ABSTRACT: Drug abuse (DA) and addiction is a complex illness, broadly viewed as a neurobiological impairment with genetic and environmental factors that influence its development and manifestation. Abused substances can disrupt the activity of neurons by interacting with many proteins, particularly G-protein coupled receptors (GPCRs). A few medicines that target the central ... Continue Reading
Cannabis dependence
STUDY: Effects of Cannabis on the Adolescent Brain
ABSTRACT: This article reviews neuroimaging, neurocognitive, and preclinical findings on the effects of cannabis on the adolescent brain. Marijuana is the second most widely used intoxicant in adolescence, and teens who engage in heavy marijuana use often show disadvantages in neurocognitive performance, macrostructural and microstructural brain development, and alterations ... Continue Reading
STUDY: Enhancement drugs: are there limits to what we should enhance and why?
ABSTRACT: Substances, such as alcohol, opiates and cannabis, have been used by humans for millennia. Today, a much wider range of substances are used for a range of purposes, including the enhancement of performance during university studies, sexual experiences, sports, exercise, at celebrations, socializing and the experience of art and music. Substance use is also ... Continue Reading
STUDY: Marijuana-based Drugs: Innovative Therapeutics or Designer Drugs of Abuse?
ABSTRACT: Marijuana has been used recreationally and medicinally for centuries. The principle psychoactive component, Δ9-tetrahydrocannabinol (Δ9-THC), activates CB1 cannabinoid receptors (CB1Rs). CB1R agonists and antagonists could potentially treat a wide variety of diseases; unfortunately, therapeutic doses produce unacceptable psychiatric effects. “K2” or “Spice” ... Continue Reading
STUDY: Medical Marijuana in the Workplace – Challenges and Management Options for Occupational Physicians
ABSTRACT: Although possession and use of marijuana is prohibited by federal law, legalization in four states (Alaska, Colorado, Oregon, and Washington) and allowance for palliation and therapy in 19 others may reposition the drug away from the fringes of society. This evolving legal environment, and growing scientific evidence of its effectiveness for select health ... Continue Reading