[The effect of antioxidants on the activity of acid hydrolases in blood leukocytes from patients with leukoplakia of mouth mucosa].

Activity of acid hydrolases, alkaline phosphatase and leucine aminopeptidase was studied in leukocytes of patients with leukoplakia of mouth mucosa before and after the treatment involving antioxidant drugs. The enzymatic activity studied was increased in leukoplakia. Cryotherapy combined with antioxidants and the treatment with antioxidants only contributed to a decrease in these enzymes activity.