Scientists in Newcastle claim to have created human sperm in the laboratory in what they say is a world first.
It would be a first.
They began with stem cell lines derived from human embryos donated following IVF treatment. [...]
The stem cells were brought to body temperature and put in a chemical mixture to encourage them to grow. They were "tagged" with a genetic marker which enabled the scientists to identify and separate so-called "germline" stem cells from which eggs and sperm are developed.
Ironic that this could bring about a child to someone who was not allowed to gestate and life themselves.
More details from New Scientist.
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