oocyte vitrification

Why is fresh egg donation better than frozen?

One of the most controversial questions for patients looking for egg donation is whether or not the eggs are fresh, and if this makes a difference.

With the use of cell vitrification during recent years, survival after thawing has improved greatly for sperm and embryos. However, the size of an egg (the largest cell in the human body) makes it more susceptible to thermal stress. Therefore the rate of survival is not as high, and it is possible that certain cellular structures suffer in the freeze-thaw process. […]

2016-09-22T11:44:23+02:001 de July de 2013|0 Comments

Unraveling the mysteries of ICSI (Intracytoplasmic sperm injection)

We’re dedicating this Instituto Bernabeu forum topic to a very common technique used in the human reproduction laboratory: ICSI or Intracytoplasmic sperm injection. We have prepared this explicative video on the topic, in which Dr. Jorge Ten simply explains what this technique involves, how it is performed, its indications, history and evolution, as well as our reproductive biology team’s efforts to perfect the results. We hope you like it! […]

2016-09-22T11:43:59+02:002 de May de 2013|1 Comment

Intentionally delaying motherhood: oocyte vitrification

Although egg cryopreservation was introduced more than 20 years ago, the results so far have been dispiriting, but in recent times there have been remarkable advances and improvements in the field of cryobiology which have made its acceptance as a routine technique possible.

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2016-09-22T12:21:47+02:001 de May de 2012|4 Comments

Azoospermia in the IVF lab

Azoospermia is defined as the absence of sperm in the ejaculate, which is generally classified as either obstructive or secretory. In obstructive azoospermia, the sperm cells cannot complete their journey from the testicle to the urethra through the seminal tract; however, the sperm cells are produced in the testicle (spermatogenesis). […]

2016-09-22T11:48:33+02:0011 de January de 2012|1 Comment
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