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Latest Chemical synapse Stories

2009-10-30 23:52:49

Scientists discover lipid may be vital to learning Saturated fats have a deservedly bad reputation, but Johns Hopkins scientists have discovered that a sticky lipid occurring naturally at high levels in the brain may help us memorize grandma's recipe for cinnamon buns, as well as recall how, decades ago, she served them up steaming from the oven. The Hopkins team, reporting Oct. 29 in Neuron, reveals how palmitate, a fatty acid, marks certain brain proteins "“ NMDA receptors "“...

2009-10-19 07:39:41

New data about amyloid precursor protein, or APP, a protein implicated in development of Alzheimer's disease, suggests it also may have a positive role -- directly affecting learning and memory during brain development. So is APP good or bad? Researchers at Georgetown University Medical Center say both, and that a balance of APP is critical. Alzheimer's disease, the fourth leading cause of death in the United States, is characterized by neuronal cell death and a progressive loss of...

2009-10-17 08:35:14

The cause, or at least one of the possible causes, of memory loss amongst Alzheimer sufferers is related to the location of certain proteins. The aim of this University of the Basque Country (UPV/EHU) PhD thesis was to analyze the location of certain proteins related to Alzheimer´s. The author of the thesis was Ms Naroa Anabitarte Gonzalez and her work is entitled, Alzheimer gaixotasunarekin erlazionatutako proteinen ultraegitura mailako kokapena baldintza fisiologikoetan:...

2009-10-13 15:17:12

A Duke University Medical Center researcher who spent years looking for the signals that prompt the brain to form new connections between neurons has found one that may explain precisely how a well-known drug for epilepsy and pain actually works. The finding may also point to new therapies for brain injury and neuropathic pain. The role of neurons in the brain and nervous system is well known, but astrocytes, a different type of brain cell, still are largely a mystery. Duke scientist Cagla...

2009-10-09 09:15:33

Questions raised about use of antiseizure drug Researchers at the Stanford University School of Medicine have identified a key molecular player in guiding the formation of synapses "” the all-important connections between nerve cells "” in the brain. This discovery, based on experiments in cell culture and in mice, could advance scientists' understanding of how young children's brains develop as well as point to new approaches toward countering brain disorders in adults. The new...

2009-10-08 08:20:15

Scientists create nerve cell connections in vitro using artificial substances, a major advance towards nerve cell repair The repair of damaged nerve cells is a major problem in medicine today. A new study by researchers at the Montreal Neurological Institute and Hospital (The Neuro) and McGill University, is a significant advance towards a solution for neuronal repair. The study featured on the cover of the October 7 issue of Journal of Neuroscience, is the first to show that nerve cells will...

2009-09-30 07:27:11

Chaos brews in the brains of newborns: the nerve cells are still bound only loosely to each other. Under the leadership of Academy Research Fellow Sari Lauri, a team of researchers at the University of Helsinki has been studying for years how a neural network capable of processing information effectively is created out of chaos. The team has now found a new kind of mechanism that adjusts the functional development of nerve cell contacts. The results were published in early September as the...

2009-09-15 08:46:09

Dendrites integrate thousands of inputs locally before sending signals to central axon A tiny neuron is a very complicated structure. Its complex network of dendrites, axons and synapses is constantly dealing with information, deciding whether or not to send a nerve impulse, to drive a certain action. It turns out that neurons, at one level, operate like another complicated structure -- the United States, particularly its system of electing a president, through the Electoral College. A new...

2009-09-15 08:08:33

U.S. scientists say a new study of neurons supports one of several competing models that attempt to explain how neurons integrate synaptic inputs. Northwestern University researchers in Evanston, Ill., say a neuron is a very complex structure, with dendrites integrating thousands of inputs before it sends a signal to a central axon. Synapses constantly deal with information, deciding whether to send a nerve impulse to drive a certain action. The Northwestern scientists say their study...

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2009-09-07 09:53:13

Fifty years after it was originally discovered, scientists at the Friedrich Miescher Institute for Biomedical Research have elucidated the function of a microscopic network of tubules found in neurons. This structure modulates the strength of connections between two neurons, thereby contributing to our ability to learn and to adapt to new situations. For neurobiologist Thomas Oertner of the Friedrich Miescher Institute for Biomedical Research, which is part of the Novartis Research...


Word of the Day
bibliopole
  • A bookseller; now, especially, a dealer in rare and curious books.
This word comes from a Greek phrase meaning 'book seller.'
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