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) -- Analysis of a rock type found only in the world's oldest oceans has shed new light on how large animals first got a foothold on the Earth. http://www.physorg.com/news171722551.html Space & Earth Wed, 09 Sep 2009 14:20:05 EST news171722551 Earth's 4.5-billion-year history is filled with several turning points when temperatures changed dramatically, asteroids bombarded the planet and life forms came and disappeared. But one of the biggest moments in Earth's lifetime is the Cambrian explosion of life, roughly 540 million years ago, when complex, multi-cellular life burst out all over the planet. http://www.physorg.com/news166288435.html Space & Earth Wed, 08 Jul 2009 16:14:18 EST news166288435 In Washington state, oysters in some areas haven't reproduced for four years, and preliminary evidence suggests that the increasing acidity of the ocean could be the cause. In the Gulf of Mexico, falling oxygen levels in the water have forced shrimp to migrate elsewhere. http://www.physorg.com/news163825450.html Space & Earth Wed, 10 Jun 2009 04:04:39 EST news163825450 Tumors need a healthy supply of blood to grow and spread. Researchers at the Stanford University School of Medicine have identified a molecule that regulates blood vessel growth that is often found at less-than-normal levels in human tumors. Blocking the expression of the molecule, called PHD2, allows human cancer cells to grow more quickly when implanted into mice and increases the number of blood vessels feeding the tumor. http://www.physorg.com/news163084699.html Medicine & Health Mon, 01 Jun 2009 14:19:16 EST news163084699 The majority of men who receive one of the standard treatments for localized prostate cancer - surgery or radiation therapy - have an excellent outcome. http://www.physorg.com/news162651414.html Medicine & Health Wed, 27 May 2009 13:57:13 EST news162651414 Fox Chase Cancer Center researchers have discovered that low-oxygen regions in prostate tumors can be used to predict a rise in prostate-specific antigen (PSA) levels, a marker of tumor recurrence in prostate cancer. The long-term study results will be presented at the 2009 American Society of Clinical Oncology annual meeting in Orlando, FL. http://www.physorg.com/news161629517.html Medicine & Health Fri, 15 May 2009 18:05:36 EST news161629517 Beaches in the Gulf tourism hub of Dubai have been plagued by a bloom of algae known as the "red tide" that has killed fish and is potentially harmful to humans, a municipality official said on Tuesday. http://www.physorg.com/news158333625.html Space & Earth Tue, 07 Apr 2009 14:34:13 EST news158333625 If someone ever calls you a "dirty rat," consider it a compliment. A new discovery published online in the FASEB Journal shows that cellular mechanisms used by the blind mole rat to survive the very low oxygen environment of its subterranean niche are the same as those that tumors use to thrive deep in our tissues. The net effect of this discovery is two-fold: first the blind mole rat can serve a "living tumor" in cancer research; and -perhaps more important -that unique gene in the blind mole rat becomes a prime target for new anti-cancer drugs that can "suffocate" tumors. http://www.physorg.com/news155386021.html Biology Wed, 04 Mar 2009 10:47:22 EST news155386021 Protecting drinking water and preventing harmful coastal "dead zones", as well as eutrophication in many lakes, will require reducing both nitrogen and phosphorus pollution. Because streams and rivers are conduits to the sea, management strategies should be implemented along the land-to-ocean continuum. In most cases, strategies that focus only on one nutrient will fail. http://www.physorg.com/news154278113.html Biology Thu, 19 Feb 2009 15:02:22 EST news154278113 Electronic implants that dispense medicines automatically or via a wireless medical network are on the horizon. Australian and US researchers warn of the security risks in a forthcoming issue of the International Journal of Biomedical Engineering and Technology. http://www.physorg.com/news153137835.html Biology Fri, 06 Feb 2009 10:19:05 EST news153137835 (PhysOrg.com) -- Using cancer cells that were originally isolated from an anaplastic large cell lymphoma patient, two researchers, including a faculty member of The University of Texas at Austin's College of Pharmacy, have identified a novel regulatory mechanism in inflammatory signaling of immune cells that may prove beneficial in treating cancer. http://www.physorg.com/news150652358.html Medicine & Health Thu, 08 Jan 2009 15:52:38 EST news150652358 The lowest ever levels of oxygen in humans have been reported in climbers on an expedition led by UCL (University College London) doctors. The world-first measurements of blood oxygen levels in climbers near the top of Mount Everest, published in this week's New England Journal of Medicine (NEJM), could eventually help critical care doctors to re-evaluate treatment strategies in some long-term patients with similarly low levels of blood oxygen. http://www.physorg.com/news150571554.html Medicine & Health Wed, 07 Jan 2009 17:25:54 EST news150571554 A new study by researchers at UC Davis Medical Center suggests that the sudden unexplained deaths of some epilepsy patients may be a result of their brains not telling their bodies to breathe during seizures. http://www.physorg.com/news146159620.html Medicine & Health Mon, 17 Nov 2008 15:53:40 EST news146159620 Killer dyes that can wipe out bacteria could help solve the superbug problems faced by surgical patients, scientists heard today at the Society for General Microbiology's Autumn meeting being held this week at Trinity College, Dublin. http://www.physorg.com/news140242940.html Medicine & Health Wed, 10 Sep 2008 05:22:20 EST news140242940