http://medicalxpress.com/ en-us Medical Xpress internet news portal provides the latest news on Health and Medicine. In a development that could lead to faster and more effective toxicity tests for airborne chemicals, scientists from Rice University and the Rice spinoff company Nano3D Biosciences have used magnetic levitation to grow some of the most realistic lung tissue ever produced in a laboratory. http://medicalxpress.com/news/2013-01-magnetically-levitated-tissues-toxicity.html Medical research Thu, 24 Jan 2013 16:38:46 EST news278267911 Weak concentrations of bisphenol A are sufficient to produce a negative reaction on the human testicle. This has just been shown experimentally for the first time by René Habert and his colleagues (UMR Cellules souches et Radiations [UMR Stem Cells and Radiation], Inserm U 967 – CEA – Paris Diderot University) in an article that appeared in the journal entitled  Plos One. http://medicalxpress.com/news/2013-01-effects-bisphenol-experimentally.html Health Tue, 22 Jan 2013 10:15:05 EST news278072085 Scientists at the Texas Biomedical Research Institute have for the first time demonstrated that baboon embryonic stem cells can be programmed to completely restore a severely damaged artery. These early results show promise for eventually developing stem cell therapies to restore human tissues or organs damaged by age or disease. http://medicalxpress.com/news/2013-01-stem-cells-artery-lab.html Medical research Thu, 10 Jan 2013 15:50:49 EST news277055439 (Medical Xpress)—The adverse side effects of certain hepatitis C medications can now be replicated and observed in Petri dishes and test tubes, thanks to a research team led by Craig Cameron, the Paul Berg Professor of Biochemistry and Molecular Biology at Penn State University. "The new method not only will help us to understand the recent failures of hepatitis C antiviral drugs in some patients in clinical trials," said Cameron. "It also could help to identify medications that eliminate all adverse effects." The team's findings, published in the current issue of the journal PLOS Pathogens may help pave the way toward the development of safer and more-effective treatments for hepatitis C, as well as other pathogens such as SARS and West Nile virus. http://medicalxpress.com/news/2012-11-hepatitis-treatment-side-effects-lab.html Diseases, Conditions, Syndromes Fri, 16 Nov 2012 15:04:12 EST news272300541 (Medical Xpress)—Hospital superbugs can float on air currents and contaminate surfaces far from infected patients' beds, according to University of Leeds researchers. http://medicalxpress.com/news/2012-10-superbugs-air-hospital-wards.html Diseases, Conditions, Syndromes Thu, 11 Oct 2012 07:04:48 EST news269157874 (Medical Xpress)—A fluorescent protein from a deep-sea jellyfish has helped scientists isolate heart cells in the laboratory, creating an invaluable aid to work on heart disease treatments and extraordinary opportunities for stem cell researchers around the world. http://medicalxpress.com/news/2012-09-fluorescent-protein-scientists-heart-stem.html Medical research Mon, 24 Sep 2012 06:37:04 EST news267687415 Researchers at Case Western Reserve University School of Medicine have discovered a mutant form of the gene, Chk1, that when expressed in cancer cells, permanently stopped their proliferation and caused cell death without the addition of any chemotherapeutic drugs. This study illustrates an unprecedented finding, that artificially activating Chk1 alone is sufficient to kill cancer cells. http://medicalxpress.com/news/2012-07-gene-permanently-cancer-cell-proliferation.html Cancer Wed, 01 Aug 2012 00:20:01 EST news262978935