亚斯丁可以通过促进线粒体生物发生来缓解氧化应激和骨肌损伤
Chengmu Li1, Yining Yan2, Kai Wang2
1Department of Orthopaedics, The Second Affiliated Hospital of Army Military Medical University, Chongqing, China.
Frontiers in veterinary science
|September 18, 2025
概括
亚斯丁 (Asta) 通过增强线粒体功能和减少炎症,保护骨肌肉免受高脂肪饮食损伤. 这种抗氧化剂促进肌肉健康和在代谢压力下的功能.
科学领域:
- 线粒体生物学 线粒体生物学
- 骨肌肉生理学 骨肌肉生理学
- 营养生物化学 营养生物化学
背景情况:
- 高脂肪饮食 (HFD) 诱导代谢压力,损害线粒体和骨肌肉.
- 氧化应激,炎症和脂质积累是导致HFD引起的肌肉功能障碍的关键因素.
研究的目的:
- 为了研究HFD对骨肌肉线粒体的有害影响.
- 评估阿斯塔桑丁 (Asta) 对HFD诱导的损伤的保护潜力.
- 探索阿斯塔对线粒体生物发生,氧化应激和炎症的影响.
主要方法:
- 使用HFD养的小鼠和棕酸刺激的C2C12细胞治疗Asta.
- 评估了骨肌功能,病理,线粒体超结构,炎症和氧化应激.
- 采用行为测试,组织学,qPCR,西式涂抹,TEM和生物化学测试.
主要成果:
- 阿斯塔减轻了骨肌损伤,并改善了HFD养小鼠的功能.
- 阿斯塔抑制了炎症基因表达,并减少了脂质积累和线粒体损伤在体外和体内.
- 阿斯塔增强了线粒体生物发生,抗氧化活性和ATP产生,同时抑制了线粒体裂变和脂质过氧化.
结论:
- 阿斯塔山丁可以减轻氧化压力,脂质积累和骨肌肉炎症.
- 阿斯塔促进线粒体生物发生,在代谢压力下保持肌肉结构和功能.
- 阿斯塔丁在代谢压力条件下对骨肌肉的保护具有治疗潜力.
更多相关视频
08:12Author Spotlight: Unveiling Mitochondrial Function and Cellular Metabolic Adaptation in Metabolic Diseases
Published on: October 4, 2024
2.4K
09:40Phosphorus-31 Magnetic Resonance Spectroscopy: A Tool for Measuring In Vivo Mitochondrial Oxidative Phosphorylation Capacity in Human Skeletal Muscle
Published on: January 19, 2017
12.2K
相关概念视频
Muscle Recovery and Fatigue
4.0K
Muscle fatigue refers to the decline in a muscle's ability to maintain the force of contraction after prolonged activity. It primarily stems from changes within muscle fibers. Even before experiencing muscle fatigue, one may feel tired and have the urge to stop the activity. This response, known as central fatigue, occurs due to changes in the central nervous system, namely the brain and spinal cord. While there is no single mechanism that induces fatigue, it may serve as a protective...
4.0K
Electron Transport Chain: Complex I and II
18.5K
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...
18.5K
Mitochondria
19.6K
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,...
19.6K
Mitochondrial Membranes
16.6K
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,...
16.6K
Sulfur Assimilation
321
Sulfur is an essential element in biological systems, contributing to synthesizing key biomolecules, including amino acids such as cysteine and methionine, and cofactors such as coenzyme A and biotin. Microorganisms primarily assimilate sulfur as sulfate (SO₄²⁻) from the environment, which must undergo a series of biochemical transformations before it can be incorporated into cellular components. As sulfate is highly oxidized, it must undergo assimilatory sulfate reduction to...
321
