相关实验视频

Updated: Jun 22, 2026

Phosphorus-31 Magnetic Resonance Spectroscopy: A Tool for Measuring In Vivo Mitochondrial Oxidative Phosphorylation Capacity in Human Skeletal Muscle

Phosphorus-31 Magnetic Resonance Spectroscopy: A Tool for Measuring In Vivo Mitochondrial Oxidative Phosphorylation Capacity in Human Skeletal Muscle

Published on: January 19, 2017

在患有线粒体肌病症的人群中对线粒体容量的非侵入性评估

Kevin K McCully¹, Hannah M Bossie², Fran D Kendall³

¹Department of Kinesiology, University of Georgia, Athens, GA 30605, USA.

Muscles (Basel, Switzerland)

|August 4, 2025

概括

骨肌肉的氧化在线粒体肌肉病 (MITO) 中没有受损. 耐力训练改善了线粒体容量,并减少了MITO参与者的疲劳,这表明积极的适应是可能的.

科学领域:

运动生理学运动生理学
线粒体生物学线粒体生物学
神经肌肉疾病神经肌肉疾病

背景情况:

线粒体肌肉病变 (Mitochondrial myopathies,MITO) 通常与骨肌肉氧化能力受损有关.
以前的研究表明,受影响肌肉内的线粒体功能可能存在缺陷.

研究的目的:

测量MITO和有能力 (AB) 控制的个体的骨肌肉线粒体容量.
评估肌肉特异性耐力训练对MITO参与者的线粒体容量和症状的影响.

主要方法:

利用近红外光谱 (NIRS) 评估线粒体容量 (mVO2max) 通过前臂 flexor 肌肉的氧气消耗恢复率.
对比了7名MITO参与者和9名AB对照者 (18-54岁) 的测量结果.
一名MITO参与者在30天内进行了18次炼,并进行了训练前和训练后的评估.

主要成果:

在MITO和AB组之间,没有发现mVO2max,静止氧消耗或初始运动后氧消耗率的显著差异.
与AB对照组相比,在MITO参与者中观察到更大的运动氧气脱度 (p=0.02).
经过训练的MITO参与者显示线粒体容量增加了58%,肌肉特异性耐力增加了24%,疲劳症状减少.

结论:

这项研究没有发现有遗传确认MITO的个体体体内前臂肌肉线粒体容量受损的证据.
观测到的线粒体含量增加可能会补偿MITO中线粒体功能减少.
在MITO患者中,可以实现对耐力训练的积极肌肉适应,这凸显了研究中人口特征化的重要性.

关键词:

凯恩斯-塞尔综合征是什么?梅拉斯 (MELAS) 是一种葡萄酒.护士们的护士们接近红外光谱学近红外光谱学这是骨肌肉的骨架肌肉.

更多相关视频

Assessing Mitochondrial Function in Sciatic Nerve by High-Resolution Respirometry

Assessing Mitochondrial Function in Sciatic Nerve by High-Resolution Respirometry

Published on: May 5, 2022

Author Spotlight: Unveiling Mitochondrial Function and Cellular Metabolic Adaptation in Metabolic Diseases

Author Spotlight: Unveiling Mitochondrial Function and Cellular Metabolic Adaptation in Metabolic Diseases

Published on: October 4, 2024

相关概念视频

Skin Diseases and Disorders

Skin Diseases and Disorders

Skin is the first line of defense and encounters a variety of microbes. Some pathogenic strains are often the cause of a broad range of infections of the skin and other body systems. These conditions can affect people of all ages and may have different causes, including genetic factors, infections, autoimmune reactions, environmental factors, and lifestyle choices.
Gram-positive Staphylococcus spp. and Streptococcus spp. are responsible for many of the most common skin infections. However, many...

Skin Cancer

Skin Cancer

Skin cancer is a type of cancer that occurs when there is an abnormal growth of skin cells, usually triggered by damage to the DNA within the skin cells. It is primarily caused by exposure to ultraviolet (UV) radiation from the sun or artificial sources like tanning beds. Skin cancer is the most common type of cancer worldwide, and its incidence continues to rise.
Basal Cell Carcinoma (BCC): BCC is the most common type of skin cancer, accounting for about 80% of cases. It typically develops in...

Acne Infection

Acne Infection

Acne is a multifactorial skin condition primarily affecting adolescents and young adults, with a global prevalence estimated to exceed 75% in this demographic. The condition is characterized by the formation of comedones (blackheads and whiteheads), papules, pustules, nodules, and, in severe cases, cysts, particularly in areas rich in sebaceous glands such as the face, neck, chest, and back. The pathogenesis involves increased sebum production, follicular hyperkeratinization, colonization by...