Anxiety and depression are more common in newly diagnosed Parkinson's patients than in the general population, a new study reports.
A new study clarifies the mechanism behind how ketamine works as an antidepressant. Researchers say there is evidence to suggest ketamine binds to NMDA receptors, instead of opioid receptors. Reducing the belief that ketamine is an opioid may make patients with depression more open to using the treatment.
Researchers report ketamine's antidepressive effects require activation of opioid receptors in the brain. The study highlights the interaction between depression, pain and opioid addiction.
A new compound known as BU10119 blocks kappa opioid receptors, creating an antidepressant effect in mice, researchers say.
A new vaccine blocks the effects of heroin by preventing the drug from crossing the blood-brain barrier. Researchers believe the vaccine could be helpful in curbing the opioid epidemic.
A new study provides evidence that the central amygdala, an area of the brain associated with emotion, plays a major role in sustaining cocaine addiction.