НАРУШЕНИЕ ПРЕОБРАЗОВАНИЯ АНДРОСТЕНДИОЛА В ПЛАЦЕНТЕ ПРИ БЕРЕМЕННОСТИ, ОСЛОЖНЕННОЙ РЕАКТИВАЦИЕЙ ЦИТОМЕГАЛОВИРУСНОЙ ИНФЕКЦИИ В ПЕРВОМ ТРИМЕСТРЕ

Abstract

The aim is to analyze androstenediol converting in villous chorions at gestation against cytomegalovirus infection activation during the first trimester of pregnancy. 48 villous chorions samples taken during medical abortion at 8-10th weeks of gestation of women with chronic cytomegalovirus reactivation during pregnancy became the material for study, and 35 villous chorions samples were taken as the control. The results of pregnant women examination were analyzed from the point of cytomegalovirus infection activity with immune-enzyme method by the presence of IgM antibodies or by the value of 4-times and more growth of IgG antibodies titer in paired sera in dynamics in 10 days. IgG avidity index to cytomegalovirus was more than 75% in all women. Androstenediol converting was assessed with histochemical methods. Quantitative evaluation of the reaction products was carried out on sections under the microscope MT (Japan) associated with software-hardware complex «SCION Corporation» (USA). Histochemical reaction product of the androstenediol dehydrogenase was well detected in cyto- and syncytiotrophoblast of chorious villi. Reaction activity in the material from women with reactivation of cytomegalovirus infection during pregnancy was low, which indicated a reduction in the reserve for the synthesis of estrogen. The concentration of estriol and estradiol in villous chorions during reactivation of cytomegalovirus infection decreased till 24.9±2.01 nmol/l and 15765.1±107.77 pmol/l, respectively.