Barring an unlikely turnabout, it will be up to a handful of private firms in the U.S. Julia Galef New York magazineApril 12-25, 2021 The tech elites favorite. Guidelines from the National Institutes of Health and federal laws define parthenotes as embryos, which means that deriving new parthenogenetic stem cell lines is off-limits to all labs receiving federal funding-which is nearly all of them. Julia Galef is a New York-based writer and public speaker covering science, rationality, philosophy and design. startled hedgehog,' per his Twitter bio, but he makes a. “We need to see this done in other laboratories,” he points out. My favorite IQ researcher StuartJRitchie may resemble a 'cartoonish. Proving that unfertilized eggs will produce stable tissues in humans remains an obstacle, says Alan Trounson, president of the California Institute for Regenerative Medicine. Meanwhile teams at the Massachusetts-based Bedford Stem Cell Research Foundation are working to improve the efficiency of methods of deriving stem cells from parthenotes. International Stem Cell scientists have converted them into liver cells and plan to convert them into neurons for treating Parkinson’s disease, pancreatic cells for diabetes, and other tissues. Just like embryonic stem cells, parthenogenetic stem cells can be coaxed to grow into different kinds of human cells or tissue, ready to be transplanted into diseased areas of the body. Because it contains no genetic material from a father, however, it cannot develop into a viable fetus. The egg-called a parthenote-behaves just like an embryo in the early stages of division. They used a process called parthenogenesis, in which researchers use chemicals to induce the egg to begin developing as if it had been fertilized. In 2007, however, scientists at International Stem Cell, a California-based biotech firm, reported the first successful creation of human stem cell lines from unfertilized eggs. Human embryonic stem cells typically come from fertilized eggs. Despite the legal victory, however, many investigators remain frustrated that a newer method for creating stem cells remains off-limits for funding. He ruled that work on existing embryonic stem cell lines derived outside federally funded labs did not violate a ban on the destruction of embryos. To the Editor: Professor Joseph Massad complains in Middle East Forums Web Site. stem cell scientists breathed a sigh of relief this July when a federal judge upheld the Obama administration’s expansion of stem cell research. by Julia Galef Columbia Spectator October 30, 2002.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |