Assisted reproductive technology

Embryo implantation is the process by which the embryo is anchored in the endometrium and is essential for pregnancy to occur. From that moment the placenta will begin to form to allow the nutrition, sustenance and protection of the future baby during pregnancy. Below you have an index with all the points that we will discuss in this article. Index What is the implantation of the fertilized egg? - Stages step by step 1. What is needed for implementation? 2. When does the implantation occur? 3. How is the implantation of the embryo? 4. Interview with Dr. Silvia Jiménez (Reprofiv) 5. Questions from users 5.1. What is the difference between fertilization and implantation? 5.2. Is the implantation of the ovule, the zygote, the embryo or the fetus? 5.3. Do you feel pain in the implantation? 5.4. Can the embryo implant abnormally? 5.5 How can I know if there is an implantation? Are there any symptoms? 5.6. Is there any way to favor implantation? Knowing why some em...

In recent years, a new technique of sperm selection has appeared: the annexin V columns. It allows the separation of spermatozoa of better quality through the application of magnetic fields, which is why it is also known by the name of MACS (magnetic-activated cell sorting). In this article we will explain what it is based on and what clinical applications it has. Below you have an index with all the points that we will discuss in this article. Index What is the MACS technique? - Improvements in sperm selection 1. Methods of sperm selection and fertility 2. What are Annexin V columns? 2.1. Advantages and disadvantages 3. In which patients is MACS indicated? 4. Questions from users 4.1. Can a MACS be performed with sperm obtained by testicular biopsy? 4.2. Are annexin V columns an alternative to density gradients? 4.3. Can you select sex using this technique? 5. Recommended reading Advantages and disadvantages The main advantage of this technique is that it allow...