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Updated: Jun 17, 2026

High-Resolution Respirometry to Assess Bioenergetics in Cells and Tissues Using Chamber- and Plate-Based Respirometers
Published on: October 26, 2021
Gases in the mitochondria
Pamela B L Pun1, Jia Lu, Enci M Kan
1Combat Care Laboratory, Defence Medical and Environmental Research Institute, DSO National Laboratories, 27 Medical Drive, #12-00, Singapore 117510, Singapore. u0402652@alumni.nus.edu.sg <u0402652@alumni.nus.edu.sg>
Abstract:
Gasomodulators - nitric oxide, carbon monoxide and hydrogen sulphide - are important physiological mediators that have been implicated in disorders such as neurodegeneration and sepsis. Some of their biological functions involve the mitochondria. In particular, their inhibition of cytochrome c oxidase has received much attention as this can cause energy depletion and cytotoxicity. However, reports that cellular energy production and cell survival are maintained even in the presence of gasomodulators are not uncommon. In both cases, modulation of mitochondrial targets by the gasomodulators appears to be an important event. We provide an overview of the effects of the gasomodulators on the mitochondria.
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