PMID: 11898634Mar 20, 2002Paper

Dependence of the therapeutic effectiveness of interleukin-1beta on the time of the drug administration after irradiation of mice

Radiatsionnaia biologiia, radioecologiia
L M RozhdestvenskiĭT A Nesterova

Abstract

In experiments on mice F1(CBA x C57BL/6) the dependence of 30th days survival on the time of betaleukin (medicine form of interleukin-1 beta) administering after exposure to 7.5 Gy whole body gamma-irradiation from 137Cs (approximately DL80/30) was studied. Betaleukin was injected subcutaneously in dose 25 mcg/kg 0.2, 1, 3, 6 and 24 h after the exposure. The highest therapeutic effect took place in case of 0.2 h interval, then it dropped but was slightly expressed at 1 h. The hemopoiesis condition was studied in 7 or 9 days after the mice exposure to 6 Gy and betaleukin administering 1 h later in dose 25 or 50 mcg/kg. The positive effect on granulopoiesis beginning from the level of CFU-GM was observed. There were analyzed the reasons of weaker betaleukin effect and shorter period of its effectiveness after exposure in comparison with literature data regarding IL-1.

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