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. A major obstacle to HIV research is the virus's exquisite specialisation for its human host - meaning that scientists' traditional tools, like the humble lab mouse, can deliver only limited information. Now, a team of researchers writing in BioMed Central's open access Journal of Biology have made an ingenious assault on this problem by creating a mouse that has key features of HIV infection without being infected with HIV. http://www.physorg.com/news178801590.html Medicine & Health Mon, 30 Nov 2009 11:20:01 EST news178801590 (PhysOrg.com) -- About five years ago, Professor Janet Sawicki at the Lankenau Institute in Pennsylvania read an article about nanoparticles developed by MIT's Robert Langer for gene therapy, the insertion of genes into living cells for the treatment of disease. Sawicki was working on treating ovarian cancer by delivering -- through viruses -- the gene for the diphtheria toxin, which kills tumor cells. http://www.physorg.com/news176720244.html Nanotechnology Fri, 06 Nov 2009 08:58:32 EST news176720244 A new vaccine against pneumonia may offer better protection from chronic obstructive pulmonary disease (COPD) patients than the currently accepted vaccine, according to recent research that will be published in the September 15 issue of the American Journal of the Respiratory and Critical Care Journal, a publication of the American Thoracic Society. http://www.physorg.com/news171607245.html Medicine & Health Tue, 08 Sep 2009 05:41:19 EST news171607245 Nanoparticle delivery of diphtheria toxin-encoding DNA selectively expressed in ovarian cancer cells reduced the burden of ovarian tumors in mice, and researchers expect this therapy could be tested in humans within 18 to 24 months, according to a report in Cancer Research, a journal of the American Association for Cancer Research. http://www.physorg.com/news168149704.html Medicine & Health Thu, 30 Jul 2009 05:21:34 EST news168149704 A research team, led by investigators at the Department of Surgery at Jefferson Medical College of Thomas Jefferson University and the Kimmel Cancer Center at Jefferson, has achieved a substantial "kill" of pancreatic cancer cells by using nanoparticles to successfully deliver a deadly diphtheria toxin gene. The findings - set to be published in the October issue of Cancer Biology & Therapy - reflect the first time this unique strategy has been tested in pancreatic cancer cells, and the success seen offers promise for future pre-clinical animal studies, and possibly, a new clinical approach. http://www.physorg.com/news141396245.html Medicine & Health Tue, 23 Sep 2008 13:44:05 EST news141396245