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. New research reveals a model of host-pathogen interaction that explains how the immune system finds and destroys cells infected with a potentially lethal brain virus. The study, published online on February 5th in Immunity, a Cell Press publication, may lead to new treatments for West Nile virus (WNV) and other similar viral infections. http://www.physorg.com/news153059154.html Medicine & Health Thu, 05 Feb 2009 12:26:33 EST news153059154 New cells are born every day in the brain's hippocampus, but what controls this birth has remained a mystery. Reporting in the January 1 issue of Science, neuroscientists at the Johns Hopkins University School of Medicine have discovered that the birth of new cells, which depends on brain activity, also depends on a protein that is involved in changing epigenetic marks in the cell's genetic material. http://www.physorg.com/news150657983.html Medicine & Health Thu, 08 Jan 2009 17:26:23 EST news150657983 Researchers at UT Southwestern Medical Center have shown in mice how and under what circumstances the gut activates its defensive mechanisms to prevent illness. http://www.physorg.com/news147980625.html Biology Mon, 08 Dec 2008 17:43:45 EST news147980625