Xinhuanet London, July 8th British researchers reported on the 8th that they used the embryonic stem cells to successfully manufacture human sperm for the first time, but scientists said they would not use artificial spermatozoa for artificial insemination.
The University of Newcastle, UK, issued a press statement on the 8th that researchers from the University and Northeastern England Stem Cell Research Institute and other institutions use a culture medium containing retinoic acid and other substances to culture male embryonic stem cells containing X and Y chromosomes. , and prompted it to achieve complete meiosis, and eventually cultivate test tube sperm containing 23 chromosomes.
Researcher Karim Nayeniya said that the study will help analyze in depth the causes of male infertility and use relevant knowledge to help infertile couples who wish to have children. For example, because of the use of chemotherapy, children who are cured of leukemia may become infertile in adulthood. This study can help analyze the causes.
The researchers also stated that they do not use in vitro sperm for artificial insemination, not only because British law does not allow it, but also from a scientific point of view, this does not make sense for the research team. (Reporter Huang Hao)