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. Portal hypertension is responsible for severe and often lethal complications of cirrhosis. Another important syndrome is hepatic encephalopathy as a consequence of acute and chronic liver failure, which is characterized by a wide spectrum of neuropsychiatric abnormalities. A study group from Argentina analyzed the participation in these syndromes of glutamine synthetase and glutamate uptake in the hippocampus and frontal cortex, by using the prehepatic PH rat model. http://www.physorg.com/news165489160.html Medicine & Health Mon, 29 Jun 2009 11:50:01 EST news165489160 A report in the September Cell Metabolism, a publication of Cell Press, offers new evidence to explain why those who undergo gastric bypass surgery often show greater control of their diabetes symptoms within days. It also helps to explain why lap-band surgery doesn't offer the same instant gratification. By studying mice that have undergone both procedures, the researchers show that changes in the intestine are the key. http://www.physorg.com/news139577001.html Medicine & Health Tue, 02 Sep 2008 12:23:21 EST news139577001