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. The work of Forsyth scientist Peter Jezewski, DDS, Ph.D., has revealed that duplication and diversification of protein regions ('modules') within ancient master control genes is key to the understanding of certain birth disorders. Tracing the history of these changes within the proteins coded by the Msx gene family over the past 600 million years has also provided additional evidence for the ancient origin of the human mouth. http://www.physorg.com/news151141584.html Biology Wed, 14 Jan 2009 07:46:24 EST news151141584 (PhysOrg.com) -- Electrical engineering researchers at the University of Arkansas have demonstrated that magnetic nanotubes combined with nerve growth factor can enable specific cells to differentiate into neurons. The results from in vitro studies show that magnetic nanotubes may be exploited to treat neurodegenerative disorders such as Parkinson`s disease and Alzheimer`s disease because they can be used as a delivery vehicle for nerve growth factor. http://www.physorg.com/news151077655.html Nanotechnology Tue, 13 Jan 2009 14:00:55 EST news151077655 is no cure for spinal muscular atrophy (SMA), a genetic disorder that causes the weakening of muscles and is the leading genetic cause of infant death, but University of Missouri researchers have discovered a new therapeutic target that improves deteriorating skeletal muscle tissue caused by SMA. The new therapy enhanced muscle strength, improved gross motor skills and increased the lifespan in a SMA model. http://www.physorg.com/news150556755.html Medicine & Health Wed, 07 Jan 2009 13:19:15 EST news150556755 (PhysOrg.com) -- Often thought to be hobbled by corruption, poor infrastructure and a weak financial system, African exporters rose to the opportunities presented by a U.S. trade liberalization policy, a recent University of Toronto study has found. http://www.physorg.com/news150473407.html Other Sciences Tue, 06 Jan 2009 14:10:07 EST news150473407 Cancer and cell biology experts at the University of Cincinnati (UC) have identified a new tumor suppressor that may help scientists develop more targeted drug therapies to combat lung cancer. http://www.physorg.com/news150389078.html Medicine & Health Mon, 05 Jan 2009 14:44:38 EST news150389078 A research team from the University of California, San Diego School of Medicine has identified a protein produced by cancerous lung epithelial cells that enhances metastasis by stimulating the activity of inflammatory cells. Their findings, to be published in the January 1 issue of the journal Nature, explain how advanced cancer cells usurp components of the host innate immune system to generate an inflammatory microenvironment hospitable for the metastatic spread of lung cancer. The discovery could lead to a therapy to limit metastasis of this most common lethal form of cancer. http://www.physorg.com/news149951977.html Medicine & Health Wed, 31 Dec 2008 13:19:37 EST news149951977 Researchers at The Ohio State University Comprehensive Cancer Center have discovered that a molecule implicated in leukemia and lung cancer is also important in muscle repair and in a muscle cancer that strikes mainly children. http://www.physorg.com/news149860013.html Medicine & Health Tue, 30 Dec 2008 11:46:53 EST news149860013 Researchers have discovered two enzymes that, when combined, could be involved in the earliest stages of cancer. Manipulating these enzymes genetically might lead to targeted therapies aimed at slowing or preventing the onset of tumors. http://www.physorg.com/news149345232.html Medicine & Health Wed, 24 Dec 2008 12:47:12 EST news149345232 (PhysOrg.com) -- MIT engineers have built a device that gives them an unprecedented view of three-dimensional cell growth and migration, including the formation of blood vessels and the spread of tumor cells. http://www.physorg.com/news148659608.html Chemistry Tue, 16 Dec 2008 14:20:08 EST news148659608 Using stem cell lines not typically combined, researchers at Columbia University Medical Center have designed a new way to "grow" bone and other tissues. http://www.physorg.com/news148571674.html Medicine & Health Mon, 15 Dec 2008 13:54:34 EST news148571674 Modern day concentrations of ground level ozone pollution are decreasing the growth of trees in the northern and temperate mid-latitudes, as shown in a paper publishing today in Global Change Biology. Tree growth, measured in biomass, is already 7% less than the late 1800s, and this is set to increase to a 17% reduction by the end of the century. http://www.physorg.com/news148046587.html Space & Earth Tue, 09 Dec 2008 12:03:07 EST news148046587 (PhysOrg.com) -- Photoacoustics can be used to show the development of blood capillaries in and around a tumour. PhD student, Kiran Kumar Thumma, of the University of Twente (Netherlands) is the first to use the technology to follow the development of a tumour over a period of time. His results show that the application of photoacoustics is a useful addition to the methods usually used in tumour research. Mr Thumma will be awarded his PhD at the faculty of Science and Technology today. http://www.physorg.com/news147706264.html Medicine & Health Fri, 05 Dec 2008 13:31:04 EST news147706264 Men who survived childhood leukemia treatment into adulthood were more likely to have low bone mineral density than other adults their age, putting them at risk of osteoporosis and bone fractures, according to a new study. http://www.physorg.com/news147531034.html Medicine & Health Wed, 03 Dec 2008 12:50:34 EST news147531034 Prostate cancer - and perhaps other cancers - promotes the growth of new nerves and the branching axons that carry their messages, a finding associated with more aggressive tumors, said researchers from Baylor College of Medicine in the first report of the phenomenon that appears today in the journal Clinical Cancer Research. http://www.physorg.com/news147358690.html Medicine & Health Mon, 01 Dec 2008 12:58:10 EST news147358690 (PhysOrg.com) -- Zipf`s law is a testament to the order in our world, showing that the same patterns emerge in a wide variety of situations. The linguist George Kingsley Zipf first proposed the law in 1949, when he noticed that the distribution of words in a newspaper, book, or other literary article always followed the same pattern. http://www.physorg.com/news147353055.html