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“Aims: To assess trophoblast apoptosis separately in the cytotrophoblast,
syncytiotrophoblast, total villous trophoblast, syncytial knots and syncytial knot formation, and to investigate the expression of apoptotic factors Fas ligand (FasL), Bcl-2 and proliferation marker Ki-67 in the trophoblast of placentas from preeclamptic patients. Methods: The study included placental samples from 25 preeclamptic and 25 normal pregnancies. For the detection of apoptosis and proliferation, antibody M30 and antibody against Ki-67 Androgen Receptor Antagonist antigen were used. Expression of FasL and Bcl-2 was assessed using semi-quantitative HSCORE method. Syncytial
knots were expressed as the number of syncytial knots per individual villus and as the total number of syncytial knots in each placental sample. Results: Trophoblast apoptosis, number of syncytial knots per individual villus and the total number of syncytial knots in each placental sample were significantly higher in preeclamptic placentas than in control group ON-01910 datasheet placentas. FasL expression was significantly Selleck Ilomastat less, and Bcl-2 expression significantly greater in the villus trophoblast among the study subjects compared
with controls. There was no difference in the trophoblast proliferation between groups. Conclusion: Our findings might suggest that increased apoptosis and syncytial knot formation combined with reduced FasL expression could be involved in pathophysiological mechanisms of preeclampsia. Copyright (C) 2011 S. Karger AG, Basel”
“The effect of prolactin(PRL) onion transport across the porcine glandular endometrial epithelial cells was studied in primary cell culture using the short-circuit current technique. Addition of 1 mu g/ml PRL either to the apical solution or to the basolateral solution produced a peak followed by a sustained increase in Isc, but with a lesser response when PRL was added apically. Basolateral addition of PRL increased the Isc in a concentration-dependent manner with a maximum effect at 1 mu g/ml and an effective concentration value of 120 ng/ml.