Sperm grown in the lab fertilises eggs
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Cells critical to sperm development have been grown in the lab and used to father baby mice, US researchers say. They said the development could lead to easier ways to genetically manipulate animals, and said
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Mixing cells and eggs to be allowed in search for new medical treatments.
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Scientists in Australia have developed a  sperm-sorting machine which may help infertile men to become  fathers.
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Scientists have succeeded in growing outside the body the special stem cells that direct the remarkably prolific process of sperm production.
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Two British clinics are pioneering a procedure that will allow human eggs to be grown in the laboratory from ovarian tissue samples, a newspaper said Saturday.
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NEW YORK -- Scientists say they've created embryonic stem cells by stimulating unfertilized eggs, a significant step toward producing transplant tissue that's genetically matched to women.
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A procedure that encourages an egg to begin embryo development without being fertilized could suggest a new way to produce stem cells, at least for certain patients.
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Using a technique borrowed from in vitro fertilization, researchers have for the first time shown that it is possible to create new embryonic stem cell colonies without destroying human embryos. Corrected article
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WASHINGTON -- A procedure that encourages an egg to begin embryo development without being fertilized could suggest a new way to produce stem cells, at least for certain patients.
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Scientists working at a British laboratory have achieved one of the most controversial breakthroughs ever made in the field of stem cell science by taking cells from dead embryos and turning them into living tissue.
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British scientists say they have created human embryos containing DNA from two women and a man in a procedure that researchers hope might be used one day to produce embryos free of inherited diseases.
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The birth of 13 Italian children from frozen eggs has marked a step towards routine use of the reproductive approach. Egg freezing, along with ovary freezing, promises to help women preserve their fertility
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They report that they injected nine male macaque monkeys with Eppin, a protein from the testes. Seven became infertile, and of these five became fertile again when the treatment stopped.
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Women may be able to have unfertilised eggs routinely frozen during fertility treatment rather than just embryos after research.
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The world of male contraception has been limited to condoms and vasectomies. But researchers now point to a new method that shows promise &#151; a shot that prompts an immune reaction to a protein produced in the male reproductive system.
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What might have been a golden egg lays an egg.
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U.S. scientists have discovered how mammalian eggs undergo maturation through an intricate process of asymmetric cell division.