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Scientists reported Thursday they had figured out a way to make primitive human sperm out of skin cells, an advance that could someday help infertile men have children.
"I probably get 200 emails a year from people who are infertile, and very often the heading on the emails is: Can you help me?" says of Montana State University, who led the research when she was at Stanford University.
In a published in the journal Cell Reports, Pera and her colleagues describe what they did. They took skin cells from infertile men and manipulated them in the laboratory to become induced pluripotent stem cells, which are very similar to human embryonic stem cells. That means they have the ability to become virtually any cell in the body.