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Sperm of one donor in Europe is reportedly used to imagine at least 67 pregnancyAlthough Donor had a rare mutation that causes cancer.
The donor mutation is associated with the diagnosis of cancer in 10 and the children, according to The Guardiana report.
The case was made to light after two families were separately contacting their fertility clinic after their Diagnosis of children cancer They are connected to a rare genetic variant called TP53.
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Mutation in the TP53 gene causing Si-Fraumeni’s syndrome, which increases the risk of Development of cancer. The Cleveland Clinic says this disorder comes with a 90% chance of developing some cancers up to 60 years, and 50% of the chances up to 40 years.
The European Sperm Bank, a sperm supplier, confirmed that this variant was present in some of the donors sperm.
Researcher Dr. Edwige Kasper (not in the picture) advocates a European limit for the number of births or family for one donor. (East)
Guardian reported that the rare variant “is not known to be associated with cancer at the time of donation in 2008.”
The genetic variant is reportedly not discovered by standard screening, and as the provider is currently good health.
“The identified mutation is the one that could not be discovered by the methods of screening we use in accordance with regulations.”
Dr. Edwige Kasper, a biologist at Rouen University Hospital in France, presented this case at the annual conference of the European Human Genetics Society in Milan last week, commenting on the need for European limit on Number of births or family for one donor.
“We can’t do the sequence of the whole genome for all sperm donors-I don’t claim it,” she told Guardian. “But this is an abnormal spread of genetic disease. Not every man is 75 children across Europe.”
Kasper analyzed a mutation in his laboratory, concluding that he most likely caused cancer and that children born of this donor “should receive genetic consultation”.
A study that turned the research was found by 67 children from 46 families in eight European countries. AND The children were testedwith a variant discovered at 23.
10 which was diagnosed with cancer reportedly included leukemia and non-Hodgkin lymphoma cases.
Sixty -seven children from 46 families were identified by the donors in eight European countries. (East)
In a statement sent to Fox News Digital, the European Sperm Bank stated that the reproduction of a supported by donors “generally remains a significantly safer alternative” than reproduction without reproduction genetic examination.
The bank added that sperm donors undergo a “comprehensive health examination”, which includes a deep medical examination, an overview of the family medical history of donors and “extensive” genetic testing and infectious diseases.
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“However, it is not possible to exclude any risks – and, in this particular case, the identified mutation is the one that could not be discovered by the methods of the screening we use in accordance with the regulations and will require specialized genetic testing,” the group noted.
Julie Paulli Budtz, vp. Corporate communications at the European Sperm Bank, expressed in Fox News Digital that they are “deeply affected by this case.”
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“The donor has been thoroughly tested even beyond the necessary standards, but a preventive genetic examination reaches its limits here,” she said.
“Every human being has about 20,000 genes, and it is simply not possible to detect mutations that cause a disease in a person’s gene if you don’t know what you are looking for.”
Eggs and sperm are stored in a tank with liquid nitrogen at the center of fertility in Berlin. (Jens Kalaene/Picture Alliance via Getty Images)
Budtz noted that the European Sperm Bank welcomes the “continuous dialogue” regarding the setting “internationally binding family boundaries”, for which they advocated “on several occasions, also at EU level”.
“This is also a reason why, except that is respected nationally Pregnancy limitationsWe have proactively implemented our own international border of 75 families per donors, “she added.
What to know about US Sperm donation guidelines
In the US, there is no official legal limit of how much sperm donations can be given by one man.
However, the US Society for Reproductive Medicine (ASRM) recommends that donors are limited to 25 living births within each population of 800,000 people.
“Institutions, clinics and sperm banaks should guide enough records to allow restriction to set Number of pregnancy For whom the donor is responsible, “ASRM states on its website.
“Limiting donor bottles is an important part of the process.”
California Cryobank, who claims he has the largest selection of sperm and egg donations in the country, states on his website that he carefully monitors donors to limit the total number of family units to 20 to 30 worldwide.
“Limiting donors bottles is an important part of the procedure,” the bank remarked.
The American Federal Medicines Administration requires that all sperm providers pass a physical exam, fill the questionnaire, give their medical history and undergo examinations for infectious diseases in the laboratory granted by the FDA. (East)
The American Federal Medicines Administration (FDA) requires that all sperm providers will pass a physical examination, fill the questionnaire, give their medical history and undergo examinations for infectious diseases in the laboratory approved by the FDA.
In addition, ASRM suggests that donors undergo psychological and genetic screening, and also recommends testing the recipient of an infectious disease and recipient Sexually intimate partnersby his website.
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“Legal counseling and laws may differ depending on the state,” the organization notes.
At California Cryobank, donors must be tested for infectious diseases, undergo genetic screening, get a psychological assessment and verification of a criminal background and get an examination for Zika virusAccording to the bank website.
