Synapse News and Research

RSS

UCLA neuro-physicists discover optimal brain rhythm for changing synaptic strength

The brain learns through changes in the strength of its synapses -- the connections between neurons -- in response to stimuli. Now, in a discovery that challenges conventional wisdom on the brain mechanisms of learning, UCLA neuro-physicists have found there is an optimal brain "rhythm," or frequency, for changing synaptic strength. And further, like stations on a radio dial, each synapse is tuned to a different optimal frequency for learning.

4 Oct 2011

La Jolla Institute scientist identifies previously unknown T cell interaction

Most of the time, the immune system is the body's protector, warding off invading viruses and bacteria before they can lead to infection and disease. But in autoimmune diseases, the immune system does an about face, turning on the body and attacking normal cells.

3 Oct 2011

FDA approves NeuRx Diaphragm Pacing System to treat ALS

An electronic system that stimulates the nerve of the diaphragm muscles has received approval from the Food and Drug Administration (FDA) for use in patients with Amyotrophic Lateral Sclerosis (ALS), also known as Lou Gehrig's disease.

30 Sep 2011

STED microscope reveals that F-actin pervades immunological synapse

Making use of a new "super resolution" microscope that provides sharp images at extremely small scales, scientists have achieved unprecedented views of the immune system in action.

14 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

General anesthesia can cause cognitive impairment in children

General anesthesia administered to the developing animal brain depresses much needed neuronal activity and communication resulting in long-lasting cognitive impairment, according to an article published in the August issue of Current Opinion in Anesthesiology.

12 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

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

New role for harmonin protein in Usher syndrome

University of Iowa scientists have discovered a new role for a protein that is mutated in Usher syndrome, one of the most common forms of deaf-blindness in humans. The findings, which were published Aug. 8 in Nature Neuroscience, may help explain why this mutation causes the most severe form of the condition.

16 Aug 2011

Scientist determines how nyctalopin gene makes night vision possible

A scientist from the Florida campus of The Scripps Research Institute has determined how a particular gene makes night vision possible. The study, which was published in the August 10, 2011 edition of The Journal of Neuroscience, focuses on a gene called nyctalopin. Mutations in the gene result in inherited "night blindness," a loss of vision in low-light environments.

10 Aug 2011

FUJIFILM announces commercial availability of Synapse version 6.0

FUJIFILM Medical Systems U.S.A. today announced the commercial availability of version 6.0, the latest version of the company's Synapse RIS and Synapse TeleRIS applications.

26 Jul 2011

New research helps explain how memories are stored at synapses

Have a tough time remembering where you put your keys, learning a new language or recalling names at a cocktail party? New research from the Lisman Laboratory at Brandeis University points to a molecule that is central to the process by which memories are stored in the brain. A paper published in the June 22 issue of the Journal of Neuroscience describes the new findings.

24 Jun 2011

New surprising details about flow of neurotransmitters between brain neurons

Two studies featuring research from Weill Cornell Medical College have uncovered surprising details about the complex process that leads to the flow of neurotransmitters between brain neurons -- a dance of chemical messages so delicate that missteps often lead to neurological dysfunction.

23 Jun 2011

Johns Hopkins scientists develop mouse model for autism spectrum disorders

In an effort to unravel the tangled biology of autism, Johns Hopkins scientists have created a mouse model that mimics a human mutation of a gene known to be associated with autism spectrum disorders.

21 Jun 2011

Synaptophysin controls replacement of vesicles

A University of Wisconsin-Madison research team has solved a 25-year mystery that may lead to better treatments for people with learning deficits and mental retardation.

9 Jun 2011

Autism caused by hundreds of different genetic mutations: Study

New research shows that autism is not caused by one or two gene defects but probably by hundreds of different mutations, many of which arise spontaneously. This comes from the study that has examined the genes of more than 1,000 families.

9 Jun 2011

Scientists discover protein involved in nerve cell motor-cargo mechanism

With every bodily movement-from the blink of an eye to running a marathon-nerve cells transmit signals to muscle cells. To do that, nerve cells rely on tiny molecular motors to transport chemical messengers that excite muscles cells into action. It's a complex process, which scientists are still trying to understand. A new study by Syracuse University researchers has uncovered an important piece of the puzzle.

26 May 2011

Scientists discover how immune cells recognize invading pathogens in the body

Scientists at Cedars-Sinai Medical Center have discovered how a molecular receptor on the surface of white blood cells identifies when invading fungi have established direct contact with the cell surface and pose an infectious threat.

30 Apr 2011

Scientists weaken long-term memory

Could veterans of war, rape victims and other people who have seen horrific crimes someday have the traumatic memories that haunt them weakened in their brains? In a new study, UCLA life scientists report a discovery that may make the reduction of such memories a reality.

28 Apr 2011