Abstract
Purpose of the study. Was to study the values and variability of traditionally determined blood parameters and index of the adaption status in intact mature Balb/c mice of different sex.Materials and methods. Studies were carried out on 20 animals of mature age with spf-status, males (10) and females (10). Cytological and biochemical parameters of blood and weight characteristics of the organs of the immune system and adrenal glands were studied (considering the constitutional features of mice of this line). Statistica 10.0 software package was used for statistical analysis. The coefficient of variation (CV) was determined. The significance of statistical differences was assessed using the Mann-Whitney test.Results. Sex differences were found in the ratio of albumins and globulins, the content of urea and alkaline phosphatase, the relative proportion of lymphocytes and monocytes in the blood count, the erythrocytes’ count and the level of hemoglobin in erythrocytes. There were also indicators which had values of severe variability (CV up to 51 %), the number of those in males was higher than in females. The information content of the weight characteristics of the studied organs is reduced due to the constitutional features of Balb/c females. The identified sex differences indicated a higher adaptive status of female rodents compared to males and let to propose the prevalence of different activity of T-cell, B-cell and myeloid line in animals of different sexes.Conclusion. The study of weak and moderate shifts in traditional laboratory parameters reflecting the adaptive status and characteristics of the blood of sexually mature males and females of the Balb/c line under physiological conditions made it possible to identify the sex characteristics of systemic regulatory processes that may be important for the body's resistance to malignant growth and the effectiveness of antitumor treatment. The current areas of further research are also indicated.
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