Abstract
To determine the level of CD20 + IL-10 + B-lymphocytes in pregnant women with the threat of termination of pregnancy at 5-12 weeks and recurrent miscarriage in history and compare the data obtained with the end of gestation. A survey of 65 women at a gestational age of 5-12 weeks was carried out. The main group consisted of 33 women with a threatening recurrent miscarriage at the time of the examination, the comparison group consisted of 10 pre-pregnant women with a threatening sporadic miscarriage at the time of the examination, the control group consisted of 22 pregnant women without signs of a threatening miscarriage. The main group, depending on the outcomes of pregnancy, is divided into 2 subgroups: subgroup A - pregnancy ended in undeveloped pregnancy or miscarriage (9 women), subgroup B - pregnancy ended in childbirth (24 women). The relative content of CD20 + IL-10 + B-lymphocytes was determined by flow cytometry on FACSCanto II (Becton Dickinson, USA). Women in the main group had a significantly lower level of CD20 + IL-10 + B-lymphocytes in comparison with the rest of the surveyed. A retrospective analysis revealed that among women of subgroup A there was a sharp decrease in CD20 + IL-10 + cells compared with subgroup B. Prediction of a non-developing pregnancy and spontaneous miscarriage up to 22 weeks of gestation in pregnant women with threatened spontaneous miscarriage and a history of recurrent miscarriage is possible with the relative content of CD20 + IL-10 + equal to or less than 4.5% (sensitivity 100%, specificity 82.6%, accuracy 87.9%).
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