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Latest Catecholamines Stories

2010-03-04 08:46:16

ATLANTA - Physicians treating patients with shock should consider norepinephrine instead of dopamine as a tool for stabilizing blood pressure, according to an editorial in the March 4, 2010, issue of the New England Journal of Medicine (NEJM). Jerrold Levy, MD, FAHA, professor and deputy chair for research, Department of Anesthesiology, Emory University School of Medicine, and co-director of cardiothoracic anesthesiology, Emory Healthcare, authored the editorial. The editorial accompanies a...

2010-02-03 13:51:55

People have typically viewed the benefits that accrue with social status primarily from the perspective of external rewards. A new paper in the February 1st issue of Biological Psychiatry, published by Elsevier suggests that there are internal rewards as well. Dr. Martinez and colleagues found that increased social status and increased social support correlated with the density of dopamine D2/D3 receptors in the striatum, a region of the brain that plays a central role in reward and...

2010-02-01 17:41:23

Our need for stimulation and dopamine's action upon the brain are connected, which explains why people who constantly crave stimulation are in danger of addictive behavior such as drug abuse and gambling. The urge to actively seek out new experiences is a personality trait that psychologists have known about for years, but up until now scientists have been unable to prove how this urge relates to hormonal activities in the brain. Now, an international research team made up of scientists from...

2010-01-20 18:13:32

A new brain-based computational model is helping to understand how Parkinson's disease and dopamine medications"”used to treat motor symptoms caused by the disease"” can affect learning and attention. As reported in a forthcoming article in the Journal of Cognitive Neuroscience, http://www.mitpressjournals.org/doi/pdf/10.1162/jocn.2010.21420, a new computational model, developed by Drs. Ahmed Moustafa and Mark Gluck, at the Center for Molecular and Behavioral Neuroscience at...

2009-12-21 06:30:00

NEW YORK, Dec. 21 /PRNewswire/ -- Intra-Cellular Therapies, Inc. (ITI) announced at a recent conference on neuropsychiatric diseases the results from a recently completed Phase I clinical study demonstrating ITI-007, the Company's lead antipsychotic drug, interacts with important targets in the living human brain. These key targets are critical to drug action in many neuropsychiatric and related disorders. Using positron emission tomography (PET) to image receptor interactions, ITI-007...

2009-12-08 17:57:55

Loss of the gene that causes Rett syndrome disrupts the production of neurotransmitters in specific nerve cells, causing the movement and behavioral problems typical of the disease, said a research team led by those at Baylor College of Medicine in a report online today in the Proceedings of the National Academy of Sciences. "Abnormalities in MeCP2 (methyl-CpG binding protein) lead to decreased production of enzymes that control production of the neurotransmitters dopamine, norepinephrine and...

2009-11-12 12:39:58

People constantly make complex decisions, from the more mundane"”which restaurant to go to for dinner or which movie to go see"”to the more profound"”whether to have kids or not. Now, a new study published online on November 12th in Current Biology, a Cell Press publication, confirms an important role for the brain chemical dopamine in how people make such life choices, by influencing our expectations of the pleasure associated with their outcomes. "Humans make much more...

2009-11-12 12:31:20

Enhancing the effects of the brain chemical dopamine influences how people make life choices by affecting expectations of pleasure, according to new research from the UCL Institute of Neurology. The study, published today in Current Biology, confirms an important role for dopamine in how human expectations are formed and how people make complex decisions. It also contributes to an understanding of how pleasure expectation can go awry, for example in drug addiction. Dopamine is a...

2009-11-03 10:35:31

Researchers at Iowa State University have found an essential key to possibly cure Parkinson's disease and are looking for others. Anumantha Kanthasamy, a distinguished professor of biomedical sciences and W. Eugene and Linda R. Lloyd Endowed Chair in Neurotoxicology at the ISU College of Veterinary Medicine, has been working to understand the complex mechanisms of the disease for more than a decade and thinks he has found hope for the cure. Parkinson's disease sufferers lack a sufficient...

2009-10-26 22:35:28

Mother-child attachments in animals and possible parallels in people When do you first leave the nest? Early in development infants of many species experience important transitions"”such as learning when to leave the protective presence of their mother to start exploring the wider world. Neuroscientists have now pinpointed molecular events occurring in the brain during that turning point. Based on animal studies, the findings may shed light on the strength of attachments in many...


Word of the Day
caparison
  • A cloth or covering, more or less ornamented, laid over the saddle or furniture of a horse, especially of a sumpter-horse or horse of state.
  • Clothing, especially sumptuous clothing; equipment; outfit.
  • To cover with a caparison, as a horse.
  • To dress sumptuously; adorn with rich dress.
This word ultimately comes from the Medieval Latin 'cappa,' cloak.
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