Abstract
Experiments were performed on the model of cytostatic myelosuppression induced by cyclophosphamide. We compared the effect of immobilized granulocyte CSF (the preparation was created in Russia) and reference standard preparation of granulocyte CSF on the development of neutrophilic leukopenia and hemopoietic precursors of various classes. It was found that preparations of granulocyte CSF decreased the duration and degree of peripheral blood neutropenia. The granulocytopoiesis-stimulating effect was related to stimulation of multipotent hemopoietic precursors, granulocyte-erythroid-macrophage-megakaryocyte precursors, and granulocyte precursors. Induction of division and maturation of multipotent hemopoietic precursors, granulocyte-erythroid-macrophage-megakaryocyte precursors, and granulocyte precursors and recovery of cellularity of the granulocytic hemopoietic stem after administration of immobilized granulocyte CSF were observed at later terms compared to treatment with the reference preparation of granulocyte CSF.
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