Describes the work of researchers who have found a statistical link between one region on chromosome 17 and an increased risk of opioid dependence.
Describes research findings showing differences in protein concentrations in the brain pleasure centers of people who died from cocaine overdose as compared with those who did not abuse the drug.
October 2010 Describes study findings revealing that cocaine abusers who maintain high levels of a certain receptor in their brain during early abstinence relapse sooner than abusers whose levels drop.
October 2010 Reports evidence that a cocaine-induced change in the structure of brain cells represents an adaptive response that may limit the drug’s impact.
Reports on evidence that toluene abuse can harm the nervous system and body, although scientists know relatively little about its specific actions.
Highlights an animal study involving the self-administration of nicotine among adolescent and adult rats to gain understanding of their potential vulnerability to the substance.