The Features of Limited Proteolysis in Placental Fibrinoid in Combination With Inflammation and Iron Deficiency Anemia of Pregnant Women

Abstract

The aim: To establish the features of limited proteolysis in fibrinoid of the chorionic and basal plates of the placenta in acute and chronic chorioamnionitis, as well as basal deciduitis on the background of iron deficiency anemia in pregnant women. Materials and methods: The histochemical procedure was performed using the ninhydrin-Schiff response to free amino groups of proteins by the method of A. Yasuma and T. Ichikava, and Bonheg bromophenol blue. Results: With iron deficiency anemia of pregnant women, the relative units of optical density in the chorionic plate were 0.312±0.0026, and with basal one – 0.310±0.0024 (with indicators of physiological pregnancy 0.285±0.0024 and 0.289±0.002.1). In the observations of acute chorioamnionitis, the quantitative indicators were 0.311±0.0024, chronic one – 0.311±0.0024, and with inflammation on the background of anemia of pregnant women – 0.315±0.0031 and 0.339±0.0036, respectively. With acute basal deciduitis – 0.316±0.0027, chronic one – 0.326±0.0034, and with inflammation of the basal plate of the placenta on the background of anemia of pregnant women – 0.320±0.0031 and 0.341±0.0038, respectively. Conclusions: With anemia of pregnant women, the processes of limited proteolysis are intensified in accordance with the indicators of optical density of histochemical staining in the fibrinoid of the chorionic and basal plates of the placenta compared with physiological pregnancy. In case of acute and chronic forms of chorioamnionitis and basal deciduitis, quantitative indicators of optic density of histochemical staining increase compared with physiological preg¬nancy. Comorbid anemia of pregnant women activates the processes of limited proteolysis only in the chronic form of chorioamnionitis and basal deciduitis.