[Ingestion and NBT reduction capacity of polymorphonuclear leucocytes in trisomy 21 (author's transl)].

Polymorphonuclear leukocytes of 30 patients suffering from Trisomy 21 between the ages of 3 months and 21 years were examined by means of a modified NBT-test. Ingestion capacity as well as NBT reduction capacity of polymorphonuclear leukocytes showed a decrease in dependence on the age of the patients examined. It is supposed that both disorders are involved in endangering patients with Trisomy 21 by infections.