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. (PhysOrg.com) -- Despite a 30-year lifespan that gives ample time for cells to grow cancerous, a small rodent species called a naked mole rat has never been found with tumors of any kind -and now biologists at the University of Rochester think they know why. http://www.physorg.com/news175792057.html Biology Mon, 26 Oct 2009 16:40:01 EST news175792057 A team of UCSF researchers has for the first time used tiny molecules called microRNAs to help turn adult mouse cells back to their embryonic state. These reprogrammed cells are pluripotent, meaning that, like embryonic stem cells, they have the capacity to become any cell type in the body. http://www.physorg.com/news158770530.html Biology Sun, 12 Apr 2009 15:56:05 EST news158770530 The DNA in our cells is constantly under assault from oxygen, the sun's radiation and environmental stresses. Most of the time, our cells can repair the damage before it gets copied into a permanent mutation that could lead to cancer. http://www.physorg.com/news146408521.html Medicine & Health Thu, 20 Nov 2008 13:02:01 EST news146408521