Implantation is a crucial step in mammalian reproduction, as it is a gateway to further embryonic development and Successful pregnancy. Successful Implantation requires an intricate succession of molecular and genetic interactions. These reciprocal interactions between the embryo and the uterus must be executed within a limited time (Psychoyos, 1986) known as the “window of implantation” or “window of receptivity”. Any breach in the communication between the endometrium and the embryo during this time leads to implantation failure. Implantation failure is an unsolved problem in reproductive medicine and is considered to be an important cause of infertility.
