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Communication breakdown between nerves and muscles in SMA mouse model

Researchers at the University of Missouri have identified a communication breakdown between nerves and muscles in mice that may provide new insight into the debilitating and fatal human disease known as spinal muscular atrophy.

27 Sep 2011

Wnt signaling pathway plays an important role in early-onset dementia

No cure exists for frontotemporal dementia, which strikes between the ages of 40 and 64 and accounts for at least one in four cases of early-onset dementia. Caused by the death of cells in the front and sides of the brain, the disease can lead to dramatic changes in a patient's personality and behavior, including the loss of the ability to communicate.

22 Sep 2011

Families help identify new gene for motor neuron disease

Families suffering from a history of motor neuron disease have helped an international scientific team locate a new gene linked to the incurable disease.

22 Sep 2011

Researchers identify common genetic mutation for ALS, frontotemporal dementia

Frontotemporal dementia and amyotrophic lateral sclerosis, also known as Lou Gehrig's disease -- two fatal neurodegenerative disease with distinct but sometimes overlapping symptoms -- are triggered by a common mutation in many cases, according to researchers who say they have identified the mutated gene.

22 Sep 2011

Zinc plays a critical role in regulating communication between brain cells

Zinc has been found to play a critical role in regulating communication between cells in the brain, possibly governing the formation of memories and controlling the occurrence of epileptic seizures.

22 Sep 2011

Scientists discover new genetic mutation for amyotrophic lateral sclerosis

A team led by scientists from Johns Hopkins and the National Institutes of Health has discovered a new genetic mutation for amyotrophic lateral sclerosis (ALS) and a related disease called frontotemporal dementia (FTD) that appears to account for more than a third of all inherited cases of these diseases.

22 Sep 2011

Scientists investigate how rhythmic activity of nerve cells supports spatial navigation

Prof. Dr. Motoharu Yoshida and colleagues from Boston University investigated how the rhythmic activity of nerve cells supports spatial navigation.

16 Sep 2011

Electron microscope reveals minute morphology of dendritic trees

Neurons in the brain play a role as an electric wire conveying an electrical signal. Because this electric wire is connected with various joints, various brain functions can occur. A neuron which has dendritic trees on it, receives the signals with many synapses located on those dendritic trees, and carries out functions by combining the received signals.

14 Sep 2011

Human gliomas release excess levels of glutamate and trigger seizures

Glioma, one of the most deadly and common types of brain tumor, is often associated with seizures, but the origins of these seizures and effective treatments for them have been elusive. Now a team funded by the National Institutes of Health has found that human gliomas implanted in mice release excess levels of the brain chemical glutamate, overstimulating neurons near the tumor and triggering seizures.

12 Sep 2011

WSU researcher receives $418,000 NINDS grant to study spinal muscular atrophy

Graham Parker, Ph.D., assistant professor of research in the Department of Pediatrics at Wayne State University's School of Medicine, was awarded $418,000 from the National Institute of Neurological Disorders and Stroke of the National Institutes of Health to study how a particular gene might be involved in the progression of spinal muscular atrophy (SMA) - the number one genetic killer of children younger than 2 years old.

12 Sep 2011

Ultrasonic neuromodulation can be quickly applied in neurocritical care situations

The discovery that low-intensity, pulsed ultrasound can be used to noninvasively stimulate intact brain circuits holds promise for engineering rapid-response medical devices.

9 Sep 2011

Dysregulated neuronal RNA transport may cause Fragile X-associated tremor/ataxia syndrome

SUNY Downstate scientist Ilham Muslimov, MD, PhD, along with senior author Henri Tiedge, PhD, professor of physiology and pharmacology and of neurology, published a study suggesting that cellular dysregulation associated with certain neurodegenerative disorders may result from molecular competition in neuronal RNA transport pathways.

8 Sep 2011

Excitation and inhibition remain balanced, even when the brain undergoes reorganization

Every second, the brain's nerve cells exchange many billions of synaptic impulses. Two kinds of synapses ensure that this flow of data is regulated: Excitatory synapses relay information from one cell to the next, while inhibitory synapses restrict the flow of information.

8 Sep 2011

Scientist identifies how lack of dopamine leads to symptoms of Parkinson's

A scientist at the Gladstone Institutes has identified how the lack of a brain chemical known as dopamine can rewire the interaction between two groups of brain cells and lead to symptoms of Parkinson's disease.

8 Sep 2011

Scientists discover two opposing neuronal regulatory circuits for generation, elimination of fear

Emotional balance is regulated by molecular factors behind stress response. When healthy people are faced with threatening situations, they react with a suitable behavioural response and do not descend into a state of either panic or indifference, as is the case, for example, with patients who suffer from anxiety.

7 Sep 2011

Researchers reveal mechanism behind how cells communicate

Cell communication is essential for the development of any organism. Scientists know that cells have the power to "talk" to one another, sending signals through their membranes in order to "discuss" what kind of cell they will ultimately become - whether a neuron or a hair, bone, or muscle. And because cells continuously multiply, it's easy to imagine a cacophony of communication.

6 Sep 2011

Two ALS-associated genes work in tandem to support long-term survival of motor neurons

Although several genes have been linked to amyotrophic lateral sclerosis (ALS), it is still unknown how they cause this progressive neurodegenerative disease. In a new study, Columbia University Medical Center (CUMC) researchers have demonstrated that two ALS-associated genes work in tandem to support the long-term survival of motor neurons.

2 Sep 2011

Johns Hopkins researchers reveal neuronal cell survival mechanism

Nerve cells that regulate everything from heart muscle to salivary glands send out projections known as axons to their targets. By way of these axonal processes, neurons control target function and receive molecular signals from targets that return to the cell body to support cell survival. Now, Johns Hopkins researchers have revealed a molecular mechanism that allows a signal from the target to return to the cell body and fulfill its neuron-sustaining mission.

31 Aug 2011

Study reveals striking brain similarities in bipolar disorder and schizophrenia

Researchers from the Royal College of Surgeons in Ireland (RCSI) and Beaumont Hospital have conducted a study which has found striking brain similarities in bipolar disorder and schizophrenia. The research has also pinpointed for the first time that a process which controls how information is transmitted from neuron to neuron in the brain is altered in both conditions and may potentially contribute to the developments of improved treatments in the future.

25 Aug 2011

Hippocampus neurons encode every sequential moment in series of events

The hippocampus is a brain structure that plays a major role in the process of memory formation. It is not entirely clear how the hippocampus manages to string together events that are part of the same experience but are separated by "empty" periods of time. Now, new research published by Cell Press in the August 25 issue of the journal Neuron finds that there are neurons in the hippocampus that encode every sequential moment in a series of events that compose a discrete experience.

25 Aug 2011