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Study reveals link between serotonin receptor number and antidepressant treatment

An excess of one type of serotonin receptor in the center of the brain may explain why antidepressants fail to relieve symptoms of depression for 50 percent of patients, a new study from researchers at Columbia University Medical Center shows.

18 Jan 2010

Brain mechanisms behind compulsive behaviors in Parkinson's disease patients

New research unravels the brain mechanisms that underlie the ability of a standard drug treatment for Parkinson's to elicit compulsive behaviors in some patients with the disease. The study, published by Cell Press in the January 14th issue of the journal Neuron, provides fascinating new insight into the brain mechanisms that underlie a predisposition to behavioral addictions, such as pathological gambling and shopping.

18 Jan 2010

New discovery likely to have significant influence on cell replacement therapies

MIT neuroscientists have discovered that when it comes to new neurons in the adult brain, the squeakiest wheels get the grease.

18 Jan 2010

Study provides strong evidence that intense neural activity underlies the experience of seeing

How do the visual images we experience, which have no tangible existence, arise out of physical processes in the brain? New research at the Weizmann Institute of Science provided evidence, for the first time, that an 'ignition' of intense neural activity underlies the experience of seeing.

18 Jan 2010

New findings may yield novel therapies for chronic neurodegenerative diseases

We all have at one time or another experienced the typical signs of an infection: the fever, the listlessness, the lack of appetite. They are orchestrated by the brain in response to circulating cytokines, the signaling molecules of the immune system. But just how cytokines' reach extends beyond the almost impenetrable blood-brain barrier has been the topic of much dispute.

18 Jan 2010

Findings may pave way for significant advancements in cochlear implant technology for hearing loss

Loss of spiral ganglion neurons or hair cells in the inner ear is the leading cause of congenital and acquired hearing impairment. Researchers at the University of California, San Diego, School of Medicine and the National Institutes of Health found that Sox2, a protein that regulates stem cell formation, is involved in spiral ganglion neuron development. The study was published in the January 13 issue of the Journal of Neuroscience.

13 Jan 2010

Studies show naturally-occurring protein in humans restores motor function in rats after a stroke

People with impaired mobility after a stroke soon may have a therapy that restores limb function long after the injury, if a supplemental protein works as well in humans as it does in paralyzed rats.

13 Jan 2010

GIND scientists identify major role of TDP-43 in two neurodegenerative diseases

Scientists at the Gladstone Institute of Neurological Disease (GIND) have identified the reason a key protein plays a major role in two neurodegenerative diseases.

13 Jan 2010

Combination of advanced techniques in robotics and neuroscience shows promise for stroke patients

Bioengineers have taken a small step toward improving physical recovery in stroke patients by showing that a key feature of how limb motion is encoded in the nervous system plays a crucial role in how new motor skills are learned.

8 Jan 2010

Nutrient mix shows potential to improve memory in Alzheimer's patients

In the early stages of Alzheimer's disease, patients typically suffer a major loss of the brain connections necessary for memory and information processing. Now, a combination of nutrients that was developed at MIT has shown the potential to improve memory in Alzheimer's patients by stimulating growth of new brain connections.

7 Jan 2010

Talampanel slows progression of amyotrophic lateral sclerosis

A drug already used to treat symptoms of epilepsy has potential to slow the muscle weakening that comes with amyotrophic lateral sclerosis (ALS), scientists report after completing a Phase II clinical trial-an early, small-scale test to show if the drug works and continues to be safe.

5 Jan 2010

Study explains how semaphorin gene regulates synapse formation

By combining a research technique that dates back 136 years with modern molecular genetics, a Johns Hopkins neuroscientist has been able to see how a mammal's brain shrewdly revisits and reuses the same molecular cues to control the complex design of its circuits.

29 Dec 2009

First animal model for studying schizophrenia

Scientists have created what appears to be a schizophrenic mouse by reducing the inhibition of brain cells involved in complex reasoning and decisions about appropriate social behavior.

29 Dec 2009

New evidence suggests amyloid beta plays a critical role in synaptic failure

The early stages of Alzheimer's disease are thought to occur at the synapse, since synapse loss is associated with memory dysfunction. Evidence suggests that amyloid beta (Aβ) plays an important role in early synaptic failure, but little has been understood about Aβ's effect on the plasticity of dendritic spines.

29 Dec 2009

Brain circuit that holds the memory discovered

Ben W. Strowbridge, PhD, associate professor of neuroscience and physiology/biophysics, and Phillip Larimer, PhD, a MD/PhD student in the neurosciences graduate program at Case Western Reserve University School of Medicine, are the first to create stimulus-specific sustained activity patterns in brain circuits maintained in vitro.

28 Dec 2009

Test tube experiments show slight changes in protein chemistry can eliminate Huntington's disease in mice

In Huntington's disease, a mutated protein in the body becomes toxic to brain cells. Recent studies have demonstrated that a small region adjacent to the mutated segment plays a major role in the toxicity. Two new studies supported by the National Institutes of Health show that very slight changes to this region can eliminate signs of Huntington's disease in mice.

28 Dec 2009

Scientists uncover a central process in memory encoding

Scientists at UC Santa Barbara have made a major discovery in how the brain encodes memories. The finding, published in the December 24 issue of the journal Neuron, could eventually lead to the development of new drugs to aid memory.

24 Dec 2009

Key molecular switch linked to HD identified

Scientists have identified a key molecular switch that may drive the onset of Huntington's disease (HD), an incurable neurodegenerative disorder that leads to severe disruptions in muscle coordination and cognitive function. The research, published by Cell Press in the December 24 issue of the journal Neuron, enhances the understanding of HD pathogenesis and may direct new strategies for treating this devastating brain disease.

24 Dec 2009

Potential new therapeutic option for prevention of PD-associated neuropathology

Scientists have identified a synergistic interaction that disrupts normal intracellular transport mechanisms and leads to the accumulation of neuron-damaging clumps of protein associated with Parkinson's disease (PD), a neurodegenerative disorder that is characterized by a specific loss of neurons in the midbrain and brainstem. The research, published by Cell Press in the December 24 issue of the journal Neuron, identifies a new potential therapeutic option for preventing PD-associated neuropathology.

24 Dec 2009

Study: Protein channel aids nerve sensors in controlling blood pressure

University of Iowa researchers have shown that a protein channel helps nerve sensors in blood vessels keep blood pressure in check. Without the protein channel, known as ASIC2, the sensors are unable to send the brain the signals it needs to properly control blood pressure.

24 Dec 2009