相关实验视频
Updated: Jun 14, 2025

08:48
Author Spotlight: Decoding Mitochondrial Aging
Published on: June 30, 2023
3.7K
在MASLD中改变了线粒体功能:关键特征和有前途的治疗方法
Tatjana Radosavljevic1, Milica Brankovic2, Janko Samardzic2
1Institute of Pathophysiology "Ljubodrag Buba Mihailovic", Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia.
Antioxidants (Basel, Switzerland)
|August 29, 2024
概括
与代谢功能障碍相关的脂肪性肝病 (MASLD) 涉及线粒体功能障碍,影响肝脏健康. 增强线粒体功能为MASLD和代谢相关脂肪肝炎 (MASH) 提供了一个有前途的治疗途径.
科学领域:
- 肝病学和代谢障碍 肝病和代谢障碍
- 线粒体生物学和疾病
背景情况:
- 与代谢功能障碍相关的脂肪性肝病 (MASLD),以前称为非酒精性脂肪性肝病 (NAFLD),是一种肝病的范围,其全球流行率越来越高,特别是在代谢综合征患者中.
- MASLD的发病涉及复杂的因素,包括代谢失调,炎症,氧化应激,遗传倾向,以及关键的线粒体功能障碍.
研究的目的:
- 阐明线粒体功能障碍在MASLD进展中的关键作用.
- 探索针对MASLD和代谢相关脂肪肝炎 (MASH) 治疗的线粒体功能的新和现有治疗策略.
主要方法:
- 综述最近的科学文献,重点关注MASLD病原和线粒体功能障碍.
- 治疗干预的分析,包括生活方式的修改,药理学剂,和新兴的策略,如基因编辑.
主要成果:
- 线粒体功能障碍是MASLD从肥胖症进展到MASH等更严重形式的关键驱动因素.
- 线粒体功能的治疗增强,以及生活方式的改变,显示了MASLD管理的前景.
- 美国食品和药物管理局批准了resmetirom用于纤维化MASH,这意味着治疗进步.
结论:
- 更深入地了解与MASLD相关的线粒体功能障碍对于开发有效的治疗方法至关重要.
- 需要创新方法,包括药物重新定位和针对新途径,以应对日益增长的全球MASLD负担.
- 涉及生活方式干预和向治疗的联合策略有可能改善患者的治疗结果.
相关概念视频
Electron Transport Chain: Complex I and II
12.3K
The mitochondrial electron transport chain (ETC) is the main energy generation system in the eukaryotic cells. However, mitochondria also produce cytotoxic reactive oxygen species (ROS) due to the large electron flow during oxidative phosphorylation. While Complex I is one of the primary sources of superoxide radicals, ROS production by Complex II is uncommon and may only be observed in cancer cells with mutated complexes.
ROS generation is regulated and maintained at moderate levels necessary...
ROS generation is regulated and maintained at moderate levels necessary...
12.3K
Mitochondria
11.5K
Mitochondria are eukaryotic cellular organelles that are known to produce energy through a process called oxidative phosphorylation. Besides their primary function, mitochondria are involved in various cellular processes, including cell growth, differentiation, signaling, metabolism, and senescence. Age-related changes cause a decline in mitochondrial quality and integrity due to increased mitochondrial mutations and oxidative damage. Thus, aging can severely impact mitochondrial functions,...
11.5K
Mitochondrial Membranes
9.3K
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,...
9.3K
Translocation of Proteins into the Mitochondria
3.1K
Mitochondrial precursors are translocated to the internal subcompartments via independent mechanisms involving distinct protein machineries called translocases.
Sorting of outer membrane proteins:
Mitochondrial outer membrane proteins are of two types: the transmembrane, beta-barrel porins, and the membrane-anchored, alpha-helical proteins. Beta-barrel porin precursors are translocated by the TOM complex and inserted into the outer mitochondrial membrane by the SAM complex. In contrast,...
Sorting of outer membrane proteins:
Mitochondrial outer membrane proteins are of two types: the transmembrane, beta-barrel porins, and the membrane-anchored, alpha-helical proteins. Beta-barrel porin precursors are translocated by the TOM complex and inserted into the outer mitochondrial membrane by the SAM complex. In contrast,...
3.1K

