spermatogenesis

Temperature and Semen Quality

It is common knowledge that a seminogram is one of the basic tests that couples who are having issues getting pregnant. In other words, the male partner’s semen needs to be analysed in order to check certain parameters such as the quality of spermatozoa in ejaculate, their motility, their morphology and so on. The aim is to […]

2019-01-18T09:38:46+02:0018 de January de 2019|0 Comments

What are the causes of recurrent pregnancy loss?

Spontaneous abortion is defined as an unexpected pregnancy loss before the foetus is viable. In other words, before week 22 of pregnancy and under 500g in weight. The frequency rate of spontaneous abortion is estimated to be between 15 and 20% amongst the general population and it is the most common of all complications during pregnancy.
A small percentage (between 2 and 5%) of cases are recurrent and this is what is known as recurrent pregnancy loss (RPL). […]

2018-09-11T17:49:04+02:0014 de September de 2018|0 Comments

Tobacco and semen quality

According to the World Health Organization (WHO), nowadays between 10 and 15% of couples have fertility issues and between 30 and 35% of the reasons for infertility can be found in the male partner. Therefore, improving semen quality is one of the main concerns amongst couples with reproduction issues. […]

2018-05-03T17:24:58+02:004 de May de 2018|0 Comments

What is a spermatid?

Spermatozoa production takes place in the testicular seminiferous tubules and the process is known as spermatogenesis.  At the end of this process, a germ cell generates 4 mature spermatozoa which will survive in the human body for between 62 and 75 days.  The final stage in spermatogenesis, known as spermiogenesis, is a cell differentiation and maturation process consisting of the change from spermatids to spermatozoa.  As can be seen in the picture, the spermatids develop from secondary spermatocites and have already undergone Meiosis I and II division. They have a normal set of chromosomes (haploid) which means that fertilisation of a mature egg can take place. Therefore, and despite the fact that they are immature cells, they can be used in assisted reproduction techniques using ICSI when there are no mature sperm in samples taken from the ejaculate or testicles. […]

2017-01-13T14:38:30+02:0013 de January de 2017|0 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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