[The impact of disbalance of regulatory cytokines and osteocalcin on osteogenesis in children with congenital cleft lip and palate in postnatal ontogenesis]. / Vliianie disbalansa reguliatornykh tsitokinov i osteokal'tsina na osteogenez u detei s vrozhdennoi rasshchelinoi guby i neba v postnatal'nom ontogeneze.

The aim of the work was a comprehensive assessment of the system of cytokines and peripheral blood osteocalcin with the establishment of features of their interconnections in children with congenital cleft lip and palate (CCLP) in comparison with the corresponding controls at different age periods. In the peripheral blood of 80 children (0-12 months, 1-3 years, 4-9 years, 10-15 years) with osteocalcin and IL17, IL4, congenital cleft lip and palate and age-appropriate control of healthy individuals (40 people) IL6, IL1ß, IFNγ by enzyme immunoassay. An analysis of the data obtained with CCLP revealed significant differences in the dynamics of the relationship between pro-inflammatory (IL1ß, IL6, IL17), regulatory (IFNγ), anti-inflammatory (IL4) cytokines and osteocalcin compared with controls. The patterns of changes and effects of IL17, IFNγ, IL4 and osteocalcin in healthy children and in children with congenital cleft lip and palate in postnatal ontogenesis were established. Cytokine dysregulation of immunosteogenesis in CCLP, leading to a significant deficit of osteocalcin in the first year of life due to an imbalance of the cytokine profile: discordant IL17, IFNγ and IL4 were detected. Thus, the data obtained are undoubtedly important in the future for developing new strategies for targeted therapy aimed at normalizing osteocalcin levels at different age periods in children with congenital cleft lip and palate.

[Neutrophil granulocyte function in an acute experiment with cyclophosphane]. / Osobennosti funktsionirovaniia neitrofil'nykh granulotsitov v ostrom éksperimente s tsiklofosfanom.

Experiments of mice F1(CBAx57BL) were made to study cyclophosphamide effects on the number of circulating neutrophil granulocytes (NG) and on their main functions (receptor, phagocytic, function of microbicidal systems). NG count, the number of NG carrying receptors to sheep red cells, complementary EAC=POH, phagocytic and digestive activities and NBT-test were measured 15 and 60 min after administration of small (0.5 mg/kg) and large (150 mg/kg) doses of cyclophosphamide. The results suggest clear dose- and time-related effect of the drug which can induce both depression and stimulation. The data obtained can be utilized in developing approaches to prevention of complications caused by NG dysfunctions in immunosuppressive therapy of tumors, lymphoproliferative diseases, organ and tissue transplantation.