using cells and mitochondria isolated in the isotonic mannitol medium , it was found that 24-h hypoxia or fasting did not alter the mitochondrial cytochrome content , but 48-h hypoxia or fasting led to increases of 70 % and 37 % in the cytochrome aa3 concentration in the hypoxic and fasting animals respectively .
C0007634
cells
C0026237
mitochondrial