Results The distribution of VEGF in placenta of normal group is similar to that of PIH group.They all are found in villous trophoblast,villous blood vessels and villous strome.
Now, the sudden gush of blood through the collateral vessel stretches its walls and deforms the endothelial cells, which stimulates the production of growth factors like the vascular endothelial growth factor, or VEGF, from the vessel wall.