Sperm donors who are used to pregnant at least 67 children across Europe have been found to have passed rare cancer -induced mutations, and 10 children are sick.
23 of the 23 children, designed between eight countries in 2008 and 2015, have now been found to carry deformation, and some have been diagnosed with cancer such as leukemia and lymphoma.
The incident had a hard time informing the serious medical problem by tracking the limit of the limit of the limit and many families.
Since children have developed cancer related to the genetic variation of TP53, two separate families contacted Dasan Clinic, and the news was revealed.
According to the analysis of EUROPEAN SPERM BANK, which supplied sperm, there was a variant, but it is known to have no cancer at the time of donation in 2008.
Dr. Edwige Kasper, a biologist of Rouen University Hospital, said: “We must have European limitations on the number of births or families of a single donor.
“We can’t do full genome sequencing for all sperm donors. I do not claim it,” she added. “But this is an abnormal spread of genetic diseases. Not everyone has 75 children across Europe.”
She said: “I analyzed the deformation using the population and patient database, computer prediction tools, and functional test results, and the conclusions that the deformation probably caused cancer and the children born from this donor should have gene consultation.”
Children who appear to have genes are recommended to get a full body and brain MRI scan. It is also recommended to have breast and abdominal ultrasound as an adult.
Julie Paulli BUDTZ, a spokesman for European sperm banks Guardian: “We are deeply affected in this case.” She said that the donor was thoroughly tested, but said, “If you don’t know what you’re looking for, it is simply scientifically impossible to detect mutation of disease in a gene swimming pool.”
She added: “We have advocated several times, welcoming conversation in establishing a family limit internationally internationally, and this is why we have implemented the international limit of 75 families per donor.”
