During pregnancy, a unique new equilibrium state appears between the systems of the specific and nonspecific mothers immunity. Besides, the cytokine cascade is launched, which includes proinflammatory and anti-inflammatory factors of influence. The balance between these two groups of mediators determines the nature of the course and outcome of the gestation process. The objective: to determine the role of mediators of pro-inflammatory and anti-inflammatory reactions of gestation intercourse in patients with miscarriage. Materials and methods. The main group (the first group) was made up of 153 pregnant women with miscarriage. The control group (the second group) consisted of 25 relatively healthy women with a physiological course of pregnancy and a complcated obstetric and gynecological anamnesis, with one and more physiological births in anamnesis. The concentration of cytokines IL-1 β, IL-6, IL-8, IL-10, TNF- α in the blood and their content in cervical mucus by solid-phase immune-enzyme analysis was determined. Results. Consequences of previous pregnancies having a background of inflammatory complications of genital and extragenital genesis create conditions for long-term persistence of latent infection, including in the uterine cavity and cervical canal, followed by infection of the fetus, and contribute to the development of immune imbalance during gestation, which leads to a cascade of homeostasis disorders with the development of complications of the pregnancy intercourse and perinatal pathology. Thus, the presence of clinical symptoms of the threat of premature abortion occurs in the context of an increase in the concentration of proinflammatory cytokines (IL-6, IL-8, TNF- α and IL-1 β) in serum.Reducing the concentration of IL-10 in non-pregnant women, relative to such in control group, throughout the entire pregnancy in the blood and its content in cervical mucus indicates a violation of the balance of pro– and anti-inflammatory cytokines in the direction of pro-inflammatory reactions and violation of the local immune response. Conclusions. In women with a loss in the first trimester there is a pro-inflammatory activity of the immune response, which is an important pathogenetic factor in the development of abortion in different gestational periods. Key words: miscarriage, proinflammatory cytokines, anti-inflammatory cytokines.
The two-step treatment-prophylaxis complex which permitted to prevent the fetus's infection and to improve the flow of pregnancy based оn study of 70 pregnant women with reproductive losses in anamnesis was carried out.
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