Sperm grown from the frozen testicle tissue of newborn mice has been used to produce healthy offspring, in a hopeful development for men left infertile by childhood cancer treatment, researchers said Tuesday. In a process called spermatogenesis, the sperm was grown in a lab from testicle tissue that had been frozen for more than four months, they said, then deposited directly into immature egg cells to yield mouse babies. The offspring were healthy and able to reproduce in adulthood, the study authors from Japan wrote in the journal Nature Communications. Cryopreservation of testicle tissue taken from boys due to receive cancer treatment has long been mooted as a way of preserving their fatherhood prospects.
via Health News Headlines - Yahoo News
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