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. An international collaboration of researchers has discovered a new enzyme in a species of bacteria with potential environmental cleanup and energy roles. This is the first multi-protein enzyme of its kind. Although many microbes use a single-protein version to consume certain food, the new study suggests that dozens of bacteria use only the multi-protein one instead. This advance in understanding of the microbe's metabolism will help researchers use the bugs to clean up toxic or radioactive pollutants. http://www.physorg.com/news152817968.html Chemistry Mon, 02 Feb 2009 17:26:42 EST news152817968 A team of researchers at Duke University Medical Center and the Université catholique de Louvain (UCL) has found that lactic acid is an important energy source for tumor cells. In further experiments, they discovered a new way to destroy the most hard-to-kill, dangerous tumor cells by preventing them from delivering lactic acid. http://www.physorg.com/news146421554.html Medicine & Health Thu, 20 Nov 2008 16:39:14 EST news146421554 Alternative energy is all the rage in major media headlines, but for the human brain, this is old news. According to a study by researchers from Denmark and The Netherlands published in the October 2008 print issue of The FASEB Journal, the brain, just like muscles, works harder during strenuous exercise and is fueled by lactate, rather than glucose. http://www.physorg.com/news141997396.html Medicine & Health Tue, 30 Sep 2008 12:43:16 EST news141997396