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. A network of proteins underlying the plasma membrane keeps epithelial cells in shape and maintains their orderly hexagonal packing in the mouse lens, say Nowak et al. The study will appear in the September 21, 2009 issue of the Journal of Cell Biology (online September 14). http://www.physorg.com/news172145515.html Biology Mon, 14 Sep 2009 11:12:44 EST news172145515 Memories aren't made of actin filaments. But their assembly is crucial for long-term potentiation (LTP), an increase in synapse sensitivity that researchers think helps to lay down memories. In the July 13, 2009 issue of the Journal of Cell Biology, Rex et al. reveal that LTP's actin reorganization occurs in two stages that are controlled by different pathways, a discovery that helps explain why it is easy to encode new memories but hard to hold onto them. http://www.physorg.com/news166695446.html Biology Mon, 13 Jul 2009 09:18:04 EST news166695446 Based on research that reveals new insight into mechanisms that allow invasive tumor cells to move, researchers at the Mayo Clinic campus in Florida have a new understanding about how to stop cancer from spreading. A cancer that spreads elsewhere in the body, known as metastasis, is the process that most often leads to death from the disease. http://www.physorg.com/news157559721.html Biology Sun, 29 Mar 2009 15:36:30 EST news157559721 Researchers from the Ludwig Institute for Cancer Research at the University of California, San Diego School of Medicine have identified a key step required for cell division in a study that could help improve therapies to treat cancer. Their work describing the mechanism of the contractile ring - a structure that pinches the mother cell into two daughter cells - has been published in the December 5 issue of the journal Science. http://www.physorg.com/news148049853.html Biology Tue, 09 Dec 2008 12:57:33 EST news148049853 New research suggests that a select group of compounds that interact with a protein in the brain might be used in the early diagnosis and treatment of Alzheimer's disease and other dementia disorders. http://www.physorg.com/news138534992.html Medicine & Health Thu, 21 Aug 2008 10:56:32 EST news138534992 NGC 1275 is one of the closest giant elliptical galaxies and lies at the centre of the Perseus Cluster of galaxies. It is an active galaxy, hosting a supermassive black hole at its core, which blows bubbles of radio-wave emitting material into the surrounding cluster gas. Its most spectacular feature is the lacy filigree of gaseous filaments reaching out beyond the galaxy into the multi-million degree X-ray emitting gas that fills the cluster. http://www.physorg.com/news138455993.html Space & Earth Wed, 20 Aug 2008 12:59:53 EST news138455993