Scientists at St. Andrew's University report in the journal Molecular and Cellular Neuroscience that they have genetically engineered mice in which the symptoms of Alzheimer's disease are sent into reverse, according to a news piece in the Guardian. They engineered the mice to produce what they call a "decoy" protein that binds to amyloid protein, preventing amyloid from binding to ABAD, and thereby preventing the disease from actively destroying nerve cells.