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. Telomeres, structures that cap the ends of cells' chromosomes, grow shorter with each round of cell division unless a specialized enzyme replenishes them. Maintaining telomeres is thought to be important for healthy aging and cancer prevention. http://www.physorg.com/news155413788.html Medicine & Health Wed, 04 Mar 2009 18:30:10 EST news155413788 Vaccines against H5N1 influenza will be critical in countering a possible future pandemic. Yet public health experts agree that the current method of growing seasonal influenza vaccines in chicken eggs is slow and inefficient. http://www.physorg.com/news155142871.html Medicine & Health Sun, 01 Mar 2009 15:15:15 EST news155142871 Distributed around the body, dendritic cells act as the security alarms of the immune system. After sensing the presence of intruders, dendritic cells can transmit the alarm to white blood cells or tell them to relax, depending on the signals they send out. http://www.physorg.com/news155138121.html Medicine & Health Sun, 01 Mar 2009 13:55:47 EST news155138121 The endocrinologic basis of pediatric critical illness hypergylcemia (CIH) differs depending on the disease processes. Researchers writing in BioMed Central's open access journal Critical Care describe how both peripheral insulin resistance and primary beta-cell dysfunction can cause CIH in children. http://www.physorg.com/news154869651.html Medicine & Health Thu, 26 Feb 2009 11:21:47 EST news154869651 Transplanting cells that replenish blood vessels can also restore nerve function in an animal model of diabetic neuropathy, Emory researchers have found. The results are described online this week in the journal Circulation. http://www.physorg.com/news152977005.html Medicine & Health Wed, 04 Feb 2009 13:37:29 EST news152977005 Since the introduction of the life-saving clot-busting drug tPA more than a decade ago, evidence has been accumulating that tPA (tissue-type plasminogen activator) can be a double-edged sword for a brain affected by stroke. Although it remains the only FDA-approved treatment for acute stroke, tPA can also contribute to inflammation and brain cell damage. http://www.physorg.com/news151928524.html Medicine & Health Fri, 23 Jan 2009 10:22:44 EST news151928524 Two non-surgical, non-pharmacological treatments for gastroesophageal reflux disease (GERD) both appear effective in reducing medication use and improving voice and swallowing symptoms, according to a report in the January issue of Archives of Surgery, one of the JAMA/Archives journals. One type of therapy also appears effective for reducing heartburn and cough, whereas the other may be associated with a reduction in regurgitation. http://www.physorg.com/news151610498.html Medicine & Health Mon, 19 Jan 2009 18:02:16 EST news151610498 Researchers have identified a biochemical switch required for nerve cells to respond to DNA damage. The finding, scheduled for advance online publication in Nature Cell Biology, illuminates a connection between proteins involved in neurodegenerative disease and in cells' response to DNA damage. http://www.physorg.com/news151509128.html Biology Sun, 18 Jan 2009 13:52:08 EST news151509128 In a major advance in genealogical research, African-Americans will be able to trace the routes of slave ships that transported 12.5 million of their ancestors from Africa as early as the 16th century. http://www.physorg.com/news150463617.html Technology Tue, 06 Jan 2009 11:26:57 EST news150463617 Childhood trauma is a potent risk factor for development of chronic fatigue syndrome (CFS), according to a study by researchers at Emory University School of Medicine and the Centers for Disease Control and Prevention (CDC). The study is published in the Jan. 5, 2009 Archives of General Psychiatry. http://www.physorg.com/news150396443.html Medicine & Health Mon, 05 Jan 2009 16:47:23 EST news150396443 Neurologists have observed for decades that Lewy bodies, clumps of aggregated proteins inside cells, appear in the brains of patients with Parkinson's disease and other neurodegenerative diseases. http://www.physorg.com/news150091261.html Medicine & Health Fri, 02 Jan 2009 04:01:01 EST news150091261