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Objective — Discovery of the apoptosis-inducing effects of flavonoid vagonin allowed to make an assumption of existence of similar effect in others flavonoids. This study of the effects of extracts from Gratīola officinālis, Helichrýsum arenárium and diploid forms of Zea mays on bone marrow and blood leucocytes at intramuscular and oral administration was carried out on rats bearing sarcoma 45. Earlier, the apoptosis-inducing effects were detected for these extracts but the toxic effects of extracts on blood and bone marrow have not been studied. Therefore, the aim of this study was to investigate the effects of these extracts on white blood cell count and bone marrow morphology. Material and Methods — The experiments were carried out on 48 male Wistar albino rats according to University's Animal Ethics Committee (Protocol No 13, 2011, Saratov, Russia) and the relevant national agency regulating experiments on animals. We evaluated white blood cell count and bone marrow morphology in animals after oral and intramuscular administration of extracts. A growth rate of tumor was also ranked. Results — Oral and intramuscular administration of extracts from flavonoid-containing plants Zea mays and Gratīola officinālis causes normalization of myelocytic germ parameters in bone marrow of tumor-bearing rats and increase of lymphocyte percent in white blood cell count of blood and myelogram. Conclusion — Absence of toxic effects and normalization of myelocytic germ parameters in bone marrow of tumor-bearing rats after oral and intramuscular administration of extracts from flavonoid-containing plants Zea mays and Gratīola officinālis allows to recommend further study of the antitumor effect of these extracts.

russian open medical journal

Effect of flavonoid-containing extracts on the growth of transplanted sarcoma 45, peripheral blood and bone marrow condition after oral and intramuscular administration in rats