Archive for the 'Uncategorized' category

Endometrial polyps, what are they and how are they formed?

Feb 05 2014 Published by under Uncategorized

01Endometrial polyps are protrusions or growths in the endometrium, the lining of the uterus. Contain abundant inside your blood vessels and endometrial glands that respond to hormonal stimuli.

Polyps proliferate to form a region of the basal layer of the endometrium, and are less responsiveness to hormonal changes. Taking place repetition of menses, the endometrium functional layer surrounding the polyp breaks off and becomes increasingly individual from a pedicle. Continue Reading »

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Genetic approach to embryo implantation failure and repeated miscarriage

Couples that don’t achieve pregnancy after in vitro fertilization treatments and those who lose their pregnancy in early stages require a multidisciplinary approach in order to diagnose and treat their reproductive problem.

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From a genetic point of view, these patients are more likely to produce embryos with chromosomal abnormalities. To improve these couples’ pregnancy rates, the preimplantational genetic diagnosis (PGD) can be applied. In these cases, the goal is to select the embryos with the highest capacity of resulting in an ongoing pregnancy thanks to the fact that the PGD allows us to identify the number of chromosomes in the embryo. Only embryos with the correct number of chromosomes can lead to a healthy child, others will arrest in their development or will lead to a miscarriage. Continue Reading »

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Embryonic arrest, why don’t all of my embryos develop equally?

01.Embrion-Humano-10-celulas_-Dia-3When one starts an in vitro fertilisation (IVF) treatment, one of the most frequent concerns is the number of high quality embryos that can be obtained.

This number is variable and depends on several factors such as the ovarian reserve and gamete quality (egg and sperm). Once the eggs are fertilised, they are considered embryos, which begins after their early division. The embryo division is observed in the IVF laboratory on a daily basis and is key information to determine the embryo quality. The Spanish Association of Reproductive Biology (ASEBIR) establishes a classification according to various observed morphological parameters, which indicate the embryo quality according to their capacity to implant in the womb. Continue Reading »

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Legality of egg donation in Spain: Anonymity and confidentiality

Ovocito-e1322819738144Reproduction treatments with donated eggs have gained significant importance in recent years.

It is worth noting the main characteristics that the Law 14/2006 on assisted human reproduction techniques states on egg donation, which are explained below: Continue Reading »

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Contamination, environmental toxins and fertility

Instituto BernabeuScientific evidence from the last 15 years shows that without a doubt, environmental toxins before conception and during pregnancy cause long-lasting effects on reproductive health. An example of this is the exposure to mercury, which causes cognitive impairment in children. Another example is the exposure to agricultural pesticides, which is associated with sperm quality alterations and higher incidence of testicular and prostate cancer for men, and in women it interferes with the development of puberty, ovulation, fertility and menopause. Continue Reading »

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Is it beneficial to rest after the embryo transfer?

reposoWithout a doubt, one of the most emotionally stressful stages a patient undergoing IVF has to face is the period between the embryo transfer and the pregnancy test result.

It is a natural instinct for someone in this situation to want to do everything in her power to increase the chances of success, which is why she is extra sensitive to any messages she receives from family members, friends, the internet, etc. This leads to a confusing situation because oftentimes the advice received is contradictory. As if that weren’t enough, the vast majority is unfounded and not validated by any scientific evidence. Their question is often “should I rest or not?Continue Reading »

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Using Magnetic Fields to Select Healthy Sperm: MACS (Magnetic Activated Cell Sorting)

MACS Instituto BernabeuIt is well known that having the best possible sperm quality is important to the success of assisted reproduction techniques. To achieve this, the lab has to improve sperm quality based on its motility and morphology, selecting the sperm that is considered to be the best.

However in every ejaculate sperm with abnormal membranes are found, which are programmed to “die”. This process is called apoptosis, or programmed cell death.   Approximately 20% of sperm in subfertile patients are  thought to be in the process of “celular death”. Continue Reading »

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If I take antioxidants, can I improve my chances of pregnancy?

 

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This is a question that patients often ask their doctors in consultation and other patients in online forums. As usual, many things have been said without any scientific basis.

Fortunately, a study was recently published that collected 28 studies involving a total of 3,548 women who have gone to fertility centers. Continue Reading »

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Avoiding multiple pregnancy: Why is it important to avoid pregnancy of twins or triplets?

trillizosMultiple pregnancy is, along with ovarian hyperstimulation, the most significant complication in fertility treatments.

Most couples that go through assisted reproduction techniques consider multiple pregnancies to be desirable or the lesser evil. However, pregnancies of twins and even more so triplets are associated with a series of complications that challenge the pregnancy ending in the birth of a healthy baby. Let us not forget that the birth of a healthy baby is the only objective of assisted reproductive techniques. Continue Reading »

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Towards a Positive Embryo Transfer

sala-transfer-lowAt first glance, the embryo transfer seems to be the quickest and simplest step in the In Vitro Fertilisation (IVF) process. However, it is actually the most critical step in the entire treatment. Successfully overcoming previous hurdles means nothing if the embryo transfer is not done well. This happens if too much time lapses between when the embryo is taken out of the incubator and when it is placed back in the uterus. Continue Reading »

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