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. (Phys.org) —New research reveals that pure gold nanoparticles found in everyday items such as personal care products, as well as drug delivery, MRI contrast agents and solar cells can inhibit adipose (fat) storage and lead to accelerated aging and wrinkling, slowed wound healing and the onset of diabetes. The researchers, led by Tatsiana Mironava, a visiting assistant professor in the Department of Chemical and Molecular Engineering at Stony Brook University, detail their research, "Gold nanoparticles cellular toxicity and recovery: Adipose Derived Stromal cells," in the journal Nanotoxicology. http://phys.org/news285528843.html Nanotechnology Thu, 18 Apr 2013 18:34:15 EST news285528843 Terahertz (THz) radiation, a slice of the electromagnetic spectrum that occupies the middle ground between microwaves and infrared light, is rapidly finding important uses in medical diagnostics, security, and scientific research. As scientists and engineers find evermore practical uses for this form of radiation, questions persist about its potential human health risks. http://phys.org/news282476579.html Physics Thu, 14 Mar 2013 10:43:17 EST news282476579 Researchers in Japan have moved one step closer to clinical trials using adult stem cells in a therapy they hope will prove a cure for common sight problems, an official said Thursday. http://phys.org/news280033243.html Biology Thu, 14 Feb 2013 03:20:01 EST news280033243 Nanotechnology can help solve many problems. But it is a technology that involves risks as well, for people and for the environment. In a PhD study conducted at Alterra Wageningen UR and Wageningen University, doctoral candidate Merel van der Ploeg explored the effects of nanoparticles on soils. Caution, it turns out, is still called for in nanotechnology's use. http://phys.org/news278760409.html Nanotechnology Wed, 30 Jan 2013 09:40:02 EST news278760409 Researchers in Japan have created a hybrid scaffold which promotes regeneration of skin in live animals while maintaining mechanical strength making it a promising material for future skin tissue engineering. This research was recently published in the Science and Technology of Advanced Materials. http://phys.org/news273997807.html Chemistry Thu, 06 Dec 2012 06:30:19 EST news273997807 (Phys.org) -- How better to find out what effect ionizing radiation has on human skin than by using the real thing? Researchers at Pacific Northwest National Laboratory did that by performing a quantitative mass spectrometry study on a reconstituted human skin tissue model to identify areas affected by ionizing radiation exposure. Their results suggest that even very low doses of ionizing radiation activate cell-signaling pathways, resulting in altered protein phosphorylation and possibly altered protein function. http://phys.org/news254474652.html Chemistry Tue, 24 Apr 2012 09:00:01 EST news254474652 Researchers from the UCLA School of Dentistry investigating how stem cells can be used to regenerate dental tissue have discovered a way to produce cells with stem cell-like characteristics from the most common type of human skin cell in the epidermis. http://phys.org/news242032256.html Chemistry Fri, 02 Dec 2011 07:11:10 EST news242032256 University of Rochester optics professor Jannick Rolland has developed an optical technology that provides unprecedented images under the skin's surface. The aim of the technology is to detect and examine skin lesions to determine whether they are benign or cancerous without having to cut the suspected tumor out of the skin and analyze it in the lab. Instead, the tip of a roughly one-foot-long cylindrical probe is placed in contact with the tissue, and within seconds a clear, high-resolution, 3D image of what lies below the surface emerges. http://phys.org/news217346797.html Physics Sat, 19 Feb 2011 14:06:53 EST news217346797 The loss of a gene known as INPP5A could predict the onset, and track the progression, of an aggressive type of skin cancer, according to a study published today by the Arizona Cancer Center, Mayo Clinic and the Translational Genomics Research Institute (TGen). http://phys.org/news204902003.html Medicine & Health Tue, 28 Sep 2010 14:40:01 EST news204902003 A Henry Ford Hospital study has shown a link between Vitamin D levels and basal cell carcinoma, a finding that could lead researchers to better understand the development of the most common form of skin cancer. http://phys.org/news186931549.html Medicine & Health Thu, 04 Mar 2010 13:26:14 EST news186931549 (PhysOrg.com) -- There are over 400 genetically different dog breeds, with massive variations in size, colors, fur type, temperament, and so on, and scientists have wondered exactly what changes in the genes have been brought about by centuries of selective breeding to explain the huge differences. Now a new study has shed some light on the puzzle. http://phys.org/news182595890.html Biology Wed, 13 Jan 2010 10:10:01 EST news182595890 Researchers at Rush University Medical Center and Argonne National Laboratory are collaborating on a study to determine if an imaging technique used by NASA to inspect the space shuttle can be used to predict tissue damage often experienced by breast cancer patients undergoing radiation therapy. The study is examining the utility of three-dimensional thermal tomography in radiation oncology. http://phys.org/news176395084.html Medicine & Health Mon, 02 Nov 2009 15:40:02 EST news176395084 In two separate studies, a major component in green tea, epigallocatechin-3-O-gallate (EGCG), has been found to help prolong the preservation of both stored blood platelets and cryopreserved skin tissues. http://phys.org/news172145000.html Medicine & Health Mon, 14 Sep 2009 11:20:01 EST news172145000 In a paper publishing online July 23 in Cell Stem Cell, a Cell Press journal, Dr. Shaorong Gao and colleagues from the National Institute of Biological Sciences in Beijing, China, report an important advance in the characterization of reprogrammed induced pluripotent stem cells, or iPSCs. http://phys.org/news167569781.html Biology Thu, 23 Jul 2009 12:10:08 EST news167569781 (PhysOrg.com) -- Dendritic cells are the sentinels of the immune system. When they’re alert and on guard, they will marshal the body’s immunosoldiers, T cells, to battle at the sight of harmful pathogens. But some diseases, such as cancer, are able to escape their watchful eye. By knocking out or beguiling dendritic cells, they slip the defenses of the immune system and sack the unsuspecting body. New research shows that one of the most common types of skin cancer has learned such a trick, finding a way to disable apparently healthy dendritic cells, which then allow cancer cell nests to spread around them without calling T cells to the fight. http://phys.org/news162658919.html Medicine & Health Wed, 27 May 2009 16:02:46 EST news162658919 Some patients wish they had a second skin – for instance because their own skin has been burnt in a severe accident. But transplanting skin is a painstaking task, and a transplant that has to cover large areas often requires several operations. Medical scientists have therefore been trying for a long time to grow artificial tissue. This "artificial skin" would allow them to treat these patients better and faster. http://phys.org/news148054025.html Biology Tue, 09 Dec 2008 14:07:05 EST news148054025