The use of cannabis during adolescence is not associated with structural brain differences in adulthood, according to longitudinal data published in the journal Drug and Alcohol Dependence. Researchers concluded, “[T]he patterns of cannabis use typically seen in community-dwelling adolescents does not appear to have lasting effects on brain structure.”
Federal officials have approved plans for the University of Mississippi to grow 2,000 kilograms (4,409 pounds) of cannabis to provide to investigators for clinical trial research.
The enactment of laws regulating the use of cannabis by adults is associated with short-term declines in self-reported marijuana use by young people, according to findings published today in the journal JAMA Pediatrics.
Drivers testing positive for the presence of THC in blood do not possess a significantly increased risk of being responsible for a non-fatal motor vehicle accident, according to data published in the journal Addiction.
The administration of oral CBD reduces cue-induced cravings and anxiety in subjects with a history of heroin use, according to clinical data published in The American Journal of Psychiatry. Commenting on the study’s findings, NORML Deputy Director Paul Armentano said, “These conclusions add to the growing body of evidence that cannabis and its constituents represent an exit away from the use or abuse of other controlled substances rather than a supposed ‘gateway.'”
Marijuana grown by the University of Mississippi for clinical research purposes is genetically divergent from strains of cannabis commercially available in retail markets, according to an analysis prepared by researchers at the University of Northern Colorado.
A widely reported study appearing today in the British journal The Lancet alleges that an estimated 30 to 50 percent of psychosis cases in Europe are due to cannabis exposure, and that exposure to elevated levels of THC increases this risk.
Cannabis exposure is not associated with significant changes in brain morphology in either older or younger subjects, according to a pair of newly published studies.