Physics Mon, 01 Dec 2008 11:24:15 EST news147353055 A new study confirms that exercise can reverse the age-related decline in the production of neural stem cells in the hippocampus of the mouse brain, and suggests that this happens because exercise restores a brain chemical which promotes the production and maturation of new stem cells. http://www.physorg.com/news146219732.html Medicine & Health Tue, 18 Nov 2008 08:35:32 EST news146219732 A new study shows that a drug that increases the release of growth hormone failed to slow the rate of progression of Alzheimer's disease in humans. The new research is published in the November 18, 2008, print issue of Neurology, the medical journal of the American Academy of Neurology. http://www.physorg.com/news146160383.html Medicine & Health Mon, 17 Nov 2008 16:06:23 EST news146160383 (PhysOrg.com) -- Based on then ground-breaking modelling, the forecasts of global ecological and economic collapse by mid-century contained in the controversial 1972 book; The Limits to Growth, are still ‘on-track` according to new CSIRO research. http://www.physorg.com/news145632510.html Space & Earth Tue, 11 Nov 2008 13:28:30 EST news145632510 It is well known that plants growing under unfavourable conditions are generally smaller than those growing in stress-free conditions: indeed it is estimated that in the US, abiotic stress reduces the yield of agricultural crops by an average of 22%. A spectacular example of the effect of stress - in this case, repeated wounding - on plant growth is given by bonsai trees, in which every aspect of their stature, including height, girth, and size of leaves, is uniformly reduced to as little as 5% of that of their untreated sister trees. However, the mechanism of wound-induced stunting remains obscure. http://www.physorg.com/news145623433.html Biology Tue, 11 Nov 2008 10:57:13 EST news145623433 (PhysOrg.com) -- The well-documented worldwide decline in the number of bees and other pollinators is not, at this stage, limiting global crop yields, according to the results of an international study published in the latest edition of the respected science journal, Current Biology. http://www.physorg.com/news145545325.html Biology Mon, 10 Nov 2008 13:15:25 EST news145545325 Growth hormone treatment may significantly increase final height in children diagnosed with short stature, even in cases where the child is not growth hormone deficient, according to a new study accepted for publication in The Endocrine Society's Journal of Clinical Endocrinology & Metabolism (JCEM). http://www.physorg.com/news145181549.html Medicine & Health Thu, 06 Nov 2008 08:12:29 EST news145181549 Researchers at the University of Virginia Health System report that a daily single oral dose of an investigational drug, MK-677, increased muscle mass in the arms and legs of healthy older adults without serious side effects, suggesting that it may prove safe and effective in reducing age-related frailty. http://www.physorg.com/news145020886.html Medicine & Health Tue, 04 Nov 2008 11:34:46 EST news145020886 (PhysOrg.com) -- Popular cholesterol-busting drugs -- statins -- appear to lower men's prostate-specific antigen (PSA) values along with their cholesterol levels, according to researchers in the Duke Prostate Center and the Durham Veterans Affairs Medical Center. But whether the drugs prevent prostate cancer growth or just mask it is not known yet. http://www.physorg.com/news144427722.html Medicine & Health Tue, 28 Oct 2008 15:48:42 EST news144427722 The leading cause of death in all cancer patients continues to be the resistance of tumor cells to chemotherapy, a form of treatment in which chemicals are used to kill cells. http://www.physorg.com/news143912097.html Medicine & Health Wed, 22 Oct 2008 16:34:57 EST news143912097 It's a 500-pound gorilla that Robert Criss, Ph.D., professor of earth and planetary sciences in Arts & Sciences at Washington University in St. Louis, sees standing on the speaker's dais at political rallies, debates and campaigns. Its name is population growth. http://www.physorg.com/news142676415.html Space & Earth Wed, 08 Oct 2008 09:20:15 EST news142676415 A protein that enables nerve cells to communicate with each other plays a key role in controlling the developing nervous system. Research into how that protein helps precise connections to form among nerve cells may provide a basis for eventual treatments for patients who suffer injuries to their nervous system, including spinal cord injury. http://www.physorg.com/news142616273.html Medicine & Health Tue, 07 Oct 2008 16:37:53 EST news142616273 Using computer models and live cell experiments, biomedical engineers at the Johns Hopkins University School of Medicine have discovered more than 100 human protein fragments that can slow or stop the growth of cells that make up new blood vessels. http://www.physorg.com/news142341094.html Biology Sat, 04 Oct 2008 12:11:34 EST news142341094 A novel anti-tumor vaccine for neuroblastoma and melanoma developed by scientists and clinicians at Children's National Medical Center in collaboration with investigators from the University of Iowa is showing significant impact on tumor growth in mice, according to new research published in the October edition of the research journal Cancer Immunology, Immunotherapy. The vaccine uses the tumor's own protein to induce an immune system response, allowing for a personalized approach to treatment. http://www.physorg.com/news142172992.html Medicine & Health Thu, 02 Oct 2008 13:29:52 EST news142172992 The latest figures on the global carbon budget to be released in Washington and Paris indicate a four-fold increase in growth rate of human-generated carbon dioxide emissions since 2000. http://www.physorg.com/news142158397.html Space & Earth Thu, 02 Oct 2008 09:26:37 EST news142158397 Researchers at the University of Pennsylvania School of Medicine have found that some proteins of the immune system can promote tumor growth. Investigators found that instead of fighting tumors, the protein C5a, which is produced during an immune response to a developing tumor, helps tumors build molecular shields against T-cell attack. These findings appeared online this week in Nature Immunology. http://www.physorg.com/news141922882.html Medicine & Health Mon, 29 Sep 2008 16:01:22 EST news141922882