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    Redox signaling implication in cell adaptation to hypoxia has been studied for a long time, both in long-term and acute responses. However, measurement of superoxide and other reactive oxygen species (ROS) in acute hypoxia is technically challenging, for example, because of the need to overcome the effect of cell reoxygenation before measurement.Here we describe a method we have developed for measuring superoxide production in acute hypoxia using the fluorescent probe dihydroethidine in fixed-cell microscopy. The method allows measuring the kinetics of superoxide production (or other ROS with the appropriate probes) by incubating the probe in different time windows during hypoxia incubation.


    Pablo Hernansanz-Agustín, Carmen Choya-Foces, Antonio Martínez-Ruiz. Measurement of Superoxide Production in Acute Hypoxia by Fixed-Cell Microscopy. Methods in molecular biology (Clifton, N.J.). 2021;2202:43-50

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    PMID: 32857344

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