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Turn-ons and turn-offs for neurons
06-19-2007 · EurekAlert!In the June 20 issue of the online, open-access journal PLoS ONE, Dr. Mazahir Hasan and colleagues report that genes which had been inactive in neurons during early mouse development become functionally silenced in the adult brain.
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Keywords: turn-ons, turn-offs, neurons, turn, ons, offs, neuron
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03-14-2007 · EurekAlert!
Rockefeller University scientists show that embryonic stem cells implanted in the brain appear to develop into fully differentiated granule neurons, the most plentiful neuron in the cerebellum. The findings are a step toward understanding how embryonic stem cells could be regulated in vivo and ultimately used for cell replacement therapy, especially after childhood tumors, in the central nervous system.
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- Experience affects new neuron survival in adult brain; study sheds light on learning, memory
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11-02-2006 · EurekAlert!
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- MIT: Pulsing light silences overactive neurons
03-27-2007 · EurekAlert!
Scientists at the MIT Media Lab have invented a way to reversibly silence brain cells using pulses of yellow light, offering the prospect of controlling the haywire neuron activity that occurs in diseases such as epilepsy and Parkinson's disease.
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- Engineers' pulsing light silences overactive neurons
03-27-2007 · Massachusetts Institute of Technology (MIT)
Scientists at the MIT Media Lab have invented a way to reversibly silence brain cells using pulses of yellow light, offering the prospect of controlling the haywire neuron activity that occurs in diseases such as epilepsy and Parkinson's disease.
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10-24-2007 · EurekAlert!
Diseases that cause neurons to break down, such as Alzheimer's, continue to be elusive to scientists and resistant to treatments. A new finding from University of Michigan researchers demonstrates an unpredicted link between a virtually unknown signaling molecule and neuron health. In a study released in PNAS this week, Lois Weisman connects the loss of this molecule to massive neurodegeneration in the brain, which plays a key role in the survival of nervous system cells.
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Signals from an electrode implanted in the area of the brain responsible for generating speech, could help paralysed people get their "voice" back. Neuroscientists are able to record the signals from the neurons that surround the electrode. By analyzing the signals created when a "locked-in" patient imagines speaking, researchers have developed software that they hope one day will turn their thoughts into speech.
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- Carnegie Mellon study reveals that odor discrimination is linked to the timing at which neurons fire
11-07-2006 · EurekAlert!
Timing is everything. For a mouse trying to discriminate between the scent of a tasty treat and the scent of the neighborhood cat, timing could mean life or death. In a striking discovery, Carnegie Mellon University scientists have linked the timing of inhibitory neuron activity to the generation of odor-specific patterns in the brain's olfactory bulb, the area of the brain responsible for distinguishing odors.
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