http://medicalxpress.com/ en-us Medical Xpress internet news portal provides the latest news on Health and Medicine. Scientists at Dana-Farber Cancer Institute have uncovered a new role for a key cancer protein, a finding that could pave the way for more-effective radiation treatment of a variety of tumors. http://medicalxpress.com/news/2011-06-cancer-protein-discovery-aid-therapy.html Cancer Thu, 09 Jun 2011 13:12:43 EST news226843911 No one knows the cause of most cases of Alzheimer's, Parkinson's and other neurodegenerative disorders. But researchers have found that certain factors are consistently associated with these debilitating conditions. One is DNA damage by reactive oxygen species, highly destructive molecules usually formed as a byproduct of cellular respiration. Another is the presence of excessive levels of copper and iron in regions of the brain associated with the particular disorder. http://medicalxpress.com/news/2011-05-high-iron-copper-block-brain-cell.html Diseases, Conditions, Syndromes Fri, 20 May 2011 12:59:29 EST news225115143 A new treatment regimen for patients with metastatic colon cancer appears to offer clinical benefit even when used after multiple other treatments have failed, say research physicians at Georgetown Lombardi Comprehensive Cancer Center, a part of Georgetown University Medical Center. http://medicalxpress.com/news/2011-05-treatment-regimen-clinical-benefit-advanced.html Cancer Wed, 18 May 2011 18:20:10 EST news224961596