http://phys.org/ en-us Phys.org internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine. Scientists at the University of Southampton have created a new method to generate bone cells which could lead to revolutionary bone repair therapies for people with bone fractures or those who need hip replacement surgery due to osteoporosis and osteoarthritis. http://phys.org/news279806863.html Nanotechnology Mon, 11 Feb 2013 12:07:53 EST news279806863 A team of researchers from North Carolina State University and the Palo Alto Research Center (PARC) has found more evidence for the preservation of ancient dinosaur proteins, including reactivity to antibodies that target specific proteins normally found in bone cells of vertebrates. These results further rule out sample contamination, and help solidify the case for preservation of cells – and possibly DNA – in ancient remains. http://phys.org/news270224252.html Other Sciences Tue, 23 Oct 2012 15:50:01 EST news270224252 (Phys.org)—Swiss cell biologists at Empa want to "tune" implants such that they can better carry out their tasks in the human body. The surface of the implant is the key to success. Together with the Fraunhofer Institute IFAM, the Empa team developed a method to manufacture implants with the required surface "from a single cast". http://phys.org/news268557461.html Chemistry Thu, 04 Oct 2012 08:17:49 EST news268557461 (Phys.org)—A novel set of custom-designed "molecular beacons" allows scientists to monitor gene expression in living populations of stem cells as they turn into a specific tissue in real-time. The technology, which Brown University researchers describe in a new study, provides tissue engineers with a potentially powerful tool to discover what it may take to make stem cells transform into desired tissue cells more often and more quickly. That's a key goal in improving regenerative medicine treatments. http://phys.org/news266587158.html Biology Tue, 11 Sep 2012 12:59:39 EST news266587158 An artificial bone scaffold produced by researchers in South Korea could enhance the treatment of bone damage and defects through bone grafts. http://phys.org/news262339361.html Chemistry Tue, 24 Jul 2012 09:02:57 EST news262339361 Breast cancer cells frequently move from their primary site and invade bone, decreasing a patient's chance of survival. This process of metastasis is complex, and factors both within the breast cancer cells and within the new bone environment play a role. In next week's Journal of Biological Chemistry "Paper of the Week," Roger Gomis and colleagues at the Institute for Research in Biomedicine in Spain investigated how breast cancer cells migrate to bone. http://phys.org/news258866486.html Chemistry Thu, 14 Jun 2012 04:22:09 EST news258866486 To become better healers, tissue engineering need a timely and reliable way to obtain enough raw materials: cells that either already are or can become the tissue they need to build. In a new study, Brown University biomedical engineers show that the stiffness, viscosity, and other mechanical properties of adult stem cells derived from fat, such as liposuction waste, can predict whether they will turn into bone, cartilage, or fat. http://phys.org/news256815007.html Biology Mon, 21 May 2012 15:01:24 EST news256815007 Any multicellular animal, from a blue whale to a human being, poses a special difficulty for the theory of evolution. Most of the cells in its body will die without reproducing, and only a privileged few will pass their genes to the next generation. http://phys.org/news243178763.html Biology Thu, 15 Dec 2011 14:00:04 EST news243178763 McMaster researchers have found one more reason to exercise: working out triggers influential stem cells to become bone instead of fat, improving overall health by boosting the body's capacity to make blood. http://phys.org/news234094358.html Biology Thu, 01 Sep 2011 11:13:14 EST news234094358 (PhysOrg.com) -- New research from the University of Adelaide has added to the debate about whether dinosaurs were cold-blooded and sluggish or warm-blooded and active. http://phys.org/news229339396.html Other Sciences Fri, 08 Jul 2011 10:23:26 EST news229339396 During the development of an embryo, a large number of different, specialised cell-types arise from the fertilised egg. The genetic information is identical in all cells of an organism. Different properties of cells arise because the activity of genes is controlled and regulated by so called transcription factors. By switching genes on or off, the body makes muscle cells, bone cells, liver cells and many more. http://phys.org/news223553126.html Biology Mon, 02 May 2011 11:05:44 EST news223553126 Move over, newts and salamanders. The mouse may join you as the only animal that can re-grow their own severed limbs. Researchers are reporting that a simple chemical cocktail can coax mouse muscle fibers to become the kinds of cells found in the first stages of a regenerating limb. Their study, the first demonstration that mammal muscle can be turned into the biological raw material for a new limb, appears in the journal ACS Chemical Biology. http://phys.org/news221307848.html Chemistry Wed, 06 Apr 2011 11:24:27 EST news221307848 In a discovery that may lead to a new treatment for breast cancer that has spread to the bone, a Princeton University research team has unraveled a mystery about how these tumors take root. http://phys.org/news215960059.html Medicine & Health Thu, 03 Feb 2011 12:55:39 EST news215960059 Artificial joint replacements can drastically change a patient's quality of life. Painful, arthritic knees, shoulders and hips can be replaced with state-of-the-art metal or ceramic implants, eliminating pain and giving a person a new lease on life. But, what if, instead of metal and plastic, doctors were able to take a patient's cells and grow an entirely new joint, replacing the old one with a fully functional biological joint? A team of University of Missouri and Columbia University researchers have found a way to create these biological joints in animals, and they believe biological joint replacements for humans aren't far away. http://phys.org/news213451268.html Medicine & Health Wed, 05 Jan 2011 12:01:42 EST news213451268 (PhysOrg.com) -- As debilitating as disease can be, sometimes it acts as a teacher. Researchers at Harvard Medical