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Background-Marinobufagenin (MBG), a bufadienolide cardiotonic steroid, induces cardiovascular fibrosis. Because levels of MBG in preeclampsia are increased, and anti-MBG monoclonal antibody reduces blood pressure (BP) in a rat model of preeclampsia, we hypothesized that in preeclampsia, elevated MBG levels would be associated with the development of fibrosis in feto-placental circulation and with impairment of vascular relaxation.

The article summarized the results of many years studying of synchronization and coordination of uterine myocytes contractile activity during physiological labor contractions. The authors suggest that the physiological basis for these processes is the mechanoreceptor mechanism of feedback for the stretching which is one of the fundamental mechanisms for control contractile activity of uterine myocytes during parturition.