Researchers at the University of California, San Diego, the Medical University of South Carolina and American Life Science Pharmaceuticals of San Diego have demonstrated that oral administration of a cysteine protease inhibitor, E64d, not only reduces the build-up of beta-amyloid in the brains of animal models for Alzheimer's disease, but also results in a substantial improvement in memory deficit.

Read more http://www.eurekalert.org/pub_releases/2011-05/uoc--pnd053111.php