State Budget Educational Institute of Higher Professional Education, Rostov State Medical University, Ministry Health of Russian Federation, 2010.

Cord blood cell composition is a short-lasting delivery stress consequence and is similar on adult G-CSF-mobilized peripheral blood. G-SCF realizes biological effect by number of secondary messengers, many of which are also natural effectors of stress. In this research comparative characteristics of cell composition, including lymphocytes subpopulations, CD34+ and CD133+ cells, hematopoietic progenitor cells colony-forming activity and mobilizing cytokines concentration (IL-8, MMP-2, MMP-9), between term newborns cord blood and G-SCF-mobilized peripheral blood is shown. Mobilized cytokines concentration ratio in combination with CD34+ cells count in cord blood and mobilized peripheral blood suggests that delivery stress possibly is not single cause of cord blood features.