Quantcast

Latest Catecholamines Stories

2011-04-08 15:46:05

A study of the salamander brain has led researchers at Karolinska Institutet to discover a hitherto unknown function of the neurotransmitter dopamine. In an article published in the prestigious scientific journal Cell Stem Cell they show how in acting as a kind of switch for stem cells, dopamine controls the formation of new neurons in the adult brain. Their findings may one day contribute to new treatments for neurodegenerative diseases, such as Parkinson's. The study was conducted using...

2011-03-24 14:54:42

Mayo Clinic researchers found that dopamine agonists used in treating Parkinson's disease result in impulse control disorders in as many as 22 percent of patients. Mayo Clinic first reported on this topic in 2005. The follow-up study was published online in the February 2011 issue of Parkinsonism and Related Disorders. Dopamine agonists, a class of drugs that include pramipexole (Mirapex) and ropinirole (Requip), are commonly used to treat Parkinson's disease. The drugs stimulate the brain's...

2011-03-09 13:42:32

Medication turns on critical gene, protects brain cells In a major breakthrough in the battle against Parkinson's disease, researchers at the University of Colorado School of Medicine have discovered a drug that stops the progression of the degenerative illness in mice and is now being tested in humans. "Drugs currently used to treat Parkinson's disease just treat symptoms; they do not stop the disease from getting worse," said senior author Curt Freed, MD, who heads the division of Clinical...

2011-02-22 14:22:28

The so-called reward center of the brain may need a new name, say scientists who have shown it responds to good and bad experiences. The finding, published in PLoS One, may help explain the "thrill" of thrill-seeking behavior or maybe just the thrill of surviving it, according to scientists at Georgia Health Sciences University and East China Normal University. Eating chocolate or falling off a building "“ or just the thought of either "“ can evoke production of dopamine, a...

2011-02-11 21:35:00

Researchers at the University of Illinois at Chicago have shown for the first time that damage to a particular area of the brain and a consequent reduction in noradrenaline are associated with multiple sclerosis. The study is available online in the journal Brain. The pathological processes in MS are not well understood, but an important contributor to its progression is the infiltration of white blood cells involved in immune defense through the blood-brain barrier. Douglas Feinstein,...

76c0c5dac3d71e76a09fc54d9f0fc864
2011-02-11 08:24:31

Investigators Build a Case Linking Chemical DOPAL to Illness In new research from Saint Louis University, investigators have found evidence that a toxin produced by the brain is responsible for the series of cellular events that lead to Parkinson's disease. The study, published in PLoS One, found that the brain toxin DOPAL plays a key role in killing the dopamine neurons which trigger the illness. In earlier research, Saint Louis University investigators found that DOPAL seemed to be...

3d2ddd6080f320eeac602b98ebcfa41c
2011-01-10 06:15:00

A Montreal study reports that dopamine is released in the brain by those who become euphoric over listening to music, along with food, money and psychoactive drugs. McGill University researchers in Montreal, Canada recruited eight volunteers aged 19-24 who responded to advertisements requesting people who experienced "chills" -- a marker of extreme pleasure, when listening to music. Listening to their favorite piece of spine-tingling music, the eight volunteers showed a rush of physical...

2010-12-08 22:10:07

New findings on how rats make choices may provide insights into addiction and impulse-driven behavior Researchers have shed new light on dopamine's role in the brain's reward system, which could provide insight into impulse control problems associated with addiction and a number of psychiatric disorders. A joint study by the University of Michigan and University of Washington found that, contrary to the prevailing conception, differences in individuals' styles of response to environmental...

2010-11-29 16:27:50

Neuroscientists at the Centre for Addiction and Mental Health (CAMH) have developed a protein peptide that may be a novel type of highly targeted treatment for depression with a low side-effect profile. Depression affects one in ten Canadians at some time in their lives and is a leading cause of disability worldwide. The study published in this month's Nature Medicine found that coupling between two dopamine receptors was significantly elevated in the brains of people who had been diagnosed...

2010-10-21 13:06:25

Researchers at the University of Copenhagen have succeeded in creating a model of the way the brain releases dopamine, an important chemical involved in transmitting signals between nerve cells. The model, the product of an interdisciplinary collaboration, will be an important tool in helping scientists understand how we learn and how the brain perceives reward and punishment. It is hoped that the model can be used to understand drug addiction and in the treatment of schizophrenia. In the...


Word of the Day
jument
  • A beast of burden; also, a beast in general.
'Jument' ultimately comes from the Latin 'jugum,' yoke.
Related