Tag Serotonin "Vacuums" to Track Depression, Vanderbilt University Study  
6/28/2012 3:11:06 PM

Scientists are using tiny fluorescent beads to track a protein that regulates serotonin, a neurotransmitter that plays a key role in mood, appetite, and sleep. The capability, which allows the team to track the movements of single molecules for the first time, took nearly a decade to achieve. Researchers from Vanderbilt University reported details of the work in the Journal of Neuroscience.