News tagged with dopamine
Fighting Parkinson's with carbon nanoparticles
One of the problems affecting the human nervous system is dopamine deficiency. But testing of dopamine concentration is costly and requires sophisticated equipment not available in a doctor's office. Enter ...
Nanotechnology / Bio & Medicine
Nov 29, 2011 |
not rated yet |
0
Researchers find drug that stops progression of Parkinson's disease in mice
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 ...
Mar 08, 2011 |
5 / 5 (1) |
0
Binge eaters' dopamine levels spike at sight, smell of food
(PhysOrg.com) -- A brain imaging study at the U.S. Department of Energy's (DOE) Brookhaven National Laboratory reveals a subtle difference between ordinary obese subjects and those who compulsively overeat, ...
Medicine & Health / Medical research
Feb 28, 2011 |
5 / 5 (2) |
0
|
Brain's 'reward' center also responds to bad experiences
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 thr ...
Medicine & Health / Neuroscience
Feb 22, 2011 |
5 / 5 (1) |
0
|
New research implicates natural toxin as triggering Parkinson's disease
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 ...
Medicine & Health / Diseases, Conditions, Syndromes
Feb 10, 2011 |
5 / 5 (1) |
0
Non-dopaminergic drug preladenant reduces motor fluctuations in patients with Parkinson's disease
Preladenant, a non-dopaminergic medication, reduces off time in patients with Parkinson's disease receiving standard dopamine therapy, an international study led by the University of South Florida found.
Medicine & Health / Neuroscience
Feb 10, 2011 |
not rated yet |
0
Research reveals the biochemical connection between music and emotion
You are in a concert hall, listening to music you love, Ludwig von Beethoven's Ninth Symphony. You are happily awaiting the glorious climax in the fourth movement -- you know it's coming -- when the full orchestra ...
Medicine & Health / Neuroscience
Jan 19, 2011 |
4.6 / 5 (10) |
2
|
Unfolding pathogenesis in Parkinson's
The study, published in the Journal of Clinical Investigation, reveals that damaged alpha-synuclein proteins (which are implicated in Parkinson's disease) can spread in a 'prion-like' manner, an infection model previously descri ...
Medicine & Health / Medical research
Jan 19, 2011 |
not rated yet |
0
Friendship may have a genetic component
(PhysOrg.com) -- New research suggests groups of friends may have common genetic patterns. Social scientist Professor James Fowler of the University of California, San Diego, came to this conclusion after ...
Jan 18, 2011 |
4.6 / 5 (14) |
6
|
Roll-your-own tobacco could be more addictive
Research carried out at Victoria University suggests smokers of roll-your-own tobacco may be more intensely addicted to the habit than those who puff on manufactured cigarettes.
Jan 12, 2011 |
5 / 5 (2) |
0
Parkinson's drug could treat restless leg syndrome
A drug prescribed for Parkinson's disease may also treat restless leg syndrome without the adverse side effects of current therapies, Medical College of Georgia researchers say.
Medicine & Health / Diseases, Conditions, Syndromes
Dec 06, 2010 |
3 / 5 (1) |
0
Neurological protein may hold the key to new treatments for depression
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 ...
Medicine & Health / Neuroscience
Nov 29, 2010 |
4.5 / 5 (2) |
0
|
Scientists report molecular structure of dopamine receptor
A team led by scientists at The Scripps Research Institute has solved the structure of one of the receptors that responds to the neurotransmitter dopamine. Although dopamine transmission is essential to normal brain functioning, ...
Medicine & Health / Medical research
Nov 18, 2010 |
5 / 5 (4) |
0
|
Gene linked to ADHD allows memory task to be interrupted by brain regions tied to daydreaming
Neuroscientists at Georgetown University Medical Center (GUMC) say brain scans show that a gene nominally linked to attention deficit hyperactivity disorder (ADHD) leads to increased interference by brain regions associated ...
Medicine & Health / Neuroscience
Nov 16, 2010 |
4.7 / 5 (3) |
0
|
Dopamine model could play role in treating schizophrenia and drug addiction
In the brain, dopamine is involved in a number of processes that control the way we behave. If an action results in the substance being released, we are more likely to repeat the action. This applies to actions such as eating, ...
Medicine & Health / Neuroscience
Oct 20, 2010 |
5 / 5 (1) |
0
Dopamine
Dopamine is a neurotransmitter occurring in a wide variety of animals, including both vertebrates and invertebrates. In the brain, this phenethylamine functions as a neurotransmitter, activating the five types of dopamine receptors — D1, D2, D3, D4, and D5, and their variants. Dopamine is produced in several areas of the brain, including the substantia nigra and the ventral tegmental area. Dopamine is also a neurohormone released by the hypothalamus. Its main function as a hormone is to inhibit the release of prolactin from the anterior lobe of the pituitary.
Dopamine can be supplied as a medication that acts on the sympathetic nervous system, producing effects such as increased heart rate and blood pressure. However, because dopamine cannot cross the blood-brain barrier, dopamine given as a drug does not directly affect the central nervous system. To increase the amount of dopamine in the brains of patients with diseases such as Parkinson's disease and dopa-responsive dystonia, L-DOPA (levodopa), which is the precursor of dopamine, can be given because it can cross the blood-brain barrier.
For more information about Dopamine, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
