抄録
Activity changes of the enzymes involved in the gentisic acid formation in tumor-bearing, fasting and protein-deficient rats were discussed. The activity of the gentisic aldehyde forming enzyme increased and then decreased in tumor-bearing rats. The acti-vity of this enzyme increased in protein-deficient rats and decreased in fasting rats. Gentisic aldehyde oxidase activity decreased in tumor-bearing and fasting rats.
