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 study led by Ohio State University neuroscience researchers describes one of the missing triggers that controls calcium inside cells, a process important for muscle contraction, nerve-cell transmission, insulin release and other essential functions. http://www.physorg.com/news159625171.html Medicine & Health Wed, 22 Apr 2009 13:20:13 EST news159625171 Researchers at the University of Pennsylvania School of Medicine have shown that mutations in two proteins associated with familial Alzheimer's disease disrupt the flow of calcium ions within neurons. The two proteins, called PS1 and PS2 (presenilin 1 and 2), interact with a calcium release channel in an intracellular cell compartment. http://www.physorg.com/news135604337.html Medicine & Health Fri, 18 Jul 2008 12:52:17 EST news135604337 A new study uncovers a mechanism that directly links mutations that cause early onset Alzheimer's disease (AD) with aberrant calcium signaling. The research, published by Cell Press in the June 26th issue of the journal Neuron, provides exciting molecular insights into the pathology of AD and may lead to new treatment strategies. http://www.physorg.com/news133619172.html Medicine & Health Wed, 25 Jun 2008 13:26:12 EST news133619172