OHSU study shows supplement improves blood flow from placenta to fetus in pregnant smokers, bringing it closer to the levels ...

Previous studies by Oregon Health & Science University researchers have shown that taking vitamin C during pregnancy may help ...

Marijuana also crosses the placenta and may affect placental blood flow. The most pressing concern in maternal marijuana use is an association with shortened gestation. Amphetamines also affect ...

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 ...