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- W2012715490 abstract "Previously, we showed that maternal smoking harms human placental development by changing the balance between cytotrophoblast (CTB) proliferation and differentiation. To understand the mechanisms involved, we studied the effects of maternal smoking and in vitro exposure of CTBs to nicotine and on CTB expression of molecules that govern cellular responses to oxygen tension: the von Hippel-Lindau tumor suppressor protein (pVHL), the hypoxia-inducible transcription factors (HIFs), and the vascular endothelial growth factors (VEGFs). We previously reported that hypoxia upregulates CTB pVHL expression (1). Here we show that in vitro exposure of CTBs to nicotine has the same effect. Maternal smoking also dysregulated CTB expression of all three molecules. Remarkably, we found that passive exposure to cigarette smoke had many of the same effects as active smoking, a graphic demonstration of the ill effects of cigarette smoke, even secondhand, on placental development. Together, these findings explain, in part, how smoking damages the placenta by altering expression of key mediators of placental development." @default.
- W2012715490 created "2016-06-24" @default.
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- W2012715490 date "2003-10-01" @default.
- W2012715490 modified "2023-10-18" @default.
- W2012715490 title "Disruption of oxygen-regulated responses underlies pathological changes in the placentas of women who smoke or who are passively exposed to smoke during pregnancy" @default.
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- W2012715490 doi "https://doi.org/10.1016/s0890-6238(03)00094-7" @default.
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