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. Mitochondrial diseases disrupt the power generating machinery within cells and increase a person's susceptibility to bacterial infection, particularly in the lungs or respiratory tract. A new study published in Disease Models & Mechanisms (DMM), shows that infection with the pneumonia causing bacteria Legionella, is facilitated by an increased amount of a signaling protein that is associated with mitochondrial disease. http://www.physorg.com/news167989907.html Medicine & Health Tue, 28 Jul 2009 09:40:04 EST news167989907 For generations, people have consumed cranberry juice, convinced of its power to ward off urinary tract infections, though the exact mechanism of its action has not been well understood. A new study by researchers at Worcester Polytechnic Institute (WPI) reveals that the juice changes the thermodynamic properties of bacteria in the urinary tract, creating an energy barrier that prevents the microorganisms from getting close enough to latch onto cells and initiate an infection. http://www.physorg.com/news135869488.html Chemistry Mon, 21 Jul 2008 14:31:28 EST news135869488