[Investigations of the influence of radiation therapy upon the course of the DNA repair in peripheric lymphocytes and tumorous tissues from patients with malignant disease (author's transl)].

The influence of radiation therapy upon the capacity of DNA repair in peripheric lymphocytes and tumorous tissues was studied in eleven patients with malignant manifestations. A comparison was made between the effects of short-term and of long-term irradiation. The individual cases presented differing results. An enhancement of DNA repair as well as a diminution was observed in peripheric lymphocytes as a response to irradiation. In tumorous tissues, on the contrary, a total inhibition of DNA repair was generally found.