Genetic incompatibility between the couple, does it exist?

Sep 29 2014 Published by under Fertility, Genetics, News

01It is estimated that about 20% of reproductive problems are genetic or chromosomal type. That is why today genetic testing is an essential part of the fertility study in couples who come to our clinic looking for descendants.

For the diagnosis of fertility problems there is a set of genetic studies very useful in the assistance of couples with reproductive desire. Tests such as the karyotype in both partners, microdeletion of the Y chromosome in the male or the molecular study of fragile X syndrome in women are usually required tests to determine a possible genetic basis of fertility problems in couples. Continue Reading »

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What are follicles? Number, growth and other characteristics

What are ovarian follicles?

To start with, let’s state what follicles are not. Follicles are not oocytes (eggs). Many patients confuse these terms, believing that follicle equals oocyte.

The female gamete is the egg, and the male gamete is the sperm. These are the cells involved in embryos obtained after fertilization. Continue Reading »

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Can we avoid the Genetic Ammiocentesis?

01 Genetic Amniocentesis is a prenatal diagnostic technique aimed at obtaining fetal karyotype. The karyotype is the number of chromosomes that are endowed with all people. Normal people we have 46 chromosomes distributed in 23 pairs (22 pairs of chromosomes called autosomes and 1 pair of sex chromosomes, XX or XY, which determine the sex of the fetus). Down syndrome or trisomy 21 is the most common chromosomal abnormality in new born infants; in this case, the individual has 47 chromosomes, and the alteration is that there are 3 21 chromosomes rather than two. Continue Reading »

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Anembryonic gestation

01 The anembryonic pregnancy or blighted ovum” is a specific type of miscarriage in which the fertilized egg implants in the uterus but the embryo does not develop. It is a relatively common problem: 10-15% of clinically detected pregnancies are lost spontaneously and one third of them are blighted ovum.

After fertilization, that is, after the union of sperm and egg, begin a series of cell divisions that lead to the formation of the gestational sac  surrounded by a “shell” or cover called trophoblast (which is the one that will lead to future placenta); inside the gestational sac the embryo will develop. In the case of anembryonic pregnancy the gestational sac is formed with the trophoblastic cover but the embryo is not displayed because it has stopped developing at a very early stage, before reaching a millimeter in size, so it cannot be detected with an ultrasound. Continue Reading »

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Blocked fallopian tube. The involvement of “tubal factor” in fertility

01The Fallopian tubes are trumpet-shaped structures that begin in the uterine cavity and end up opening by the ovaries. After ovulation, the fallopian tubes collect the released egg that is fertilized on the first portion, which is the closest part to the ovary. For this, the spermatozoa travel through the vagina, the cervix, the uterine cavity, and finally the route to the end of the tube. After fertilization occurs, the embryo (fertilized egg) launches its first divisions and travels through the fallopian tube towards the uterus where implantation occur and thus the establishment of pregnancy. Continue Reading »

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Difference between identical and fraternal twins

Apr 17 2014 Published by under Genetics, Gynaecology, News, Pregnancy

01Before establishing the biological origin differences between identical and fraternal twins, let’s make a quick note on the etymology of both words.

Etymologically both terms have the same origin (Latin gemellicium) and were used interchangeably to refer to children born in the same delivery. The only difference was the use of the term fraternal twin in the popular speech twin and identical twin in the cultivated speech. However, the semantic evolution of both words has been accompanied by the numerous advances in the field of genetics and knowledge of the development of the human embryo. In fact, since they differ in the latest edition of the dictionary of the RAE: Continue Reading »

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How many eggs on average are donated on an Egg Donation treatment at Instituto Bernabeu?

01 In Spain, we performed 40% of all egg donation cycles in Europe. The experience accumulated at Instituto Bernabeu for over 15 years, allows us to offer to our patients a high quality and personalized treatment.

When a patient decides to go for an Egg Donation treatment, a chain work is set in the organization, in which we guarantee a commitment of trust, reliability and professional quality.

Why an “x” number of eggs are donated? Why not only one?

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What is a Chemical Pregnancy?

01 There are times when we give patients the results of  in vitro fertilization, we tell them that the test is positive but that it is not good news, and that the chances that it evolves into an ongoing pregnancy are slim. It is a very difficult situation, emotionally, since it is very hard for patients to understand what has happened. If it really is positive, then why isn’t that good news? If it’s not good news, then why do I still have to take medication? Continue Reading »

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First Pregnancy Scan after IVF Treatment

01 Confirming pregnancy after IVF and Egg Donation . The first ultrasound in which we can see the pregnancy  is a very emotional time for the parents, especially for patients who have gone through  treatments for assisted reproduction. For these patients, after having a positive pregnancy test , their anxiety does not go away but gets stronger until the pregnancy is seen to develop normally. Therefore it is very important to know what happens during this exploration, and what to expect. Continue Reading »

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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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