A number of biochemical parameters (total nitrites and nitrates (NO(x)), cyclic guanosine monophosphate (cGMP), nitrotyrosine, medium-weight molecules (MCM) in the placenta were determined in women with gestosis during discoordinated and powerless labor. Thirty placentas (10 placentas from parturients after discoordinated labor, 10 from those after powerless labor, 10 placentas as a control group) were examined. Changes in the parameters under study were found to result in the development of nitroxide and oxidant stresses and endotoxicosis. The biochemical parameters should be considered as placental criteria for the differential diagnosis of labor anomalies in gestosis, such as powerless and discoordinated labors.
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