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Figure 3


Fig. 3. Metabolite changes due to spontaneous activity under control conditions (animal 4). In vivo 31P NMR spectra were acquired every 25 min. Each data point represents concentration information for the respective metabolite obtained from a single spectrum (acquisition time=3 min 40 s). Pi, inorganic phosphate; pHi, intracellular pH; PLA, phospho-L-arginine.