Decidual T cells, Treg cells, NK cells, and macrophages were sparsely distributed in oocyte donation cases.
Impairment of vascular remodeling of spiral arteries was observed in oocyte donation cases.
The expression of p62 in the extravillous trophoblasts of oocyte donation cases was increased.
These findings were observed in oocyte donation cases, regardless of the presence or absence of preeclampsia.