http://medicalxpress.com/ en-us Medical Xpress internet news portal provides the latest news on Health and Medicine. A new Yale study looks at the scope and consequences of a burgeoning health problem in the cities of the U.S. Northeast: concurrent infection with both HIV and Hepatitis C (HCV). The study appears online in the May 14 issue of the Public Library of Science (PLoS One). http://medicalxpress.com/news/2013-05-twin-epidemics-hiv-hepatitis-urban.html HIV & AIDS Fri, 17 May 2013 08:40:03 EST news287997234 Researchers from Queen Mary, University of London have discovered that two proteins which are believed to play a key role in controlling the body's immune response are found in lower levels in T lymphocytes from patients with multiple sclerosis (MS). http://medicalxpress.com/news/2012-12-body-immune-response.html Immunology Wed, 12 Dec 2012 12:50:49 EST news274539026 Researchers have identified the primary player of the biochemical bugle call that musters the body's defenders against viral infection. http://medicalxpress.com/news/2012-06-duration-biochemical-bugle-critical-viruses.html Medical research Wed, 13 Jun 2012 12:00:05 EST news258804222 Rather than stimulating immune cells to more effectively battle cancerous tumors, treatment with the protein interleukin-12 (IL-12) has the opposite effect, driving these intracellular fighters to exhaustion, a Mayo Clinic study has found. The findings appear in the Journal of Clinical Investigation.The study helps explain the negative results of clinical trials testing the treatment's ability to ramp up the body's natural immune response to destroy cancer cells. The study also demonstrates that the same "T cell exhaustion" that plagues specialized immune cells during chronic viral infections also affects cells fighting long bouts of cancer. http://medicalxpress.com/news/2012-05-exhaustion-immune-cells-effective-cancer.html Immunology Wed, 09 May 2012 11:27:38 EST news255781623