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Updated: Jun 10, 2026
Using Isolated Mitochondria from Minimal Quantities of Mouse Skeletal Muscle for High throughput Microplate Respiratory Measurements
Published on: October 30, 2015
Measurement of mitochondrial ROS production
Abstract:
The significance of reactive oxygen species (ROS) as aggravating or primary factors in numerous pathologies is widely recognized, with mitochondria being considered the major intracellular source of ROS. It is not yet possible to routinely measure mitochondrial ROS in animals or cultured cells with a reasonable degree of certainty. However, at the level of isolated mitochondria, one can easily monitor and quantify the rate of ROS production, identify major sites of ROS production, and compare the rates of ROS production in mitochondria isolated from normal and diseased tissue. In this chapter, we describe in detail the most recent and reliable method to measure mitochondrial ROS as the rate of H2O2 emission. This method may be employed with minimal modifications to measure H2O2 production by mitochondria isolated from various tissues and under a wide variety of experimental conditions.
Insights
Mitochondria are key sources of reactive oxygen species (ROS), implicated in disease. This study details a reliable method for measuring mitochondrial hydrogen peroxide (H2O2) emission, aiding pathology research.
Area of Science:
- Biochemistry
- Cell Biology
- Pathology
Background:
- Reactive oxygen species (ROS) play a critical role in numerous pathologies.
- Mitochondria are the primary intracellular source of ROS production.
- Accurate measurement of mitochondrial ROS in vivo remains challenging.
Purpose of the Study:
- To present a reliable and detailed method for quantifying mitochondrial ROS production.
- To enable comparative studies of ROS production in normal versus diseased tissues.
- To facilitate research into the role of mitochondrial ROS in various pathological conditions.
Main Methods:
- Detailed description of a method to measure mitochondrial ROS.
- Quantification of hydrogen peroxide (H2O2) emission from isolated mitochondria.
- Adaptability of the method for diverse tissues and experimental conditions.
Main Results:
- The described method allows for precise monitoring of mitochondrial ROS production rates.
- It enables identification of primary sites of ROS generation within mitochondria.
- The technique facilitates comparison of ROS production between healthy and diseased mitochondrial samples.
Conclusions:
- The presented H2O2 emission assay is a robust tool for studying mitochondrial ROS.
- This method can be applied across various tissues and experimental settings.
- It offers a reliable approach to investigate mitochondrial dysfunction in disease.
