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Difference between revisions of "Tretter 2014 Methods Enzymol"

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Latest revision as of 20:39, 24 September 2021

Publications in the MiPMap
Tretter L, Ambrus A (2014) Measurement of ROS homeostasis in isolated mitochondria. Methods Enzymol 547:199-223.

ยป PMID:25416360

Tretter L, Ambrus A (2014) Methods Enzymol

Abstract: In this chapter, we describe the currently most advanced methods applied for the quantitative assessment of ROS homeostasis inside the mitochondrion. These techniques are of particular interest in the field of oxidative stress. After discussing the importance of quantifying mitochondrial ROS homeostasis, three major aspects of this phenomenon and the pertinent methodologies for detection are delineated in detail. First the most important methods, based on fluorimetric or spectrophotometric approaches, for the detection of mitochondrial ROS are described. Elimination of ROS generated inside the mitochondrion is another crucial mechanism that also needs to be quantified accurately to estimate the antioxidant capacity of mitochondria under specific conditions. Since ROS generation and elimination manifest in concert, there needs to exist independent methods for the estimation of the net effect. Such a sensitive biochemical marker in the mitochondrion is aconitase, a citric acid cycle enzyme which is greatly sensitive to ROS. We describe two procedures for the precise determination of aconitase activity. A few auxiliary techniques and good practices having relevance in the successful accomplishment of the more delicate approaches are also mentioned. All other relevant technical considerations including advantages/disadvantages of the various methods and the most common artifacts are also discussed.

Cited by

  • Komlรณdi T, Sobotka O, Gnaiger E (2021) Facts and artefacts on the oxygen dependence of hydrogen peroxide production using Amplex UltraRed. Bioenerg Commun 2021.4. https://doi:10.26124/BEC:2021-0004

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