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. In a collaborative study with the World Health Organization and seven other laboratories, researchers at the Stanford University School of Medicine have compiled a list of 93 common mutations of the AIDS virus associated with drug resistance that will be used to track future resistance trends throughout the world. http://www.physorg.com/news155558471.html Medicine & Health Fri, 06 Mar 2009 10:41:53 EST news155558471 Stem cells can thrive in segments of well-vascularized tissue temporarily removed from laboratory animals, say researchers at the Stanford University School of Medicine. Once the cells have nestled into the tissue's nooks and crannies, the so-called "bioscaffold" can then be seamlessly reconnected to the animal's circulatory system. http://www.physorg.com/news155225793.html Medicine & Health Mon, 02 Mar 2009 14:17:48 EST news155225793 More than 40 percent of women ages 18-59 experience sexual dysfunction, with lack of sexual interest - hypoactive sexual desire disorder, or HSDD - being the most commonly reported complaint, according to medical researchers. While some question the validity of this diagnosis, a multidisciplinary team from the Stanford University School of Medicine is devoted to objective investigation of such problems. http://www.physorg.com/news155225336.html Medicine & Health Mon, 02 Mar 2009 14:14:51 EST news155225336 Scientists at the Stanford University School of Medicine and Lucile Packard Children's Hospital have devised a new way to decode the immune signals that cause slow, chronic rejection of all transplanted kidneys. They've created an immune-system "atlas" that will improve doctors' ability to monitor transplanted organs and shed light on the mechanisms of gradual, cumulative kidney malfunction after transplant. http://www.physorg.com/news154632423.html Medicine & Health Mon, 23 Feb 2009 17:27:47 EST news154632423 Scientists at Stanford University School of Medicine have discovered that a commonly available non-addictive drug can prevent symptoms of withdrawal from opioids with little likelihood of serious side effects. The drug, ondansetron, which is already approved to treat nausea and vomiting, appears to avoid some of the problems that accompany existing treatments for addiction to these powerful painkillers, the scientists said. http://www.physorg.com/news154121670.html Medicine & Health Tue, 17 Feb 2009 19:35:13 EST news154121670 Postmenopausal women who take combined estrogen plus progestin menopausal hormone therapy for at least five years double their annual risk of breast cancer, according to new analyses from a major study that clearly establishes a link between hormone use and breast cancer, Stanford researchers say. The multi-center study also found that women on hormones can quickly reduce their risks of cancer simply by stopping the therapy. http://www.physorg.com/news152993944.html Medicine & Health Wed, 04 Feb 2009 18:19:34 EST news152993944 Researchers at Stanford University School of Medicine have identified a protein critical for the growth of pancreatic cancer. Blocking the expression of the protein slowed or prevented tumor growth in mice and made cultured cancer cells vulnerable to the conditions of low oxygen that occur in solid tumors. http://www.physorg.com/news152721466.html Medicine & Health Sun, 01 Feb 2009 14:42:03 EST news152721466 Last week, a presidential limousine shuttled Barack Obama to the most important job in his life. Scientists at the Stanford University School of Medicine have now identified a protein that does much the same for the telomerase enzyme - ferrying the critically important clump of proteins around to repair the ends of chromosomes that are lost during normal replication. Without such ongoing maintenance, stem cells would soon cease dividing and embryos would fail to develop. http://www.physorg.com/news152461731.html Medicine & Health Thu, 29 Jan 2009 14:29:33 EST news152461731 People with a genetic condition called Williams syndrome are famously gregarious. Scientists, looking carefully at brain function in individuals with Williams syndrome, think they may know why this is so. The researchers at the Stanford University School of Medicine showed that parts of a particular brain region known as the amygdala react more powerfully in Williams syndrome patients than in developmentally normal subjects - or in subjects with delays in development not caused by Williams syndrome - when exposed to facial expressions conveying positive emotions. http://www.physorg.com/news152299739.html Medicine & Health Tue, 27 Jan 2009 17:33:05 EST news152299739 Doctors may be implanting too many artery-opening stents and could improve patient outcomes - and ultimately save lives - if they did more in-depth measurements of blood flow in the vessels to the heart. That's the finding of a study, to be published Jan. 15 in the New England Journal of Medicine, that evaluated the benefits of a new diagnostic tool to measure blood flow and determine whether stenting was the best option. http://www.physorg.com/news151176330.html Medicine & Health Wed, 14 Jan 2009 17:25:30 EST news151176330 Scientists at the Stanford University School of Medicine and at UC-San Francisco have succeeded in isolating stem cells from human testes. The cells bear a striking resemblance to embryonic stem cells - they can differentiate into each of the three main types of tissues of the body - but the researchers caution against viewing them as one and the same. http://www.physorg.com/news150397024.html Biology Mon, 05 Jan 2009 16:57:04 EST news150397024 Few things are as tiresome as house hunting and moving. Unfortunately, metastatic cancer cells have the relocation process down pat. Tripping nimbly from one abode to another, these migrating cancer cells often prove far more deadly than the original tumor. Although little has been known about how these rogue cells choose where to put down roots, researchers at the Stanford University School of Medicine have now learned just how nefarious they are. http://www.physorg.com/news150383375.html Medicine & Health Mon, 05 Jan 2009 13:09:35 EST news150383375