MADISON - By successfully inserting a gene from a jellyfish into the fertilized eggs of rhesus monkeys, scientists have managed to make transgenic placentas, placentas where the inserted gene ...

The placenta has long been thought to produce serotonin during pregnancy. But in a new study, Yale researchers shatter the deep-rooted hypothesis—and show that the placenta doesn't produce serotonin ...

I am not the first person who has considered composing poetry to the placenta. One writer begins: “Oh Lady Placenta! What a life you lived in magenta.” Another almost coos to the “constant companion, ...

Scientists have created a breakthrough polymer chip designed to mimic a human placenta and embryo to stop the 'unethical and cruel' drug testing on more than two million pregnant mice worldwide each ...

Pregnancy is a unique situation in which the mother and the hemiallogeneic fetus peacefully coexist. Numerous fetal, maternal and placental mechanisms work in concert to protect the fetus from ...

The first stages of placental development take place days before the embryo starts to form in human pregnancies. The finding highlights the importance of healthy placental development in pregnancy, ...

Pregnant and feeling a little peculiar? After the excitement of seeing those parallel blue lines appear on the little white pregnancy test stick you weed on, it can be a bit of a shock when rampaging ...

In any placental mammal a finely tuned immune system protects its body against invasion. Detection of foreign proteins triggers rejection. Yet half the genes of a fetus in the mother’s womb stem from ...

Very few specimens exist that document the first weeks of embryonic development in humans. In some cases, information about a particular stage of development comes from a single specimen. Other ...