| If someone could only figure out how to get those | | | | The resulting changes allow the embryo to invade |
| pesky embryos to actually stick once they are put in | | | | the lining.' |
| that warm and healthy uterus! If the embryos "look | | | | 'This invasion process has to be tightly regulated for |
| good" enough to transplant and they "should" implant, | | | | a placenta to form correctly and hook up with the |
| well then WHY don't they? The simple explanation | | | | maternal blood supply,' Professor Helen J. Mardon |
| below is a quote from Professor Helen Mardon. | | | | adds. |
| "Implantation relies on a set of closely coordinated | | | | So what I am reading here is that the embryos can |
| events occurring between a very early stage | | | | be deemed "perfect" but if the uterine lining isn't up |
| embryo and the lining of the womb. The embryo | | | | to having a "conversation" with the embryo then all |
| must initially attach to and form a contact with the | | | | bets are off. I don't believe that this is new |
| lining. Then cells from the embryo begin to invade the | | | | news...just put out there in more simplistic terms.... As |
| womb lining, eventually connecting with the mother's | | | | a surrogate or a woman going through the IVF |
| blood vessels and forming the placenta." | | | | process, we often wonder why there is a failed |
| 'The embryo and womb lining talk to each other, | | | | transfer. Perhaps it is because the signals of the |
| molecularly speaking, which allows them to interact,' | | | | uterine lining are not communicating with the embryo |
| explains Professor Mardon. 'When the embryo lands | | | | or perhaps there are other factors. Further testing |
| on the surface of the uterus wall, it triggers a | | | | and maybe a medication change may make the next |
| cascade of signals in both the embryo and uterus. | | | | transfer a success. |