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Brain's cannabinoid system 'mellows' seizures
The same brain machinery that responds to the active substance in marijuana provides a central "on-demand" protection against seizures, researchers have found. They said their discoveries suggest that the "endocannabinoid" system might constitute a prime target for drugs against seizures of epilepsy and other neurodegenerative... view more... (2006-08-17)
Cellular cues identified for stroke recovery
When a stroke strikes, the supply of blood to the part of the brain affected is interrupted, starving it of oxygen. Brain cells can be seriously damaged or die, impairing local brain function. view more (2006-12-26)
Dissecting the machinery of nicotine's reward
Understanding what makes people crave the high of nicotine is a key to developing treatment for this highly addictive drug. And that understanding involves tracing the neural machinery by which nicotine switches on the brain's reward machinery. view more (2006-06-15)
Dying of excitement
For neurons, overexcitement is deadly. To avoid this, brain cells must sop up unneeded neurotransmitters from the synapse through membrane-bound transporters. If these transporters fail, neurons and other brain cells get excited to death- a phenomenon that may contribute to brain damage during stroke and Alzheimer's disease. view more (2006-03-06)
How seizures progress to epilepsy in the young
A major mystery in epilepsy research has been why infants are more prone to seizures than adults and how those seizures progress to chronic epilepsy. view more (2005-12-08)
Animal model of Parkinson's disease reveals striking sensitivity to common environmental toxins
In findings that support a relationship between agricultural chemicals and Parkinson's disease, two groups of researchers have found new evidence that loss of DJ-1, a gene known to be linked to inherited Parkinson's disease, leads to striking sensitivity to the herbicide paraquat and the insecticide rotenone. view more (2005-09-07)
Time-Keeping Brain Neurons Discovered
Groups of neurons that precisely keep time have been discovered in the primate brain by a team of researchers that includes Dezhe Jin, assistant professor of physics at Penn State University and two neuroscientists from the RIKEN Brain Science Institute in Japan and the Massachusetts Institute of Technology (MIT). view more (2009-10-22)
Zinc plays important role in brain circuitry
To the multitude of substances that regulate neuronal signaling in the brain and spinal cord add a new key player: zinc. By engineering a mouse with a mutation affecting a neuronal zinc target, researchers have demonstrated a central role for zinc in modulating signaling among the neurons. view more (2006-11-27)
Limiting stroke damage is focus of study
Brain damage that occurs even days after a stroke, increasing stroke size and devastation, is the focus of researchers trying to identify new treatments. view more (2007-05-31)
Streamlining brain signals for speed and efficacy
Life exists at the edge of chaos, where small changes can have striking and unanticipated effects, and major stimuli may go unheard. view more (2008-10-23)
Researchers Pinpoint Neural Nanoblockers in Carbon Nanotubes
A team of Brown University scientists has pinpointed why carbon nanotubes tend to block a critical signaling pathway in neurons. view more (2009-08-28)
New Study Shows that Fetal Cells Transplanted into the Brain to Treat Parkinson's Disease May Not Function Long Term
Neurons grafted into the brain of a patient with Parkinson's disease fourteen years ago have developed Lewy body pathology, the defining pathology for the disease, according to research by Jeffrey H. Kordower, PhD, and associates and published in the April 6 issue of Nature Medicine. view more (2008-04-07)
Study links Alzheimer's disease to abnormal cell division
A new study in mice suggests that Alzheimer's disease (AD) may be triggered when adult neurons try to divide. The finding helps researchers understand what goes wrong in the disease and may lead to new ways of treating it. view more (2006-01-18)
Salk research suggests the existence of specialized neurons that distinguish swagger from sway
It doesn't take John Wayne's deliberate, pigeon-toed swagger or Marilyn Monroe's famously wiggly sway to judge a person's gender based on the way they move. view more (2006-05-25)
Life and death in the living brain
Like clockwork, brain regions in many songbird species expand and shrink seasonally in response to hormones. Now, for the first time, University of Washington neurobiologists have interrupted this natural "annual remodeling" of the brain and have shown that there is a direct link between the death of old neurons and their replacement by... view more... (2009-08-11)
Now hear this
Deep in the ear, 95 percent of the cells that shuttle sound to the brain are big, boisterous neurons that, to date, have explained most of what scientists know about how hearing works. view more (2009-10-23)
Lend me your ears -- and the world will sound very different
Recognising people, objects or animals by the sound they make is an important survival skill and something most of us take for granted. But very similar objects can physically make very dissimilar sounds and we are able to pick up subtle clues about the identity and source of the sound. view more (2008-01-14)
Alcoholism may cause decreased density of neurons in the orbitofrontal cortex
Previous research has shown that alcoholism can cause damage to certain brain regions, including reduced metabolism, blood flow and tissue volume, as well as a reduced density of neurons and glial cells. view more (2006-10-25)
Carnegie Mellon study reveals that odor discrimination is linked to the timing at which neurons fire
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 view more (2006-11-08)
The secret to chimp strength
February's brutal chimpanzee attack, during which a pet chimp inflicted devastating injuries on a Connecticut woman, was a stark reminder that chimps are much stronger than humans-as much as four-times stronger, some researchers believe. view more (2009-03-31)
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