Dopamine News and Research

Latest Dopamine News and Research

Novel stimulation method sparks hope for Parkinson's disease sufferers

A novel stimulation method, the first potential therapy to target the spinal cord instead of the brain, may offer an effective and less invasive approach for Parkinson's disease treatment, according to pre-clinical data published in the journal Science by researchers at Duke University Medical Center.

20 Mar 2009

Naltrexone can reduce relapse rates among alcohol-dependence patients

Naltrexone, an opioid antagonist approved in 1994 by the U.S. Food and Drug Administration for alcohol-dependence (AD) treatment, can reduce relapse rates among AD patients.

20 Mar 2009

Low to moderate drinking releases 'feel-good' endorphins in the brain, not heavy drinking

Scientists know that alcohol affects the brain, but the specifics remain unclear.

20 Mar 2009

Drug being used to improve cognition affects dopamine, suggesting potential for abuse

Preliminary research in healthy men suggests that the narcolepsy drug modafinil, increasingly being used to enhance cognitive abilities, affects the activity of dopamine in the brain in a way that may create the potential for abuse and dependence, according to a study in the March 18 issue of JAMA.

17 Mar 2009

Parkinson's-linked mutation makes neurons vulnerable to calcium-induced death

A new study reveals the mechanism by which a genetic mutation linked with Parkinson's disease (PD) renders dopamine neurons particularly vulnerable to cell injury and death.

12 Mar 2009

Toxoplasmosis linked to schizophrenia, bipolar disorders

Scientists have discovered how the toxoplasmosis parasite may trigger the development of schizophrenia and other bipolar disorders.

11 Mar 2009

Long-term effects of two common drugs for early Parkinson's similar

A study published online in the Archives of Neurology involving two common drugs used to treat early-stage Parkinson's disease shows that, while the drugs each have advantages and disadvantages, the overall impact tends to even out over a long period of treatment.

10 Mar 2009

Breakthrough method produces Parkinson's disease patient-specific stem cells free of harmful reprogramming genes

Whitehead Institute researchers have developed a novel method to remove potential cancer-causing genes during the reprogramming of skin cells from Parkinson's disease patients into an embryonic-stem-cell-like state.

8 Mar 2009

Breakthrough produces Parkinson's patient-specific stem cells free of harmful reprogramming genes

Deploying a method that removes potentially cancer-causing genes, Whitehead Institute researchers have "reprogrammed" human skin cells from Parkinson's disease patients into an embryonic-stem-cell-like state.

5 Mar 2009

Faulty signalling in the brain may cause schizophrenia

In the biggest study of its kind, scientists looking in detail at brain samples donated by people with the condition have identified 49 genes that work differently in the brains of schizophrenia patients compared to controls.

3 Mar 2009

Researchers discover gene variation linked to cocaine addiction and cocaine-induced paranoia

Researchers from Boston University School of Medicine (BUSM) and Yale University School of Medicine and the University of Connecticut School of Medicine, have discovered that variants in the á-endomannosidase (MANEA) gene are associated with cocaine addiction and cocaine-induced paranoia in European American and African American populations.

2 Mar 2009

New insights into addiction

A new comprehensive review by researchers at the Montreal Neurological Institute (MNI), McGill University and the University of Cambridge, England provides vital insights into the neurological basis of addiction by investigating Parkinson's disease patients, who in some instances develop various addictions when undergoing medical treatment.

25 Feb 2009

Mental fatigue impairs physical performance in humans

When participants performed a mentally fatiguing task prior to a difficult exercise test, they reached exhaustion more quickly than when they did the same exercise when mentally rested, a new study finds.

24 Feb 2009

More evidence showing exercise helps people give up smoking

Research from the University of Exeter reveals for the first time, that changes in brain activity, triggered by physical exercise, may help reduce cigarette cravings.

10 Feb 2009

Cognitive training can alter the biochemistry of the brain

Researchers at the Swedish medical university Karolinska Institutet have shown for the first time that the active training of the working memory brings about visible changes in the number of dopamine receptors in the human brain.

8 Feb 2009

Safinamide significantly improved motor function in patients with advanced Parkinson's disease

Merck Serono, a division of Merck KGaA, Darmstadt, Germany, and its partner Newron Pharmaceuticals SpA has announced that the first Phase III trial of investigational agent safinamide as adjunctive therapy to levodopa (study 016) met its primary endpoint by increasing daily "ON" time in mid- to late-stage Parkinson's disease patients with motor fluctuations by 1.3 hours.

5 Feb 2009