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Racing neurons control whether we stop or go
04-18-2007 · EurekAlert!In the children's game "red light green light," winners are able to stop, and take off running again, more quickly than their comrades. New research reveals that a similar race goes on in our brains, with impulse control being the big winner.
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Keywords: racing, neurons, control, whether, stop, neuron
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- Insight into dopamine role suggests new treatment pathway for Parkinson's
10-18-2006 · EurekAlert!
Dopamine (DA) not only functions as a neurotransmitter, a chemical messenger between neurons by which one neuron triggers another, researchers have found. It also appears to coordinate the activity of a particular neural circuitry. In studies with mice, they found evidence that the dopamine deficiency in Parkinson's and other related movement disorders may cause loss of muscle control and paralysis due to disruption of coordinated activity in this circuit.
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- Groups and grumps: Study identifies 'sociality' neurons
10-23-2006 · EurekAlert!
A University of California, San Diego study has for the first time identified brain cells that influence whether birds of a feather will, or will not, flock together. The research demonstrates that vasotocin neurons in the medial extended amygdala -- which are present in most animals, including humans -- respond differently to social cues in birds that live in colonies compared to their more solitary cousins.
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- Hopkins researchers discover how brain protein might control memory
11-10-2006 · EurekAlert!
Researchers at Johns Hopkins have figured out how one particular protein contributes to long-term memory and helps the brain remember things longer than an hour or two. The findings are reported in two papers in the November 9 issue of Neuron.
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- 'Skinny gene' does exist, UT Southwestern researchers find
09-04-2007 · EurekAlert!
Researchers at UT Southwestern Medical Center have found that a single gene might control whether or not individuals tend to pile on fat, a discovery that may point to new ways to fight obesity and diabetes.
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- Silencing small but mighty cancer inhibitors
12-10-2007 · EurekAlert!
Researchers from Johns Hopkins and the University of Pennsylvania have uncovered another reason why one of the most commonly activated proteins in cancer is in fact so dangerous. As reported in Nature Genetics this week, the Myc protein can stop the production of at least 13 microRNAs, small pieces of nucleic acid that help control which genes are turned on and off.
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- Health care system for aging nerve cells
03-13-2007 · EurekAlert!
Uncontrolled neuronal death in the brain often gives rise to neurodegenerative illnesses like Parkinson or Alzheimer disease. Whether or not neurons have a long and healthy life is, apart from other factors, determined by the presence of neurotrophic factors. Scientists of the Max Planck Institute of Neurobiology have now provided unambiguous proof that the presence of the neurotrophic factor GDNF and its receptor Ret are essential for the survival of neurons in a specific brain region.
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- Slow but sure -- Burned forest lands regenerate naturally
04-04-2007 · EurekAlert!
A new study of forest lands that burned in the 1990s in northern California and southwestern Oregon has concluded there is a "fair to excellent" chance that an adequate level of conifers will regenerate naturally, in sites that had no manual planting or other forest management. Whether lands should be planted and weed competition controlled is more a question of short-term timber production, tree species control and forest management goals than the regeneration of the forest, the study indicated.
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- The future of medicine -- Insert chip, cure disease?
07-25-2007 · EurekAlert!
Imagine a chip, strategically placed in the brain, that could prevent epileptic seizures or allow someone to control an artificial arm just by thinking about it. It may sound like science fiction, but University of Florida researchers are developing devices that can stimulate neurons to perform correctly, advances that might make it possible for a tiny computer to fix diseases or allow a paralyzed person to control a prosthesis with his thoughts.
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- 'Skinny gene' does exist, researchers find
09-04-2007 · UT Southwestern Medical Center
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- Researchers map signaling networks that control neuron function
01-28-2008 · EurekAlert!
In the first large-scale proteomics study of its kind, researchers at the University of California-San Diego School of Medicine have mapped thousands of neuronal proteins to discover how they connect into complex signaling networks that guide neuron function. Their research -- using quantitative mass spectrometry, computational software and bioinformatics to match the proteins to their cellular functions -- may lead to a better understanding of brain development, neurodegenerative diseases, and spinal cord regeneration.
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