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Objectives  To study the state of immunity in pregnancies associated with urogenital infection and complicated by intrauterine infection.    Material and methods  The comparative study involved the examination of 250 pregnant women with urogenital infection and ultrasonographic signs of intrauterine infection and their newborns in order to assess the state of cellular and humoral immunity components and nonspecific resistance. A direct prospective examination of pregnant women was carried out in the 2 nd  and 3 rd  trimesters of gestation. Depending on the outcome of each pregnancy on the basis of the follow-up of newborns, performed on the first day after birth, the patients were retrospectively divided into two groups. The study group included 93 (37.2%) pregnant women who developed intrauterine infection. The comparison group (n=157 (62.8%)) comprised pregnant-carriers of perinatally significant infection who gave birth to conditionally healthy children. The control group consisted of 50 healthy women with a physiological pregnancy.    Results  In the gestation period under investigation, the development of intrauterine infection in pregnant women with urogenital infections was found to be associated with a deficiency of T-helpers / inducers, an increase in thymus-dependent lymphocyte killer activity, a high content of IL- 1β, TNF-α in the systemic circulation, and a decrease in the level of IL- 10 secondary to the oppression of the effector link of phagocytic neutrophils of peripheral blood.    Conclusions  An increased concentration of systemic proinflammatory cytokines IL-1β, IL-6 and TNFα with a simultaneous decrease in the IL-10 content and suppression of the killing activity of peripheral blood phagocytes reflects the presence of an active inflammatory process in the mother-placenta-fetus system and can be one of the factors affecting the development of intrauterine infection in pregnancy, complicated by urogenital infection.

The State of Immunity in Pregnancies Complicated By Intrauterine Infection of The Fetus