[Cytochemistry of leukocytes in childhood. III. Changes of cytochemical reactions in lymphocytes in infections and during immunological reactions].

The present paper gives a report on changes of enzyme reactions, of the glycogen content, and the nucleolus picture in lymphocytes which are based on cytochemical investigations of blood smears taken from 110 children with different diseases. In 20 new-born babies the cytochemical responses of lymphocytes after triple immunization with Di-Pe-Te immunization matter were observed. The findings reveal significant changes to be found predominantly in the activity of alpha-naphthylacetate esterase, PAS-reaction and the nucleolus picture of lymphocytes in immunological reactions. No hints for specific immunological functions of lymphocytes could be detected. The changes may refer to B-lymphocytes and to T-lymphocytes.