New research suggests that differences in tobacco consumption reflect, in part, differences in the functional efficacy of a specific type of receptor in a pathway of the brain. In animal studies, nicotinic acetylcholine receptors with the α5 subunit played a key role in producing aversive responses to nicotine, thereby dissuading further consumption of the drug.
November 2011 In a new series of studies tracing the molecular events that occur in the brain as memories are formed and preserved, researchers find that certain epigenetic changes may promote vulnerability to relapse.
Describes research findings that show that chronic cocaine abuse may change the production of many proteins in the neurons of the brain’s reward system, aiding in our understanding how the drug causes addiction.
December 2010 Reports on an evaluation of the Chief Resident Immersion Training (CRIT) program to assess its effectiveness in improving knowledge, confidence, and preparedness to diagnose, manage, and teach about substance abuse.