Spain

What tests do I need to have before egg donation treatment?

Egg donation has become an option for women who, for whatever reason, can no longer use their own ova. For example, due to poor ovarian reserve, poor oocyte quality and premature menopause.

The process is widely used in Spain. As well as exceeding organ
donations and transplants in number, we also have the largest number of egg
donors in Europe.

It […]

2019-02-15T09:45:38+02:0015 de February de 2019|0 Comments

DNA fragmentation in sperm: TUNEL

When a couple fails to get pregnant or has an unsuccessful pregnancy, a number of tests performed on both partners is recommended. One of the basic tests in analysis of the male partner involves performing a seminogram or spermiogram that provides us with an initial indication of semen quality. This information can be supplemented with a sperm DNA fragmentation analysis, should this be considered necessary.
The DNA fragmentation test is a technique that supplements a study of the male factor in certain cases. […]

2018-11-28T09:56:53+02:0030 de November de 2018|0 Comments

Seminal lavage in males with HIV

Human immunodeficiency virus (HIV) is a retrovirus and, during its most advanced stage of infection, it leads to acquired immunodeficiency syndrome (AIDS). Whilst there is currently no cure for HIV/AIDS, antiretroviral treatments do exist that stop the symptoms from developing or delay them until later. As such, we come across increasing numbers of couples of childbearing age who wish to have children and in which one of the partners is a carrier of the virus. […]

2018-08-22T08:59:51+02:0024 de August de 2018|0 Comments

Fragile X chromosome syndrome and fertility

Fragile X syndrome is one of the most common causes of hereditary intellectual disability.
The gene responsible for the disease is known as FMR1 and it is found in the X sex chromosome. As a result, both the transmission and the severity of the disorder varies in each sex. As a general rule, men are said to suffer from it whilst women are said to transmit it.
There is a repeat region in the FMR1 gene (expansion) and its size determines whether or not the individual has the disorder or not, as indicated below. […]

2018-06-26T17:29:28+02:0029 de June de 2018|0 Comments

Sperm capacitation

The spermatozoa in ejaculate need to have gone through a process known as sperm capacitation in order to obtain the ability to fertilise. This happens naturally in the female reproductive system and techniques in order to make it happen in the laboratory have been undergoing development for many years. […]

2018-06-06T09:08:08+02:008 de June de 2018|0 Comments

Tobacco and semen quality

According to the World Health Organization (WHO), nowadays between 10 and 15% of couples have fertility issues and between 30 and 35% of the reasons for infertility can be found in the male partner. Therefore, improving semen quality is one of the main concerns amongst couples with reproduction issues. […]

2018-05-03T17:24:58+02:004 de May de 2018|0 Comments

Mumps and male infertility

Parotitis, more commonly known as “mumps”, is a contagious viral disease that affects one or both parotid glands (major salivary glands) situated behind the ascending rami of the mandible. It is caused by the mumps virus and typically affects children and teenagers, although it may also cause infections in sensitive adults. In general, the disease produces lifetime immunity, and it may be prevented by the administration of the combined MMR vaccine. Mumps may affect other glands in the body, the central nervous system and the testicles. The most frequent complications are meningitis and testicular inflammation which may lead to infertility. This inflammation of the testicle is also known as mumps orchitis. It is not very frequent, affecting 1 per million inhabitants per year among the general population. […]

2018-04-05T09:14:33+02:006 de April de 2018|0 Comments

Effects of advanced paternal age on fertility

Owing to sociocultural and economic factors, there has been a considerable increase in recent years in the number of men over the age of 35 who wish to have children. As a couple ages, the probability that they will experience reproductive problems increases. The negative effect of maternal age on fertility has been widely documented and we know that fertility diminishes drastically after the age of 39. Maternal aging is also associated with miscarriage, pregnancy complications, congenital anomalies and an increase in perinatal mortality.
However, few studies analyse the effect of  paternal age on success after the application of assisted reproduction technology (ART) and the results they provide are contradictory. It is true that the male reproductive function is less vulnerable than the female where the aging process is concerned, as is demonstrated by the fact that many babies have been born spontaneously to fathers who are in their seventies or eighties. However, some associations have been found in specific studies that relate a negative effect of advanced paternal age with: […]

2018-03-23T10:03:08+02:0023 de March de 2018|0 Comments

Children born to blood relatives

The question of relationships between blood relatives has been approached in many different ways throughout the course of history. There have been times when relationships of this kind have been commonly accepted, whilst at other times they have been prohibited for moral, religious or even scientific reasons.
Relationships between blood relatives were actively encouraged in some primitive cultures in order to promote clan unity. For example, marriage between members of the same family in ancient Egypt. The legislation in a large number of US States currently prohibits and actively pursues relationships between first cousins. […]

2018-02-16T14:03:20+02:0016 de February de 2018|0 Comments

The adventure of deciding to become a single mother: maternity alone

If becoming a parent is an adventure in itself, taking the step to become a single mother by choice is undoubtedly a challenge. Nowadays, nobody is surprised when a woman decides to have children by herself. It is a decision she takes after having thought long and hard about it. The future mother needs to feel that she is in no way alone during the process. Instituto Bernabeu has been helping women who decide to become single mothers using assisted reproduction treatment for years. The clinic has a team of specialists who, as well as having an in-depth scientific understanding of the situation, bring a very human touch to the sensitive issue of choosing to be a single parent. […]

2017-04-28T13:04:36+02:0028 de April de 2017|0 Comments
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