a reduction in the content of neutral mucopolysaccharides in mucous cells of the neck , a slight decrease in the activity of succinate dehydrogenase and nad-diaphorase in parietal cells , a decrease in the dna synthesis rate , and an increase in the area of mitochondria and cristae were detected in the gastric mucosa of rats which were in a long-term space flight .
C0030559
parietal cells
C0017136
gastric