http://medicalxpress.com/ en-us Medical Xpress internet news portal provides the latest news on Health and Medicine. (Medical Xpress)—Viruses often spread through the brain in patchwork patterns, infecting some cells but missing others. New research at Washington University School of Medicine in St. Louis helps explain why. The scientists showed that natural immune defenses that resist viral infection are turned on in some brain cells but switched off in others. http://medicalxpress.com/news/2013-03-brain-cells-virus-fighters.html Medical research Thu, 07 Mar 2013 07:07:12 EST news281862424 Kaposi's sarcoma-associated herpesvirus (KSHV) and Epstein-Barr virus (EBV) hide within the worldwide human population. While dormant in the vast majority of those infected, these active herpesviruses can develop into several forms of cancer. In an effort to understand and eventually develop treatments for these viruses, researchers at the University of North Carolina have identified a family of human genes known as Tousled-like kinases (TLKs) that play a key role in the suppression and activation of these viruses. http://medicalxpress.com/news/2013-02-gene-suppresses-herpesviruses.html Medical research Wed, 13 Feb 2013 12:00:03 EST news279977803 In a Comment linked to The Lancet Series on Adolescent Health, Professor Robert W Blum (Chair of the Department of Population, Family, and Reproductive Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD) and colleagues highlight some of the major challenges facing adolescents today. http://medicalxpress.com/news/2012-04-sexually-transmitted-infections-adolescents-countries.html Health Tue, 24 Apr 2012 18:30:03 EST news254507400 Kaposi's sarcoma herpesvirus (KSHV) is a human tumor virus and an etiological agent for Kaposi's sarcoma and primary effusion lymphoma (PEL). PELs are aggressive lymphomas with reported median survival time shorter than six months after diagnosis. http://medicalxpress.com/news/2012-04-viral-replication-impedes-efficacy-therapy.html Cancer Tue, 03 Apr 2012 09:42:47 EST news252664960 A Colorado State University study will look at how equine herpesvirus type 1 may compromise the immune system immediately upon entering the “gate” of a horse’s respiratory system – the airway and throat – allowing it to spread through the body and potentially cause neurological damage, abortion and possibly death. http://medicalxpress.com/news/2012-01-equine-herpesvirus-unravel-virus-immune.html Medical research Thu, 19 Jan 2012 06:02:20 EST news246175329 Kaposi's sarcoma herpesvirus (KSHV) is an etiological agent for Kaposi's sarcoma and two other rare lymphoproliferative malignancies, and it is the most common cancer in HIV-infected untreated individuals. Researchers at the University of Helsinki, Finland, have discovered a novel viral oncogenesis mechanism in which KSHV oncogenes co-opt cellular signaling pathways and modify the cellular microenvironment more permissive for viral replication. The study will be published Dec. 15, 2011, in Cell Host & Microbe. http://medicalxpress.com/news/2011-12-ks-herpesvirus-reprogramming-lymphatic-endothelial-cells.html Cancer Wed, 14 Dec 2011 13:02:48 EST news243090151