NIH-funded researchers create next-generation Alzheimer's disease model

A new genetically engineered lab rat that has the full array of brain changes associated with Alzheimer's disease supports the idea that increases in a molecule called beta-amyloid in the brain causes the disease, according to a study, published in the Journal of Neuroscience .

http://www.eurekalert.org/pub_releases/2013-04/nion-nrc032713.php