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  • Title: [Changes in the cellular composition of the deciduous membrane in physiologic pregnancy and late toxicosis].
    Author: Kottsova NA, Bystrova OA, Susloparov LA, Mikhaĭlov VM.
    Journal: Arkh Anat Gistol Embriol; 1989 Nov; 97(11):76-82. PubMed ID: 2483610.
    Abstract:
    Cytochemical characteristics of the decidual membrane at a physiologically normal pregnancy and in cases of late toxicosis are presented. Three main cell types of the decidual membrane are defined: large decidual cells (LDC), small decidual cells (SDC) and granular cells of endometrium, or K-cells. Part of each cell type in the decidual membrane is determined. At physiologically normal pregnancy the part of the LDC makes 50-60% in the membranes and 80-85% in the basal plate of the placenta; SDC--10-18% in the fetal membranes and 1-2% in the basal plate of the placenta; K-cells--0.5-1%. At late toxicosis of pregnancy there is a change in relative and absolute amount of the decidual cells: the part of the LDC decreases up to 26-40% in the fetal membranes and up to 55% in the basal plate of the placenta; part of the K-cells at a slight form of preeclampsia rises up to 3-4%, at a severe form--up to 11-12%. The change in cell composition results in certain disturbances of physiological equilibrium of biologically active substances produced by the decidual cells. This correlates with the severity and clinical manifestations of the late toxicosis of pregnancy. Correlation of the decidual cells disfunction, directed to regulation of their reproduction and functioning, can become one of the elements of pathogenic treatment of the late toxicosis of pregnancy.
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