活性碳烯物种和蛋白质脂氧化在异构生成中的作用
Anne Nègre-Salvayre1,2, Robert Salvayre1,2
1Inserm Unité Mixte de Recherche (UMR), 1297 Toulouse, Centre Hospitalier Universitaire (CHU) Rangueil-BP 84225, 31432 Toulouse CEDEX 4, France.
Antioxidants (Basel, Switzerland)
|February 24, 2024
概括
通过修改蛋白质,从脂质过氧化驱动动动脉硬化反应性碳类物种 (RCS). 这种蛋白质脂氧化有助于血管功能障碍和泡细胞形成,这是心血管疾病发展的关键过程.
科学领域:
- 心血管生物学 心血管生物学
- 氧化应激和还氧化生物学
- 分子医学是分子医学.
背景情况:
- 动脉样硬化是全球死亡的主要原因,其原因是动脉中富含脂质的斑块形成.
- 氧化还原失衡和脂质过氧化与动脉样硬化病变产生有关,促进炎症和内皮功能障碍.
- 通过脂质氧化产生的反应性碳基物种 (RCS) 修改了关键的生物分子,包括蛋白质.
研究的目的:
- 审查蛋白质脂氧化在动脉样硬化发展中的作用.
- 阐明RCS介导的蛋白质修饰有助于血管功能障碍的机制.
- 要突出脂氧化对参与动脉生成的关键细胞组件的影响.
主要方法:
- 文献综述侧重于研究动脉样硬化中的蛋白质氧化.
- 分析涉及活性碳基物种 (RCS) 和它们的蛋白标的生物化学途径.
- 检查蛋白质氧化对细胞功能和血管健康的影响.
主要成果:
- 蛋白质脂氧化是RCS的非酶性修饰,显著影响细胞结构和功能.
- 氧化低密度脂蛋白 (LDL) 和阿波利波蛋白B (apoB) 的RCS修饰对于泡细胞的形成至关重要.
- 脂氧化会影响许多细胞系统,包括细胞外基质,膜和转录因子,导致血管功能障碍.
结论:
- 蛋白质脂氧化是动脉动脉产生的一个重要因素,加剧了血管功能障碍.
- 了解脂氧化机制对于开发针对动脉样硬化的新疗法至关重要.
- 需要进一步的研究,以充分阐明将脂氧化与心血管疾病联系在一起的复杂途径.
相关概念视频
Radical Autoxidation
2.1K
The oxidation of an organic compound in the presence of air or oxygen is called autoxidation. For example, cumene reacts with oxygen to form hydroperoxide. Autoxidation involves initiation, propagation, and termination steps. Many organic compounds are susceptible to autoxidation—especially ethers in the presence of oxygen, which form hydroperoxides. Even though this reaction is slow, old ether bottles contain small amounts of peroxide, which leads to laboratory explosions during ether...
2.1K
Lipid-derived Compounds in the Human Body
4.4K
Fats and lipids are crucial components in the human body. Some lipid-derived compounds, such as fat-soluble vitamins, eicosanoids, lipoproteins, and glycolipids, also play unique roles to support various biological processes .
Fat-soluble Vitamins
Fat-soluble vitamins, including vitamins A, D, E, and K, are required in minimal quantities, but their deficiencies can lead to severely abnormal physiological conditions. For example, vitamin A deficiency can cause night blindness, dry skin,...
Fat-soluble Vitamins
Fat-soluble vitamins, including vitamins A, D, E, and K, are required in minimal quantities, but their deficiencies can lead to severely abnormal physiological conditions. For example, vitamin A deficiency can cause night blindness, dry skin,...
4.4K
Overview of Lipid Metabolism
1.6K
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...
1.6K
Inflammation
53.4K
Overview
53.4K
Oxidations of Aldehydes and Ketones to Carboxylic Acids
3.9K
Oxidation of aldehydes and ketones results in the formation of carboxylic acids. Aldehydes, bearing hydrogen next to the carbonyl group, are easily oxidized compared to ketones. This is because an aldehydic proton can easily be abstracted during oxidation.
Aldehydes readily undergo oxidation in strong oxidizing agents such as potassium permanganate and chromic acid. The oxidation can also be carried out using mild oxidizing agents such as silver oxide. In fact, aldehydes can be easily oxidized...
Aldehydes readily undergo oxidation in strong oxidizing agents such as potassium permanganate and chromic acid. The oxidation can also be carried out using mild oxidizing agents such as silver oxide. In fact, aldehydes can be easily oxidized...
3.9K
Oxidation of Alcohols
13.1K
In this lesson, the oxidation of alcohols is discussed in depth. The various reagents used for oxidation of primary and secondary alcohols are detailed, and their mechanism of action is provided.
The process of oxidation in a chemical reaction is observed in any of the three forms:
The process of oxidation in a chemical reaction is observed in any of the three forms:
13.1K


