embryo

Why hasn’t my assisted reproduction treatment worked?

The miracle of conception involves an intimate union between the ova and spermatozoon, appropriate evolution of the fertilised embryo and, furthermore, an ideal environment inside the uterus so that implantation can take place. Whilst this process might seem simple, it is much more complex than we might think, particularly in human beings. Only 30% of our conceptions end in […]

2019-06-13T09:00:34+02:0014 de June de 2019|0 Comments

5 indicators that the time has come to visit a fertility clinic

Infertility was a taboo subject until just a few years ago but nowadays it is common practice to turn to a reproductive medicine clinic for help when women are facing issues having children naturally. Instituto Bernabeu wants to give you a few rules of thumb for knowing when the time has come to visit a fertility clinic. […]

2019-05-17T08:55:21+02:0017 de May de 2019|1 Comment

How can we improve the chances of pregnancy for women who are obese?

The extent of the issue

Obesity is a public health issue both in the general population and in women of childbearing age. Far from improving, the problem has progressively increased over the last few years.

A study published in the journal The Lancet concludes that 13% of the world population has weight
issues. In Spain, there is a growing […]

2019-04-29T09:25:39+02:0010 de May de 2019|0 Comments

What is the ‘implantation window’ in fertility treatment?

The ‘implantation window’ is the name we give to the period of time during which the endometrium in the mother’s uterus is in an appropriate state for embryo implantation to take place.

Implantation is a critical and very precise process during which the embryo makes contact with and penetrates the endometrial tissue in the mother, making gestation possible. This […]

2019-04-12T10:55:28+02:0012 de April de 2019|0 Comments

Is the EmbryoGlue® culture medium that is used during embryo development efficient?

Culture mediums used during embryo development in in vitro fertilisation (IVF) laboratories are crucial to the exit of assisted reproduction treatment of any kind. Culture mediums have the mission of reproducing the physiological conditions inside the female reproductive system as closely as possible, embracing fertilisation up until embryo implantation in the endometrium.

In order for implantation to take place during […]

2019-03-29T09:40:39+02:0029 de March de 2019|0 Comments

The link between thrombophilia and recurrent implantation failure

The percentage of pregnancies achieved following assisted reproduction treatment has progressively increased over the years but we still have a long way to go before we achieve optimum results. This is why alternative treatment options that have not already been attempted are taken into account when several courses of treatment have not given a positive result.

It has been […]

2019-03-22T09:45:54+02:0022 de March de 2019|0 Comments

Embryonic development: the embryo on day 1 (D1)

When an oocyte is in an optimum state of maturation, ovulation takes place. This is known as day 0 of development (D0) and fertilisation by a competent spermatozoon must take place during this period.

When the oocyte is fertilised, it is then known as a zygote and
we are now on D1 of development. Certain characteristics and essential
structures need […]

2019-01-04T09:51:56+02:004 de January de 2019|0 Comments

Embryo fragmentation

Embryo fragmentation is a phenomenon that takes place in most embryos and its origin is not entirely clear. Some studies would seem to suggest that the fragments come from cell remains that have no nucleus or that they are the result of the decomposition of one or more cells from the embryo itself. The oocyte plays the most important role in fragmentation. Poor oocyte quality can lead to embryos that are highly fragmented. Embryo quality is determined by several characteristics such as the number of cells, their size or if the cell interior has an abnormality of any kind such as granularity or vacuolisation. However, one of the factors that has most impact on embryo quality is the extent of fragmentation. Based on the amount, in percentage, of space that it occupies, fragmentation is categorised into 4 types or degrees. […]

2018-12-17T11:07:30+02:0021 de December de 2018|0 Comments

The importance of embryo nutrition in achieving a successful cycle of in vitro fertilisation (IVF): metabolomics

One of the main limitations of assisted reproduction techniques are its embryo implantation failure rates. The implantation rate is the embryo’s ability to implant in the mother’s uterus. In other words, not all embryos are able to give rise to a pregnancy. Some have a greater chance of doing so than others. If it were possible to select embryos with the greatest ability to implant, it would be possible to improve assisted reproduction technique success rates. […]

2018-12-14T10:23:05+02:0014 de December de 2018|0 Comments

Is there hope for me following fertilisation failure after ICSI?

In vitro fertilisation treatment (IVF) techniques consist of fertilising oocytes with spermatozoa in a laboratory. They are held under conditions that are similar to their natural environment and, a few days later, the best embryo is selected and placed in the woman’s uterus where it remains until it implants. From this point on, monitoring procedures are the same as in any other spontaneous or natural pregnancy. […]

2018-11-02T14:19:35+02:002 de November de 2018|0 Comments
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