embryo implantation

Uterine contractions: a challenge for embryo implantation

We are not yet fully aware of the exact reasons why sometimes a pregnancy happens and sometimes it does not. The embryo implantation process is an entire set of processes, many of which are unknown.

Based on the fact that the main factors that have an impact on implantation are the embryo and the female uterus, huge progress has been made […]

2019-02-28T09:54:40+02:001 de March de 2019|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

What is the impact of obesity on male fertility?

Obesity, when understood as a body mass index (BMI) in excess of 30kg/m2, is associated with numerous health issues including hypertension, diabetes, hypercholesterolemia and so on. It also affects fertility. In women, the impact of obesity is very clear. It generates hormonal abnormalities that have a direct impact on a woman’s ability to reproduce. As a result, obesity in women has been the subject of numerous studies and there are a large number of publications on the matter. […]

2018-11-09T13:11:18+02:009 de November de 2018|0 Comments

The advantages of comprehensive chromosome screening (PGS/PGT-A/CCS) in women of an advanced maternal age

Women currently seek guidance on reproduction at a much older age than they did some years ago. As a result, amongst the women who undergo fertility treatment, there is a significant group of women of an advanced age and their prognosis is poorer. This is a huge challenge for reproduction specialists. […]

2018-09-06T09:36:01+02:007 de September de 2018|0 Comments

Assisted hatching

Assisted hatching is a laboratory technique that consists of making a small hole in the zona pellucida, the membrane surrounding the embryo, in order to make it easier for the embryo to hatch out (something that naturally needs to happen) and implant in the uterus. […]

2018-07-02T18:35:44+02:0020 de July de 2018|0 Comments

I’m not getting pregnant. Why not? What can I do about it?

If you have been trying to get pregnant for a year or more without success, it’s time to search for an expert’s advice. […]

2018-06-04T09:57:30+02:0025 de May de 2018|0 Comments

What became of my embryos? Haven’t I got embryos to freeze?

These are just some of the questions that couples might ask at an important time during their treatment, just before embryo transfer.
In all cases of fertility treatment involving the in vitro fertilisation (IVF) laboratory, it is essential that all couples are given extensive, detailed and personalised information. This means talking about the embryo fertilisation and development processes.
When only a few fertilised oocytes are available as a result of poor ovarian reserve, transfer is carried out on day 2 or 3 of development in around 60% of cases because at this stage we can clearly select the embryos that are suitable for transfer. In around half of these cases it is not possible to cryopreserve embryos for future attempts. […]

2017-12-05T11:22:45+02:007 de December de 2017|0 Comments

Can the immune system have an impact on implantation failure and recurrent pregnancy loss?

The immune system plays a very important role in the health of human beings, acting as a defence barrier against harmful organisms or substances.
Immunology is a very complex area when trying to get pregnant or as a pregnancy progresses and it involves an elevated number of cell types and molecules that need to work in a coordinated and balanced manner. […]

2017-10-11T09:25:32+02:0020 de October de 2017|0 Comments

The importance of the Fallopian tubes in fertility

The Fallopian tubes are two, very thin elongated structures measuring around 12 centimetres in length which connect the peritoneal cavity to the uterus. In this external abdominal part, they are in very close contact with the ovaries.
The Fallopian tubes play a vital role or function in human reproduction: in the first instance, they are responsible for suctioning the egg from the ovary each month and later for waiting 24-72 hours for fertilisation. Should this not happen, the egg is simply absorbed. If it is fertilised, the Fallopian tube allows the fertilised egg to travel to the uterus thanks to contractions and to the hair cells lining it. The fertilised egg (or zygote) remains in the Fallopian tube for around 48-72 hours on its journey to the uterus where it will eventually implant the embryo. […]

2017-03-30T19:11:01+02:0031 de March de 2017|0 Comments

Could it be implantation failure why I don’t get pregnant? Diagnosis in one day.

Achieving pregnancy when pregnancy does not come is one of the challenges the medical team at Instituto Bernabeu faces every day. One of the most important challenges of female infertility is implantation failure. The embryo does not get to nest in the maternal uterus or it does but the woman undergoes an early miscarriage, which produces a great frustration. The couple should put themselves as soon as possible in the hands of the specialist and not leave to chance or wait the passage of time to solve a situation that requires a personalized study.
Instituto Bernabeu Medical Director, Dr Rafael Bernabeu explains: “The causes of implantation failure are multiple, but contrary to the general opinion, patients believe they are causing the problem when, in fact, to a great extent the problem is embryonic”. Therefore, the medical centre global benchmark in reproductive medicine develops a study of the three patients: “The mother, the father and the embryo.” Twenty-five percent of embryo implantation failures cases, “do not have a clear cause” and in many cases, there is a combination of factors that can be combined, warns Dr Rafael Bernabeu. Not only are environmental and immunological factors, they are also due to the intake of certain foods and even to the cosmetics used. “We are exposed to tens of thousands of chemical substances and many generate disorders and among them may be the cause of repeated miscarriage and implantation failure,” says Dr Bernabeu. […]

2018-03-26T18:23:03+02:0027 de January de 2017|0 Comments
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