Caption Vitamin D must be transferred from the maternal blood across the layers of the human placental barrier to the foetus, as shown in this electron microscopy image. The maternal blood fills ...

Tiny fragments of plastic are passing the blood-brain barrier and into human brains, and the amount of microplastics in the ...

By Bobby Bascomb A new study has found a dramatic increase in levels of microplastics and nanoplastics (MNPs) in human brains ...

Microplastics have been found in the brain, showing they can cross the blood-brain barrier, and the amounts of the tiny plastic bits inside our bodies appear to be increasing at a rate that reflects ...

These chemicals are commonly found in plastics used in toys, personal care, and food packaging products. New study reveals common household products could affect your child's weight: 'The time in the ...

In the human placenta, there are placental villi, and the surface of the villi consists of syncytiotrophoblast, also called barrier cells, that serve as the main barrier against foreign substances.

Uterine contractions produce transient decreases in blood flow to the placenta, which can lead to interruptions in gas exchange across the placental barrier. Occlusion of one or more of the ...

If the development of blood vessels in the placenta is impaired, fetal growth retardation may result. Scientists from the German Cancer Research Center (DKFZ) and the Mannheim Medical Faculty of ...

By the beginning of the second trimester, the cytotrophoblast plug breaks down and parental blood begins to enter the intervillous space. As the pregnancy progresses, cytotrophoblast cells keep ...