Scientists have succeeded in growing sperm in test tube for the primary time, potentially opening the way in which to curing male infertility, and young boys undergoing chemotherapy for testicular cancer could now have the ability to father their very own kids as grownups. The sperm was produced in a test tube from cells taken from a new child mouse testicles and then injected into eggs to produce 12 healthy babies, 4 male and eight female, capable of reproduce themselves in adulthood. Takehiko Ogawa, urologist at Yokohama City College in Japan, mentioned the manufacturing of sperm within the testes is without doubt one of the most complicated processes in the physique, experiences the Telegraph. It has by no means been reproduced in a check tube in mammals before. The researchers achieved the feat by offering many of the cellular elements discovered in the testicles in a dish and watched as the stem cells grew into sperm cells. They then used IVF (in vitro fertilisation) techniques to supply male and female offspring that have been themselves fertile. "The obtained sperm resulted in healthy and reproductively competent offspring," said the researchers, whose findings have been revealed in Nature. Ogawa and colleagues stated: "We have now demonstrated that the organ tradition circumstances, without circulatory methods in vivo (within the living physique), can assist the entire spermatogenesis (sperm production) of mice."