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. It is thought that the elevated levels of urea (the byproduct of protein breakdown that is excreted in the urine) in patients with end-stage kidney failure are not particularly toxic. http://www.physorg.com/news178952586.html Medicine & Health Wed, 02 Dec 2009 06:00:01 EST news178952586 Researchers at the Virginia Bioinformatics Institute (VBI) at Virginia Tech and Montana State University have discovered a fungal protein that plays a key role in causing disease in plants and animals and which also shields the pathogen from oxidative stress. The researchers have found that the fungal protein TmpL is critical for the infection of host tissue and helps these pathogens regulate oxidative stress responses that are caused by the presence of destructive reactive oxygen species, a natural feature of the adaptive response to infection. http://www.physorg.com/news176731093.html Biology Fri, 06 Nov 2009 12:10:01 EST news176731093 One of the many mysteries of Alzheimer's disease is how protein-like snippets called amyloid-beta peptides, which clump together to form plaques in the brain, may cause cell death, leading to the disease's devastating symptoms of memory loss and other mental difficulties. http://www.physorg.com/news176551843.html Chemistry Wed, 04 Nov 2009 10:21:54 EST news176551843 (PhysOrg.com) -- A Purdue University researcher has discovered that the amount of an enzyme present in neurons can affect the mechanism thought to cause cell death in Alzheimer's disease patients and may have applications for other diseases such as stroke and heart attack. http://www.physorg.com/news174055338.html Medicine & Health Tue, 06 Oct 2009 14:10:01 EST news174055338 (PhysOrg.com) -- Researchers at the University of Glasgow believe they have found a potential new treatment for cardiovascular disease which reduces blood pressure. http://www.physorg.com/news165510349.html Medicine & Health Mon, 29 Jun 2009 18:40:03 EST news165510349 Researchers at the University of Pittsburgh have developed a fluorescent substance that glows bright green when exposed to even minute amounts of ozone in the air and in biological samples such as human lung cells. A molecule consisting of three oxygen atoms, ozone is at once a harmful pollutant and lung irritant, and a possible natural weapon that certain research suggests the human body employs against infections. http://www.physorg.com/news164901335.html Chemistry Mon, 22 Jun 2009 14:57:04 EST news164901335 For decades, microbiologists assumed that macrophages, immune cells that can engulf and poison bacteria and other pathogens, killed microbes by damaging their DNA. A new study from the University of Illinois disproves that. http://www.physorg.com/news160048583.html Biology Mon, 27 Apr 2009 10:56:58 EST news160048583 A new study reveals the mechanism by which a genetic mutation linked with Parkinson's disease (PD) renders dopamine neurons particularly vulnerable to cell injury and death. The research is published by Cell Press in the March 13th issue of the journal Molecular Cell. http://www.physorg.com/news156085299.html Medicine & Health Thu, 12 Mar 2009 14:02:12 EST news156085299 Researchers have found that a technique used to visualize amyloid fibers in the laboratory might have the potential to destroy them in the clinic. The technique involves zapping the fluorescently-tagged fibers with a laser, which can inhibit their growth and degrade them. http://www.physorg.com/news150560905.html Biology Wed, 07 Jan 2009 14:28:25 EST news150560905 Researchers have created a new family of fluorescent probes called hydrocyanines that can be used to detect and measure the presence of reactive oxygen species. Reactive oxygen species are highly reactive metabolites of oxygen that have been implicated in a variety of inflammatory diseases, including cancer and atherosclerosis. http://www.physorg.com/news148561277.html Chemistry Mon, 15 Dec 2008 11:01:17 EST news148561277