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Tag: inhibitory signaling

November 2010
News

Video: Synapses are key to understanding autism

by  /  18 November 2010

Proteins that function at the synapse, the junction between neurons, have been strongly linked to autism. At the Society for Neuroscience annual meeting in San Diego, Mriganka Sur, professor of neuroscience at the Massachusetts institute of technology, explained how studying synapses is revolutionizing our understanding of autism.

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Imaging study of autism finds imbalance of signals

by  /  18 November 2010

Children with autism have an imbalance of excitation and inhibition in the brain, according to the first study to measure synchrony between brain networks using magnetoencephalography (MEG). The findings were presented Wednesday at the Society for Neuroscience annual meeting in San Diego.

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Video: Inhibitory neurons involved in Rett syndrome

by  /  17 November 2010

In a study published last week, Huda Zoghbi’s team showed that neurons that produce a neurotransmitter called gamma-aminobutyric acid, or GABA, play a crucial role in the development of Rett syndrome. Zoghbi caught up with SFARI at the Society for Neuroscience annual meeting in San Diego to discuss the study’s implications for understanding autism.

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Autism brains characterized by fewer excitatory neurons

by  /  16 November 2010

People with autism have structural differences in the temporal cortex — a brain region involved in sound and language processing — compared with controls, according to a postmortem study presented Monday at the Society for Neuroscience annual meeting in San Diego.

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Stem cell assay reveals early development of Rett neurons

by  /  16 November 2010

Researchers have developed the first stem cell system that makes it possible to study the early development of neurons from people with Rett syndrome, a rare disorder on the autism spectrum.

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Rett gene needed to stabilize synaptic strength

by  /  16 November 2010

Blocking the expression of the MeCP2 gene decreases the number of synapses, the junctions between neurons. It also prevents synapses from scaling up their activity to make up for the loss, according to unpublished data shown yesterday at the Society for Neuroscience annual meeting in San Diego.

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Researchers debut new mouse model for Rett syndrome

by  /  11 November 2010

A new mouse model for Rett syndrome shows that disrupting a single brain messenger can produce nearly all of the characteristic features of the syndrome, researchers report today in Nature.

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October 2010
News

Molecular mechanisms: Calming neurons have specific responses

by  /  26 October 2010

Most inhibitory neurons respond in the same way to a range of visual stimulation, but a subset of them may be tuned in to specific signals, suggest two reports published in September in Neuron.

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Multi-gene deletion creates model for Angelman syndrome

by  /  7 October 2010

A new mouse model of Angelman syndrome that knocks out a large stretch of a key chromosome is clarifying some of the molecular mechanisms underlying the more severe forms of the disorder.

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August 2010
News

Studies explore amygdala problems in fragile X syndrome

by  /  31 August 2010

The amygdala, a brain region that regulates fear and anxiety, shows abnormal neuronal signaling in a mouse model of fragile X syndrome, according to two studies published this summer. These are the first to explore cellular defects in the region in fragile X.

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