What if men with fertility problems could grow new sperm from their own skin cells? A team of researchers has made this possible by growing human gametes in a lab. Scientists in Spain used a cocktail of genes to turn human skin cells into germ cells which can eventually be developed into sperm or eggs. Researcher Carlos Simon from the Valencian Infertility Institute said What to do when someone who wants to have a child lacks gametes (eggs or sperm)? This is the problem we want to address: to be able to create gametes in people who do not have
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