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Latest Catecholamines Stories

Dopamine Has Many Messages
2012-07-18 14:59:38

In the insect brain, dopamine-releasing nerve cells are crucial to the formation of both punished and rewarded memories Children quickly learn to avoid negative situations and seek positive ones. But humans are not the only species capable of remembering positive and negative events; even the small brain of a fruit fly has this capacity. Dopamine-containing nerve cells connected with the mushroom body of the fly brain play a role here. Scientists from the Max Planck Institute of...

2012-06-11 21:26:48

Study shows people who have lower levels of the brain chemical are more likely to be aggressive when provoked in competitive situations Out of control competitive aggression could be a result of a lagging neurotransmitter called dopamine, say researchers presenting a study at the Society of Nuclear Medicine's 2012 Annual Meeting. During a computer game against a putative cheating adversary, participants who had a lower capacity to synthesize this neurotransmitter in the brain were more...

2012-05-03 09:08:22

TAU researcher developing therapy to halt symptoms in Parkinson's patients Parkinson's disease, a disorder which affects movement and cognition, affects over a million Americans, including actor Michael J. Fox, who first brought it to the attention of many TV-watching Americans. It's characterized by a gradual loss of neurons that produce dopamine. Mutations in the gene known as DJ-1 lead to accelerated loss of dopaminergic neurons and result in the onset of Parkinson's symptoms at a young...

Are You A Lazy Slacker? You May Have Been Born That Way
2012-05-02 14:00:13

Image Credit: Photos.com New brain research suggests lazy people could be naturally born that way. Published in the Journal of Neuroscience, the study was performed by a team of scientists from Vanderbilt University who found evidence which suggests a person´s willingness to work hard and make money are tied to specific chemicals in 3 areas of the brain. The scientists also say these new studies could improve the treatment and research of Attention-Deficit Disorder, Depression...

2012-04-30 13:08:17

Discovery has implications for neurodegenerative and psychiatric disorders Scientists at the Gladstone Institutes have determined how specific circuitry in the brain controls not only body movement but also motivation and learning, providing new insight into neurodegenerative disorders such as Parkinson's disease–and psychiatric disorders such as addiction and depression. Previously, researchers in the laboratory of Gladstone Investigator Anatol Kreitzer, PhD, discovered how an...

2012-04-03 10:03:53

An agent under consideration for use in PET imaging combats neuronal death to relieve Parkinsonian symptoms in animal models, according to a study published on April 2nd in the Journal of Experimental Medicine. The movement-related symptoms of Parkinson's disease, including muscle rigidity and tremors, are caused by the loss of dopamine-secreting neurons in the brain. Current therapies aim at increasing and maintaining dopamine levels to correct these motor impairments. However, these...

2012-02-24 18:00:26

A study from Karolinska Institutet shows that a new drug for Huntington's disease - pridopidine or dopamine stabilizer ACR16 - might operate via previously unknown mechanisms of action. Researchers have found that at very low concentrations, ACR16 binds to the sigma-1 receptor, a protein in the brain important to neuronal function and survival. This new knowledge can be used to develop future treatments for schizophrenia, involuntary Parkinsonian tremors and neurodegenerative diseases....

2012-02-23 13:43:46

Patients studied produced pictures, sculptures, novels and poetry Some Parkinson's Disease patients can suddenly become creative when they take dopamine therapy, producing pictures, sculptures, novels and poetry. But their new-found interests can become so overwhelming that they ignore other aspects of their everyday life, such as daily chores and social activities, according to research published in the March issue of the European Journal of Neurology. Italian researchers studied 36...

2012-02-08 18:30:41

Mark Twain said, "Giving up smoking is the easiest thing in the world. I know because I've done it thousands of times." Many smokers would agree that it's difficult to stay away from cigarettes. A new study in Biological Psychiatry this month now suggests that low dopamine levels that occur as a result of withdrawal from smoking actually promote the relapse to smoking. Dopamine is a brain chemical messenger that is critically important in reward and motivation. Some research suggests that...

2012-02-06 22:20:04

Researchers have found a way to study how our brains assess the behavior — and likely future actions — of others during competitive social interactions. Their study, described in a paper in the Proceedings of the National Academy of Sciences, is the first to use a computational approach to tease out differing patterns of brain activity during these interactions, the researchers report. “When players compete against each other in a game, they try to make a mental model of...


Word of the Day
blee
  • Color; hue; complexion.
This word is Middle English in origin.
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