Intensive training in young mice staves off symptoms of a rare neurological disorder that afflicts young girls. The discovery may spark new ideas for treatments in humans. HHMI scientists are among 84 newly elected members and 21 foreign associates. A new analysis suggests that the regulatory protein MeCP2 works with the modified nucleotide 5hmC to facilitate gene activation in the brain.  Using genetic programming, researchers have identified a specific type of cell in the outer layers of the brain that is crucial for Prozac’s action. HHMI researchers discover that protein related to snake venom toxin modulates receptors that are targeted by nicotine.