School and the Harvard School of Dental Medicine have found that by mimicking a rare genetic disorder in a dish, they can rewind the internal clock of a mature cell and drive it back into an adult stem-cell stage. This new "stem cell" can then branch out into a variety of differentiated cell types, both in culture and in animal models. http://phys.org/news209569373.html Medicine & Health Sun, 21 Nov 2010 13:43:11 EST news209569373 (AP) -- Government health officials warned doctors and patients Wednesday about an increased risk of thigh fractures with a widely used group of bone-strengthening drugs. http://phys.org/news206202342.html Medicine & Health Wed, 13 Oct 2010 15:25:57 EST news206202342 Flexible yet rigid like a human bone, and immediately capable of bearing loads: a new kind of implant, made of titanium foam, resembles the inside of a bone in terms of its structural configuration. Not only does this make it less stiff than conventional massive implants. It also promotes in-growth into surrounding bones. http://phys.org/news204368464.html Medicine & Health Wed, 22 Sep 2010 10:01:37 EST news204368464 A researcher at the Hebrew University of Jerusalem, together with Israeli and foreign collaborators, has revealed how physical qualities -- and not only chemical ones - may have an influence in determining how adult stem cells from the bone marrow develop into differentiated ones. This represents an important step in understanding the mechanisms that direct and regulate the specialization of stem cells from their undefined state. http://phys.org/news203076893.html Physics Tue, 07 Sep 2010 11:15:08 EST news203076893 A surface molecule on bacteria that instructs bone cells to die could be the target for new treatments for bone disease, says a scientist speaking at the Society for General Microbiology's autumn meeting today. http://phys.org/news203053177.html Medicine & Health Tue, 07 Sep 2010 04:50:01 EST news203053177 Researchers from University of Twente's MIRA research institute and its spin-off business Progentix Orthobiology BV have developed a biomaterial that promotes the formation of bone tissue. It can be used to repair bone tissue that can no longer regenerate itself. Research that was recently published in the leading scientific journal PNAS shows that the material can repair fractures that fail to heal just as effectively as the methods that have been in use until now, but without the drawbacks. http://phys.org/news202397136.html Chemistry Mon, 30 Aug 2010 14:40:01 EST news202397136 A combination of nutrients called NT-020 promoted adult neural stem cell proliferation in aged rats and boosted their memory performance, reported University of South Florida researchers studying natural therapeutic approaches to promoting the health of neurons in the aging brain. http://phys.org/news198859922.html Medicine & Health Tue, 20 Jul 2010 16:40:04 EST news198859922 A long-standing question in bone biology has been answered: It is the spindly extensions of bone cells that sense mechanical stimulation and signal the release of bone-growth factors, according to research from The University of Texas Health Science Center at San Antonio. http://phys.org/news198857904.html Medicine & Health Tue, 20 Jul 2010 16:20:01 EST news198857904 Rearing juvenile salmon at the relatively high temperature of 16 C causes skeletal deformities in the fish. Researchers writing in the open access journal BMC Physiology investigated both the magnitude and mechanisms of this effect, which occurs when salmon farmers use warmed water to increase fish growth rates. http://phys.org/news197547426.html Biology Mon, 05 Jul 2010 19:00:01 EST news197547426 A new bioreactor system for cultivating bone cells reduces the number of actions that need to be taken in the process, and so lowers the cost of tissue culture. Frank Janssen of the University of Twente (The Netherlands) developed this new bioreactor. With the new system the cells can be closely monitored during their growth, so that they grow as well as possible. http://phys.org/news194547230.html Biology Mon, 31 May 2010 17:54:11 EST news194547230 (PhysOrg.com) -- Titanium and its alloys have a leg up on all other materials used to make the orthopedic implants used by surgeons to repair damaged bones and joints. They are light, super-strong, and virtually inert inside the body. But whether the implants are destined for your knee, your hip, your spine or your jaw, the silvery metal has one big drawback. http://phys.org/news193416889.html Nanotechnology Tue, 18 May 2010 15:55:21 EST news193416889 Working with mice, a team of researchers has pinpointed the location of bone generating stem cells in the spine, at the ends of shins, and in other bones. The team also has identified factors that control the stem cells' growth. The research was conducted at the National Institutes of Health and other institutions. http://phys.org/news191486603.html Medicine & Health Mon, 26 Apr 2010 15:00:08 EST news191486603 (PhysOrg.com) -- The general theory of cancer development holds that malignancies occur because of the presence of certain genetic elements within the affected cells. http://phys.org/news188466202.html Medicine & Health Mon, 22 Mar 2010 09:20:01 EST news188466202 Scientists at Queen Mary, University of London have uncovered fundamental differences between the bone which makes up the skull and the bones in our limbs, which they believe could hold the key to tackling bone weakness and fractures. http://phys.org/news180426060.html Medicine & Health Sat, 19 Dec 2009 06:21:26 EST news180426060 Researchers in Hong Kong are reporting new evidence that green tea — one of the most popular beverages consumed worldwide and now available as a dietary supplement — may help improve bone health. They found that the tea contains a group of chemicals that can stimulate bone formation and help slow its breakdown. Their findings are in ACS' Journal of Agricultural and Food Chemistry. http://phys.org/news172326714.html Chemistry Wed, 16 Sep 2009 14:00:01 EST news172326714 Shirly Sieh, a PhD student at IHBI, is studying the way cancer cells escape from the prostate through the bloodstream to form tumour colonies, most often in the spine and long bones. http://phys.org/news159789739.html Medicine & Health Fri, 24 Apr 2009 11:02:50 EST news159789739