Resveratrol's muddled Alzheimer's trial results may trace back to a mirror-image molecule problem: one form of the compound could help memory, the other may poison the nervous system. The find builds on the chemistry behind this year's Nobel Prize, the same science that explains why thalidomide caused birth defects.

— via The Conversation — Science, Sajish Mathew, Associate Professor of Pharmaceutical Sciences, University of Maryland Eastern Shore