What happens during cryopreservation? If cells or tissue are removed from the body, they do not remain intact for long. In principle, the same applies as with fruit or vegetables: once harvested, it lasts for a while in the refrigerator, but then begins to decompose or serves as a food source for bacteria or fungi. … Cryopreservation: Cells in Hibernation
Definition Sperm cells are the male germ cells. Colloquially, they are also called sperm cells. In medicine, the term spermatozoa is often used. They contain the male genetic material for reproduction. This is the single set of chromosomes which, together with the single female set of chromosomes from the egg cell, results in the double … Sperm
Size of the sperm The human sperm cell is basically very small. In its entirety, it measures only about 60 micrometers. The head part, in which the chromosome set is also found, has a size of about 5 micrometers. The remaining part of the sperm, i.e. the neck and the attached tail, is about 50-55 … Size of the sperm | Sperm
Are sperm in the pleasure drop? The desire drop is a secretion of the bulbourethral gland (cowper gland) of the man. The desire drop is expelled from the urethra during sexual arousal and has a cleansing function on the urethra. The pH value of the urethra is thus increased, making the environment more alkaline, which … Are sperm in the pleasure drop? | Sperm
Alcohol and fertility Alcohol is a known cytotoxin, which has a damaging effect on many organs of the human body. Of course, the connection between alcohol and sperm fertility also plays a decisive role. In general, it can be said that moderate alcohol consumption is not harmful in terms of sperm quality and fertility. A … Alcohol and fertility | Sperm
How can sperm quality be improved? In the context of family planning, some couples make a vain attempt to become pregnant. This can have several causes. One possible cause is, for example, reduced sperm quality. These can be reduced in number, too immobile or completely immobile, or simply too slow. A test to determine the … How can sperm quality be improved? | Sperm
Triggering sperm and contractions – what is the connection? The connection between sperm and the triggering of contractions is currently still too poorly researched to give a clear answer to this question. The assumed connection is that sperm consists to a certain extent of prostaglandins.Prostaglandins are tissue hormones that are found throughout the body and … Triggering sperm and contractions – what is the connection? | Sperm
Introduction The possibility of freezing human oocytes, whether fertilized or unfertilized, gives women who do not wish to have a mother at a young age more time flexibility in family planning. While the freezing procedure has been used experimentally for decades, it is only with the recent development of a “shock freezing” method, known as … Freezing of oocytes
Before chemotherapy Whether freezing oocytes before starting chemotherapy is sensible and even necessary depends largely on two main factors: the age of the patient at the start of therapy and the chemotherapeutic agent used. The dosage and duration of treatment also play a role here. In general, it can be said that, for example, the … Before chemotherapy | Freezing of oocytes
Biological and technical background There are three hurdles to successfully storing a human egg cell for years or decades and then using it to achieve pregnancy. First, one or more mature, healthy eggs must be retrieved from the woman. As a guideline, the number of eggs required is approximately 10 to 20. There are three … Biological and technical background | Freezing of oocytes
Medical risks There are no known risks of hereditary or other diseases for the child born from a frozen egg, including artificial insemination; thousands of children have already been conceived in this way. However, due to the usually advanced age of the mother-to-be, by definition a high-risk pregnancy exists with sometimes considerably increased probabilities of … Medical risks | Freezing of oocytes
Social implications At the biologically optimal age for pregnancy – between 20 and 25 years – the average woman in a western industrialized nation is generally more likely to be in education or at the beginning of her career than in a married or illegitimate partnership. Therefore, only in individual cases does intentional motherhood occur. … Social implications | Freezing of oocytes
