I: Introduction
20
Coronary Artery Disease (CAD): An Overview with Scientific InsightsCoronary Artery Disease (CAD), often referred to as C-A-D, is a prevalent blood vessel disorder classified under the broader category of atherosclerosis. Atherosclerosis is a pathological process characterized by the hardening and narrowing of arteries due to the accumulation of atherosclerotic plaques. These plaques are composed of cholesterol, fatty substances, inflammatory cells, calcium, and fibrin, reducing blood flow to...
20
01:24Overview of Lipid Metabolism
1.8K
Lipid metabolism is a crucial process in the human body that involves the synthesis and degradation of lipids. This process is essential for energy production, cell membrane formation, and hormone production, among other functions.
Lipolysis: The Breakdown of Lipids:
Lipolysis is the process of breaking down lipids, particularly triglycerides, into glycerol and fatty acids. This process typically occurs in the adipose tissue and is triggered by various hormones, including glucagon and...
Lipolysis: The Breakdown of Lipids:
Lipolysis is the process of breaking down lipids, particularly triglycerides, into glycerol and fatty acids. This process typically occurs in the adipose tissue and is triggered by various hormones, including glucagon and...
1.8K
01:45Mitochondrial Membranes
11.6K
A single mitochondrion is a bean-shaped organelle enclosed by a double-membrane system. The outer membrane of mitochondria is smooth and contains many porins - the integral membrane transporters. Porins enable free diffusion of ions and small uncharged molecules through the outer mitochondrial membrane but limit the transport of molecules larger than 5000 Daltons. Further, the outer mitochondrial membrane forms a unique structure called membrane contact sites with other subcellular organelles,...
11.6K
01:19Overview of Carbohydrate Metabolism
1.2K
Carbohydrate metabolism is a fundamental biochemical process that ensures a constant supply of energy to living cells. The most important carbohydrate is glucose, which can be broken down via glycolysis to enter into the Krebs cycle and eventually lead to the production of ATP through oxidative phosphorylation.
Glucose transport into cells is facilitated by a family of transport proteins called GLUT (Glucose Transporters). GLUT4 is the primary glucose transporter for insulin-stimulated glucose...
Glucose transport into cells is facilitated by a family of transport proteins called GLUT (Glucose Transporters). GLUT4 is the primary glucose transporter for insulin-stimulated glucose...
1.2K