Reproductive biology
Discover in depth the biological processes related to fertilization, embryo implantation and all aspects affecting human reproductive biology.
Why does embryonic arrest sometimes happen during in vitro development?
Many factors can intervene in arrest processes during embryo development which mean cell division is detained and, therefore, it is not possible to implant the embryo in the mother’s uterus and bring about a pregnancy. […]
Spermiogramme and Advanced Semen Studies (FISH AND TUNEL)
One of the basic studies done to determine the male’s sperm quality is the seminogramme , also known as spermiogramme. We would need a sperm sample to carry it out (see how to take the […]
What are an embryo’s nutritional requirements prior to transfer to the mother?
During in vitro fertilisation processes, for the first few days of their lives, human embryos have to develop outside the mother’s body in special incubators. Temperature and pH conditions need to be optimum and embryos […]
The advantages and disadvantages of transferring embryos during a natural or artificial cycle
Embryo transfer to the uterus is the pinnacle of all courses of assisted reproduction treatment. It cannot be left to chance. The endometrium needs to be receptive and facilitate embryo embedding. The endometrium can be prepared with the aid […]
Assited Reproduction Techniques: FIV vs ICSI
Currently there are two main techniques used to achieve Assisted Reproduction IVF. These two techniques are conventional in vitro fertilization (IVF), and intracytoplasmic sperm injection (ICSI). In IVF, the previously capacitated male sperm are deposited […]
Structural chromosome abnormalities: how do they impact the embryo and the carrier?
In comparison with the general population, there is a greater prevalence of chromosomal abnormalities amongst couples with reproduction issues. An analysis of the 46 chromosomes (23 pairs), DNA structures and highly-organised proteins that contain a […]
Use of the intracytoplasmic spermatozoa injection (ICSI) technique began in the 1990s. It has been successfully used to resolve most severe cases of male sterility. Here is some information about when we use the ICSI technique: When […]
The miracle of embryo implantation
Embryo implantation is the process in which the human embryo adheres to the endometrium, where it continues developing. The first step of this process begins with the dialogue between the embryonic and maternal cells. This […]
One of the options for patients undergoing In Vitro Fertilization (IVF) techniques with remaining embryos, meaning high quality embryos that can be cryopreserved for the future, is to donate these embryos to other couples for […]
Antioxidant-rich diet and improved male fertility
Infertility as a disease, is defined as the impossibility of achieving pregnancy after 12 months of regular sexual intercourse without using any contraceptive method. The term subfertility (Zegers-Hochschild 2017) can also be used. Therefore, subfertility […]