In this research, scientists wanted to see how early-stage embryos affect the genes in the oviduct cells of cows. They examined cells from different parts of the oviduct where the embryo was located. The study focused on 10 specific genes known to be different between pregnant and non-pregnant cows. They found that one gene, VAT1L, was significantly changed near the embryo. Also, five genes were less active in the part of the oviduct the embryo had already passed through compared to where the embryo was found. Interestingly, CCL20 had different activity levels between these oviduct sections. This shows that the presence and movement of the early embryo affects specific genes in the oviduct cells, indicating a local effect on gene activity in response to the embryo.