Chromatin structure has been studied with a method of optico-structural machine analysis for interphase nuclei of peripheral blood lymphocytes in healthy donors, a girl with the Shereshevskiĭ-Turner syndrome (45, XO) and her parents, and for peripheral blood lymphocytes of a cow, Bos taurus L., in the last trimester on the background of preeclamptic syndrome and with normal cow pregnancy of compared terms. A significant change was revealed both in human heteroploidy and in developing preeclamptic syndrome in animals as concerns such indexes as the nucleus area, integral optical density, the amount and area of condensed, decondensed chromatin. The profile of histograms, according to the given parameters, is distinctly changing. The analysis based on constructing a two-measured field in the given coordinate system showed changes in the lymphatic population structure with the increase in the rate of "heavy", enriched DNA cells.
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