Abstract
In 20 men, age 35 to 55 years, with cancer of the larynx, activity of N-acetyl-beta-glucosaminidase in peripheral blood lymphocytes was determined cytochemically according to Hayashi's method. Numbers of enzyme-positive cells were counted with regard to the type of cytochemical reaction (granular, granular-diffuse, or diffuse), and to the number of enzyme-positive lysosomal granules within a single cell. In comparison to 20 healthy men, age 20 to 30 years, the following changes were noted in the patients: 1) the decrease of the total count of enzyme-negative lymphocytes; 2) the decrease of the total count of lymphocytes with granular type of reaction; 3) the increase of the counts of lymphocytes with granular-diffuse and diffuse type of reaction. The authors suggest that these changes could be related to the immune reaction of specific tumor antigens.
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