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Tag: excitatory signaling

August 2021
Micrograph showing missing sodium ion channels in cerebral cortex of mice with two mutated copies of SCN2A gene.
News

Model mice hint at sodium channel gene’s contribution to autism

by  /  27 August 2021

Altered electrical activity in the neurons of mice with a mutated copy of SCN2A may explain the animals’ autism-like social behaviors.

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Images shows a pyramidal neuron.
News

How mutations in top autism gene could lead to seizures

by  /  5 August 2021

Deleterious mutations in an autism-associated gene can make neurons hyperexcitable, raising the risk of epileptic seizures.

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July 2021
Immature inhibitory cells surround mature neuron.
News

Critical time window flagged for autism gene’s influence

by  /  16 July 2021

A transplant of inhibitory neurons during the second week of life prevents social difficulties and a brain signaling imbalance in mice missing a copy of FOXG1.

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June 2021
Mouse neuron recordings showing different levels of activity before and after an encounter with an unfamiliar mouse.
News

Neural network captures noisy neurons in autism mouse model

by  /  18 June 2021

Mice missing the autism-linked gene SHANK3 use more neurons to engage in social behavior than control mice do, reflecting a more disorganized, less efficient brain signaling network.

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Brain and marijuana leaves
Opinion / Q&A

Q&A with Eric Hollander: Cannabis treatments for autism

by  /  8 June 2021

As cannabis prohibition slowly lifts in the United States, scientists and families in the autism community are increasingly turning to the drug and its constituent compounds to ease autism-related difficulties, including seizures and irritability.

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May 2021
News

Stimulant restores cell signaling, eases behavior issues in animals missing autism gene

by  /  28 May 2021

Worms and zebrafish missing both copies of the gene CHD7 have disrupted cellular signaling, a dearth of inhibitory neurons and behavior changes — all of which are reversed by the stimulant drug ephedrine.

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Visual stimulus of 4 circles with black and white stripes.
News

Visual task flags autistic people who respond to GABA agonists

by  /  14 May 2021

The investigational drug arbaclofen makes autistic people’s brains respond to a visual task more like non-autistic people’s brains do.

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brainstem of rats in red, green and blue highlight higher levels of GABA.
News

GABA agonist rescues auditory hypersensitivity in rats missing autism-linked gene CNTNAP2

by  /  3 May 2021

The investigational drug arbaclofen may right an imbalance between inhibitory and excitatory signaling in the animals’ brains.

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April 2021
Micrograph comparing locus coeruleus of 16p11.2 mutant mice and control mice show less active noradrenergic neurons in mutant mice.
News

Circuit flaw underlies motor learning issues in autism mouse model

by  /  12 April 2021

Mice missing a copy of chromosomal region 16p11.2 are slow to learn motor tasks and have dysfunction in a brain circuit associated with stress and movement, according to a new study. Normalizing this circuit’s activity corrects the learning deficit.

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March 2021
mouse brain neurons highlighted pink and green.
News / Toolbox

New technique tunes in to molecular chatter in neurons

by  /  11 March 2021

Researchers have devised a way to use fluorescent sensors to detect many different signaling molecules in a cell at once.

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