Pulling a Tooth Could Lead to Tailor-Made Sperm, Butantan Institute Researchers Say
7/9/2008 7:01:57 AM
New Scientist -- Could sacrificing a tooth enable some infertile men to father children? That's the goal of researchers in Brazil, who suggest that stem cells from human teeth can be coaxed into becoming sperm by injecting them into the testes of mice.
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