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Basis of antidepressant drugs and electroconvulsive therapy found

Through a series of investigations in mice and humans, Johns Hopkins researchers have identified a protein that appears to be the target of both antidepressant drugs and electroconvulsive therapy. Results of their experiments explain how these therapies likely work to relieve depression by stimulating stem cells in the brain to grow and mature.

7 Feb 2013

Liver gene found to regulate cholesterol and fat blood levels

Researchers have identified a microRNA liver gene, miR-27b, which regulates lipid (cholesterol or fat) levels in the blood. This regulator gene controls multiple genes involved in dyslipidemia—abnormal blood cholesterol levels that can contribute to heart disease.

7 Feb 2013

Migraine, epilepsy and genetics: an interview with Dr. Melodie Winawer

This work is the product of an extraordinary consortium called the Epilepsy Phenome/Genome project (EPGP). It is a consortium of 27 centres in the U.S. and internationally with several hundred physicians and staff who have worked together to enrol more than 4000 patients with epilepsy and their family members.

7 Feb 2013

Study findings suggest physical and pharmacological solutions for human stroke victims

Johns Hopkins researchers have found that mice can recover from physically debilitating strokes that damage the primary motor cortex, the region of the brain that controls most movement in the body, if the rodents are quickly subjected to physical conditioning that rapidly "rewires" a different part of the brain to take over lost function.

6 Feb 2013

DCC receptor plays key role in regulating brain plasticity

Our ability to learn and form new memories is fully dependent on the brain's ability to be plastic - that is to change and adapt according to new experiences and environments. A new study from the Montreal Neurological Institute - The Neuro, McGill University, reveals that DCC, the receptor for a crucial protein in the nervous system known as netrin, plays a key role in regulating the plasticity of nerve cell connections in the brain.

5 Feb 2013

Presenilin-1 gene plays central role in development of neuronal histamine system

Researchers at University of Helsinki, Finland, have shown in a study conducted on zebrafish, that the presenilin-1 (psen1) gene associated with Alzheimer's disease functions as a central regulator for the development of the histamine system. Histamine system is also altered in patients suffering from Alzheimer's disease.

5 Feb 2013

Nitric oxide shuts down brain's repair mechanisms

Nitric oxide, a gaseous molecule produced in the brain, can damage neurons. When the brain produces too much nitric oxide, it contributes to the severity and progression of stroke and neurodegenerative diseases such as Alzheimer's. Researchers at Sanford-Burnham Medical Research Institute recently discovered that nitric oxide not only damages neurons, it also shuts down the brain's repair mechanisms.

5 Feb 2013

NFL funds WSU research to fix injured brains with new nerve cells

The National Football League thinks enough of the work that its charitable arm has given Krzysztof Czaja (pronounced K-shish-toff Chai-uh), a Washington State University neuroscientist, $100,000 to keep looking.

4 Feb 2013

Scientists visualise molecular changes in Bax protein that force cells to die

Scientists at the Walter and Eliza Hall Institute have for the first time visualised the molecular changes in a critical cell death protein that force cells to die.

3 Feb 2013

Neural stem cell transplantation shows promise against gastrointestinal motility disorders

Proper function of the digestive system requires coordinated contraction of the muscle in the wall of the intestinal tract, regulated by the enteric nervous system.

2 Feb 2013

DHEA-S may prevent neurocognitive impairment that affects AIDS patients

A team of scientists from Canada, Thailand and Morocco have found that DHEA-S may prevent neurocognitive impairment that affects a significant percentage of AIDS patients. In a report appearing in the February 2013 issue of The FASEB Journal, they describe how a network of steroid molecules found in the brain, termed "neurosteroids," is disrupted during HIV infection leading to brain damage.

2 Feb 2013

Erbin protein critical to brain excitement

Scientists have found an early step in how the brain's inhibitory cells get excited. A natural balance of excitement and inhibition keeps the brain from firing electrical impulses randomly and excessively, resulting in problems such as schizophrenia and seizures. However excitement is required to put on the brakes.

31 Jan 2013

Study illuminates the response of dopaminergic neurons to changes in temperature

While the wooly musk ox may like it cold, fruit flies definitely do not. They like it hot, or at least warm. In fact, their preferred optimum temperature is very similar to that of humans-76 degrees F.

31 Jan 2013

Biomaterials as neural stem cell niches can help repair damage in the CNS

Despite recent advances in understanding the mechanisms of nerve injury, tissue-engineering solutions for repairing damage in the central nervous system (CNS) remain elusive, owing to the crucial and complex role played by the neural stem cell (NSC) niche. This zone, in which stem cells are retained after embryonic development for the production of new cells, exerts a tight control over many crucial tasks such as growth promotion and the recreation of essential biochemical and physical cues for neural cell differentiation.

30 Jan 2013

MiR-182 deeply involved in memory formation within the amygdala brain structure

It takes a lot to make a memory. New proteins have to be synthesized, neuron structures altered. While some of these memory-building mechanisms are known, many are not. Some recent studies have indicated that a unique group of molecules called microRNAs, known to control production of proteins in cells, may play a far more important role in memory formation than previously thought.

30 Jan 2013

MDGA proteins associated with autism suppress inhibitory synapse formation

Synapse development is promoted by a variety of cell adhesion molecules that connect neurons and organize synaptic proteins. Many of these adhesion molecules are linked to neurodevelopmental disorders; mutations in neuroligin and neurexin proteins, for example, are associated with autism and schizophrenia.

30 Jan 2013

Apolipoprotein E-4 useful in promoting neuron growth in the lab

A protein associated with neuron damage in people with Alzheimer's disease is surprisingly useful in promoting neuron growth in the lab, according to a new study by engineering researchers at Brown University.

30 Jan 2013

RIKEN, OIST partner on Human Brain Project

One of the major frontiers of modern science is a comprehensive understanding of the human brain and its functions to guide the development of new technologies in information and communication.

30 Jan 2013

Consuming carotenoid-rich foods may help prevent or delay onset of amyotrophic lateral sclerosis

New research suggests that increased consumption of foods containing colorful carotenoids, particularly beta-carotene and lutein, may prevent or delay the onset of amyotrophic lateral sclerosis (ALS).

29 Jan 2013

Study examines how fear responses are learned, controlled and memorized

A rustle of undergrowth in the outback: it's a sound that might make an animal or person stop sharply and be still, in the anticipation of a predator. That "freezing" is part of the fear response, a reaction to a stimulus in the environment and part of the brain's determination of whether to be afraid of it.

29 Jan 2013