Word: placentas
(lookup in dictionary)
(lookup stats)
Dates: all
Sort By: most recent first
(reverse)
...shown some promise in early trials of women with a history of premature delivery and no other known risk factors. Injecting these women once a week with the hormone progesterone reduces their chance of delivering early by a third. Researchers still don't quite understand why it works. The placenta produces a lot of the hormone, so it wouldn't seem that adding a little more would make a big difference. The treatment has not been studied in women who are carrying more than one child...
...other things being equal, an embryo must have both a maternal genomic imprint (usually from an egg) and a paternal genomic imprint (usually from a sperm), or it won't grow properly. If it has two paternal imprints, the placenta grows but not the embryo. If it has two maternal imprints, the embryo grows but not the supporting placenta. Defects in imprinting in humans are thought to contribute to such neurodevelopmental ailments as Prader-Willi syndrome and perhaps some forms of autism. Genes that have lost their imprinting have also shown up in brain tumors...
...more likely than either lesbians or heterosexual men to have older brothers (but not older sisters). He has since confirmed this observation in 14 samples from many places. Something about occupying a womb that has held other boys occasionally results in reduced birth weight, a larger placenta and a greater probability of homosexuality. That something, Blanchard suspects, is an immune reaction in the mother, primed by the first male fetus, that grows stronger with each male pregnancy. Perhaps the immune response affects the expression of key genes during brain development in a way that boosts a boy's attraction...
...actual paraphernalia of grieving) with a levitating mom, a bleeding mirrors and a flying carpet that?s less magic than black magic. To make a ?love hex? operable, in ?Eternal Evil,? a man needs his sister?s sweat; and Julie Lee tells the hero, ?You are enchanted. Inside the placenta, you will become a baby again. Then you will melt to water and blood...
...pregnant; she panicked when she recalled the warning on the consent form she had signed: "The potential effects of these drugs on the growing fetus...may include serious birth defects." Yet when she voiced her fears, Robertson says, McGee assured her that the vaccine couldn't pass through the placenta. She received another injection that...