March 27, 2014 |
As new revelations further discredit a highly publicized Japanese study on the use of acid to create so-called STAP stem cells, scientists in the U.S. have quietly announced a research breakthrough that involves a more traditional means of producing the amazingly versatile cells. In a paper published Wednesday in the journal Nature, researchers said they had successfully generated embryonic stem cells using fertilized mouse embryos -- a feat that many scientists had thought was impossible.
March 10, 2009 |
With the stroke of a pen, President Obama cleared the way Monday for the National Institutes of Health and other federal agencies to fund research using all kinds of human embryonic stem cells. "Scientists believe these tiny cells may have the potential to help us understand, and possibly cure, some of our most devastating diseases and conditions," Obama said at the signing ceremony. Obama's executive order removes funding restrictions put in place by President George W.
July 24, 2009 |
News that Chinese researchers have succeeded in growing healthy living mice from mouse skin cells takes scientists a significant step closer to human cloning, experts say, and is thus likely to reopen debate about the ethics of such reproductive techniques. The new feat -- in which animals were grown from cells that had been reverted back to their embryonic state -- is technically different from cloning. But the outcome is the same in both cases: a genetically identical copy of the donor animal.
February 20, 2005 |
Alone at his computer, drool sliding down his chin, Tom Hill searched the Internet for anything that could save him. His 55-year-old body was gradually shutting down. His muscles twitched uncontrollably. He could no longer talk, so he scribbled notes to communicate with his wife, Valerie. Seven months earlier, he had been diagnosed with amyotrophic lateral sclerosis, also known as ALS or Lou Gehrig's disease — an incurable deterioration of the nervous system that spares the cognitive parts of the brain, leaving its victims sharply aware as they slowly die. The doctors told him there was no way to reverse the disease — no drugs, no surgeries, no other therapies.
March 7, 2009 |
Making good on a popular campaign pledge, President Obama will sign an executive order Monday rescinding restrictions on federal funding for human embryonic stem cell research, administration officials said Friday -- instantly making hundreds of millions of new dollars available for the controversial science.
September 11, 2013 |
Researchers have reprogrammed cells inside living mice -- and have discovered that the pluripotent stem cells created in the process are even more flexible than those derived from embryos or grown in laboratory dishes. Someday the achievement might help scientists devise ways to treat human disease by directly regenerating tissues within human patients, said Manuel Serrano, an investigator at the Spanish National Cancer Research Center in Madrid and senior author of a study ( abstract here )