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In 2010, Simamura et al have demonstrated in a rat model that one of the pro-inflammatory cytokine belonging to the Interleukin-6 family cytokines, LIF, is required for the proliferation of neuronal progenitor cells in the cerebrum. They have shown that maternal LIF induces ACTH from the placenta, which in turn stimulates fetal nucleated red blood cells to secrete LIF, leading finally to neurogenesis in the fetus As demonstrated recently in a mouse model, maternal inflammation suppress the physiological maternal— fetal LIF—ACTH—LIF signal, result in reduction of ACTH production from placenta, which lead to a reduction in LIF concentration in fetal Cerebrospinal fluid (CSF) and impaired proliferation of the neural stem/ progenitor cells and poor development of the fetal brain. In the current study, the investigators will take fetal and maternal blood samples of fetuses undergoing termination of pregnancy (TOP) . Maternal samples will be acquired with the routine blood samples before performance of TOP , fetal blood samples will be acquired from the umbilical vessel after the termination has been completed , the blood samples will be analyzed for levels of LIF and ACTH and checked according to termination pregnancy week, Patients electronic files will be checked for relevant demographic and obstetric information.
The primary objective of this study is to compare the incidence of side effects of buccal and sublingual misoprostol when combined with mifepristone for medical abortions of less than 9 weeks gestation. The secondary outcome is to compare the complete abortion rate and induction-abortion interval between the two methods of administration of misoprostol.