in comparison with the control group , the activities of the studied enzymes , i.e . reduced nad dehydrogenase ( nadd ) , glucose-6-phosphate dehydrogenase ( g6pd ) , lactate dehydrogenase ( lds ) , succinate dehydrogenase ( sd ) , cytochrome oxidase ( co ) , and phosphorylase a+b in the epithelium and the connective-tissue cells of the studied mucosa of the experimental animals were as a rule markedly lowered , this decline being especially pronounced for the three last-mentioned enzymes .
C0030016
dehydrogenase
C0022917
lactate dehydrogenase