Bioimaging technique to observe skeletal muscle metabolites in vivo

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Using an in vivo bioimaging model and microinjection technique, we tested homeostasis of intracellular when low pH solution was loaded in single fiber by microinjection. The intact spinotrapezius muscle of adult male Wistar rats was exteriorized and loaded with the fluorescent probe BCECF-AM. Muscle was loaded low pH solution by microinjection. This model offers a unique opportunity to investigate the consequences of experimental manipulations of pH on muscle buffering dynamics under close-to-physiological conditions