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) -- Like skin that loses elasticity, blood vessels lose their pliability and stiffen with age. In more than half of the U.S. population over 65, this stiffening of the blood vessels is accompanied by a buildup of plaque inside arterial walls -- atherosclerosis -- which can lead to blood vessel obstruction, increased stress on the heart and the risk of a heart attack. http://www.physorg.com/news154891260.html Medicine & Health Thu, 26 Feb 2009 17:23:52 EST news154891260 In a first of its kind discovery, University of Minnesota researchers have identified the "master gene" behind blood vessel development. Better understanding of how this gene operates in the early stages of development may help researchers find better treatments for heart disease and cancer. http://www.physorg.com/news152976906.html Medicine & Health Wed, 04 Feb 2009 13:35:38 EST news152976906 Researchers at the Johns Hopkins University School of Medicine have discovered how a whole class of commonly used chemotherapy drugs can block cancer growth. Their findings, reported online this week at the Proceedings of the National Academy of Sciences Early Edition, suggest that a subgroup of cancer patients might particularly benefit from these drugs. http://www.physorg.com/news151866022.html Medicine & Health Thu, 22 Jan 2009 17:00:53 EST news151866022 Contrary to a long-standing assumption that blood vessel cells in healthy tissues and those associated with tumors are similar, a new study unequivocally demonstrates that tumor blood vessel cells are far from normal. The research, published by Cell Press in the September issue of the journal Cancer Cell, identifies tumor-specific blood vessel cells that are atypically stem cell-like and have the potential to differentiate into cartilage- or bone-like tissues. http://www.physorg.com/news140092843.html Medicine & Health Mon, 08 Sep 2008 11:40:43 EST news140092843 How do blood vessel cells understand that they should organise themselves in tubes and not in layers? A research group from Uppsala University shows for the first time that a special type of "instructor" molecule is needed to accomplish this. These findings, published in the scientific journal Blood, might be an important step towards using stem cells to build new organs. http://www.physorg.com/news139232125.html Medicine & Health Fri, 29 Aug 2008 12:35:25 EST news139232125