[Cytotrophoblast cells from human first-trimester placental villi: isolation, characterization, cultivation and research applications].

Introduction: Successful implantation and placentation are essential for the normal intrauterine development of the fetus. Trophoblast cell proliferation, differentiation, invasive behaviour and interaction with the maternal immune system are known to have an impact on these processes. Trophoblast cells do not only physically anchor the developing fetus to the uterus, but they give rise to the syncytiotrophoblast.

Antioxidant enzyme activities are decreased in preterm infants and in neonates born via caesarean section.

Objectives: To investigate the antioxidant defense potential of human neonates according to gestational age and mode of delivery.

Study Design: Four study groups were established, full-term normal spontaneous vaginal delivery (FT-NSVD, n=24), full-term caesarean section (FT-CS, n=19), preterm normal spontaneous vaginal delivery (PT-NSVD, n=15) preterm caesarean section (PT-CS, n=21). The activity of catalase (CAT), glutathion peroxidase (GPX), Cu/Zn superoxide dismutase (Cu/Zn-SOD) were determined from cord blood.