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In the future, women may be able to produce sperm, said scientist, claiming that it had managed to create sperm cells early in development of bone marrow cells. Jobs, which is now his team, aims to raise full-fledged sperm cells from bone marrow as a method of restoring fertility of young men who have ever been treated for cancer. Prior to the start of clinical trials may take up to five years. Professor Karim Nayerniya and his colleagues have completed experiments of this kind at samkah mice. For several months, they have studied whether the method applied so broadly as to the body of women, too, could, in principle, serve as a source of sperm. Along with the cloning of a gift to humanity faces a second technology that will make men redundant element. ” Getting the sperm infancy of organisms four male volunteers was the subject of a publication in today’s issue of the journal Reproduction : Biology fusion. ” The author made Neyerniya professor from the Institute of Cell east England in Nyukasle-na-Tayne. Some experts call for cautious about such statements, calling into question the safety of using sperm from stem cells, and one of the experts expressed scepticism about the idea of sperm cells from women. The experiment, which was conducted at University of Göttingen in Germany, Professor Nayerniya and his team used bone marrow male volunteers, which provide “parental cell.” These stem cells have been found, could serve as a basis for growing other tissues, such as muscle. In laboratory studies, scientists stimulate stem cells. As a result, they have cells that appear normal, but genetic markers indicated that they were partially developed sperm cells, known as “spermatogonialnye” stem cells. Most men spermatogonialnye stem cells eventually develop into mature sperm, but the experiment this stage has not yet been reached, said Professor Nayerniya. According to him, it was backed up by a study conducted in mice Ronaldom Sverdloffom professor of the University of California at Los Angeles, who in an article in the American Journal of Pathology indicates that these stem cells can be turned into sperm cells. Professor Nayerniya said : “We are very encouraged by this discovery. Our next goal is to see whether we can achieve spermatogonialnyh turning stem cells into fully fledged sperm cells. ” He will have to ask permission to conduct similar experiments with bone marrow rights in Newcastle, where the Institute of Cell Center of Life “reported on the world’s first cloned human embryo. With regard to the cultivation of cells from female sperm cells, he said : “We have evidence that this is possible, at least in the case of mice.” However, in order to confirm further experiments. Professor Nayerniya concerned that the government may be regarded as unlawful treatment based on this work. The White Paper said that the use of artificial gametes, the germ cells-may “give rise to a huge increase in the number of new capabilities, including enabling the creation of a child by combining the genetic material of two women.” Professor Robin Lovell Bedzh from the National Institute for Medical Research in Mill-hill in London said that there are fundamental reasons why the bone marrow cells of women may not degenerate into sperm cells. Men are Y-hromosoma and X-hromosoma, while women-two syndrome. Professor Lovell Bedzh said that Y-hromosoma is essential for sperm cells, and two H-hromosom “incompatible with the production of sperm.” “The only truly defining feature of gamete is its ability to meyozu-division, which resulted in ejaculation and spermatozoidah remains only one chromosome, instead of pairs of chromosomes, as in all other cells. The authors contend that they have not yet determined whether to do so provided they Cell but it is crucial if they want to substantiate their allegations. ” According to the opponent, in the work contained “several misleading statements”, cites a 2006 “questionable content”, and it is also based on the use of molecular markers to determine the “alleged” sperm cells, a far cry from the original research possibilities of using sperm obtained in a way to reproduce. Professor Harry Moore of the University of Sheffield said : “We must be extremely careful. Unfortunately, the manipulation of stem cells may lead to a permanent genetic changes that could make them unsafe to use. ” Josephine Kvintavall from Comment on Reproductive Ethics said : “The irony of the situation, that one of the few innovations in reproductive medicine, which the government wants to ban, which is something by the Commission on Reproductive Ethics prepared to endorse. But sterile males early to rejoice. In this work too much exaggeration. As for the sperm cells of women, any classman biological faculty will ask : “Where did the same deals Y-hromosoma?”