Dopamine Neurons Current Events | Dopamine Neurons News
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Phasic firing of dopamine neurons is key to brain's prediction of rewards
Researchers are one step closer to understanding the neurobiology that allows people to successfully learn motivated behaviors by associating environmental cues with rewarding outcomes, according to a study published yesterday in the Proceedings of the National Academy of Sciences' online Early Edition. view more (2009-04-06)
Study suggests loss of 2 types of neurons -- not just 1 -- triggers Parkinson's symptoms
New evidence indicates that the loss of two types of brain cells--not just one as previously thought--may trigger the onset of symptoms associated with Parkinson's disease. view more (2007-08-14)
Identification of dopamine 'mother cells' could lead to future Parkinson's treatments
'Mother cells' which produce the neurons affected by Parkinson's disease have been identified by scientists, according to new research published in the journal Glia. view more (2008-04-08)
Caltech scientists engineer supersensitive receptor, gain better understanding of dopamine system
Genetically modifying a receptor found on the neurons that produce the neurotransmitter dopamine has given California Institute of Technology (Caltech) researchers a unique glimpse into the workings of the brain's dopamine system--as well as a new target for treating diseases that result from either too much or too little of this critical... view more... (2008-10-15)
Study of the drug, Isradipine, to determine if it slows or prevents Parkinson's disease
Gloria E. Meredith, Ph.D., collaborated with D. James Surmeier, Ph.D. and other scientists at Northwestern University to study the drug, Isradipine, and its possible effects on Parkinson's disease. view more (2007-06-14)
Discovery of post-stimulus activated release implies new mechanisms for dopamine release
The neurotransmitter dopamine continues to be released for nearly an hour after neurons are stimulated, suggesting the existence of secondary mechanisms that allow for sustained availability of dopamine in different regions of the brain including areas critical for memory consolidation, drug induced plasticity and maintaining active networks... view more... (2006-10-16)
Sleep attacks from Parkinson`s drugs do exist
Car crashes in patients with Parkinson’s disease have been associated with sudden sleep attacks caused by dopamine drugs, but the concept of sleep attacks, and their connection with dopamine drugs, has been disputed. view more (2002-06-19)
New Target Found to Fight, Treat Parkinson's
Neuroscientists from the University at Buffalo have described for the first time how rotenone, an environmental toxin linked specifically to Parkinson's disease, selectively destroys the neurons that produce dopamine, the neurotransmitter critical to body movement and muscle control. view more (2005-08-25)
Leptin has powerful effect on reward center in the brain
Leptin, a hormone critical for normal food intake and metabolism, exerts a strong effect on appetite by acting in the mid-brain region as well as in the hypothalamus. view more (2006-09-29)
Exercise may lead to improvement in patients with Parkinson's
A new study from researchers at the Keck School of Medicine of the University of Southern California (USC) shows that treadmill exercises may benefit patients with Parkinson's Disease and those with similar movement disorders. view more (2007-05-16)
Dopamine study sheds new light on drug addiction
A paper published in today's issue of Science has challenged beliefs about the role of dopamine in the brain, which could lead to new treatments for Parkinson's disease, schizophrenia and drug addiction. The research suggests that dopamine has a far wider, less specialised role than previously hypothesised. view more (2005-03-02)
Risk takers, drug abusers driven by decreased ability to process dopamine
For risk-takers and impulsive people, New Year's resolutions often include being more careful, spending more frugally and cutting back on dangerous behavior, such as drug use. But new research from Vanderbilt finds that these individuals--labeled as novelty seekers by psychologists--face an uphill battle in keeping their New Year's resolutions due... view more... (2008-12-30)
A Novel Mechanism of Manganese-Induced Neurological Dysfunction Discovered
For decades, scientists have known that chronic exposure to high concentrations of the metal manganese can cause movement abnormalities resembling symptoms of Parkinson's disease, but apparently without the same neuron damage characteristic of Parkinson's patients. view more (2006-08-29)
U of M researchers identify process that may help treat Parkinson's, spinal cord injuries
A new discovery by University of Minnesota researchers may lead to a better understanding of how the spinal cord controls how people walk. These insights could help lead to treatments for central nervous system maladies such as Parkinson's disease and spinal cord injuries. view more (2008-04-17)
1 sleepless night increases dopamine in the human brain
Just one night without sleep can increase the amount of the chemical dopamine in the human brain, according to new imaging research in the August 20 issue of The Journal of Neuroscience. view more (2008-08-20)
Agent Protects Parkinson's Neurons from Rotenone Toxicity
Researchers at the University at Buffalo affiliated with the New York State Center of Excellence in Bioinformatics and Life Sciences have identified a novel agent that can protect neurons involved in Parkinson's disease from being destroyed by the pesticide rotenone. view more (2006-04-19)
Protein found that regulates gene critical to dopamine-releasing brain cells
Researchers have identified a protein they say appears to be a primary player in maintaining normal functioning of an important class of neurons - those brain cells that produce, excrete and then reabsorb dopamine neurotransmitters. view more (2008-09-10)
Drug slows and may halt Parkinson's disease
Northwestern University researchers have discovered a drug that slows - and may even halt - the progression of Parkinson's disease. view more (2007-06-11)
Research links 'ecstasy' to survival of key movement-related cells in brain
New research from the University of Cincinnati (UC) suggests that the widely abused club drug "ecstasy," or MDMA, can increase the survival of dopamine cells in the brain during fetal development. view more (2006-10-19)
Neural stem cells reduce Parkinson's symptoms in monkeys
Primates with severe Parkinson's disease were able to walk, move, and eat better, and had diminished tremors after being injected with human neural stem cells. view more (2007-06-13)
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