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通过高分辨率呼吸测定法测量人和小鼠骨骼肌纤维中的线粒体呼吸
通过高分辨率呼吸测定法测量人和小鼠骨骼肌纤维中的线粒体呼吸
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Measurement of Mitochondrial Respiration in Human and Mouse Skeletal Muscle Fibers by High-Resolution Respirometry

通过高分辨率呼吸测定法测量人和小鼠骨骼肌纤维中的线粒体呼吸

Full Text
2,298 Views
08:12 min
October 4, 2024

DOI: 10.3791/66834-v

Terri A. Pietka1,2, Rita T. Brookheart1,3

1John T. Milliken Department of Medicine, Division of Nutritional Sciences and Obesity Medicine,Washington University School of Medicine, 2Nutrition and Obesity Research Center, Cellular and Molecular Biology Core,Washington University School of Medicine, 3Nutrition and Obesity Research Center, Animal Model Research Core,Washington University School of Medicine

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Please note that some of the translations on this page are AI generated. Click here for the English version.

在这里,我们描述了一种测量来自人或小鼠肌肉的新鲜透化骨骼肌纤维中线粒体氧化磷酸化的综合方法。该方法允许实时量化线粒体呼吸并评估燃料偏好和代谢灵活性,同时保留现有的线粒体网络和膜完整性。

我们的研究重点是代谢疾病中代谢和应激反应的交叉点,这是华盛顿大学 NORD 项目的一个主要主题。通过我们 NORD 核心之间的协同作用,我们能够通过跨学科和协作的方法解决营养代谢和疾病中的复杂问题。传统的线粒体呼吸测定检查了孤立的线粒体。

分离线粒体非常耗时,并且会损害线粒体外膜的完整性。此外,线粒体不单独执行,而是细胞代谢适应动态网络的一部分。我们的协议维护这个网络以提供线粒体功能的生理相关评估。

我们的重点已扩展到确定对健康和疾病很重要的代谢定制调节因子。我们提出的关键问题包括,这些调节因子(如 site-1 蛋白酶)在不同的组织类型中是否同样重要?它们的生理意义是什么?

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