http://www.physorg.com/ en-us Physorg.com internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine. Researchers in human genetics have long known that expansions of GAA repeats - resulting in this nucleotide triplet repeating hundreds or thousands of times - cause the most common hereditary neurological disorder known as Friedreich's ataxia. There is no cure for this condition, which damages the nervous system and can result in heart disease. http://www.physorg.com/news166360897.html Biology Thu, 09 Jul 2009 12:50:01 EST news166360897 Coaxing a patient's own cells to hunt down and tackle infected or diseased cells is a promising therapeutic approach for many disorders. But until now, efforts to follow these specially modified cells after their reintroduction to the body have relied on short-term monitoring techniques that don't give a complete picture of the cells' status. http://www.physorg.com/news146219840.html Medicine & Health Tue, 18 Nov 2008 08:37:20 EST news146219840