Skip to main content

Spectrum: Autism Research News

Tag: excitatory signaling

May 2021

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.

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

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.

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

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.

Comments
March 2021
mouse brain neurons highlighted pink and green.

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.

Comments
January 2021
neurons in mice

Sensory perception, cell signals disrupted in people and mice missing autism gene

by  /  13 January 2021

People and mice with only one working copy of the autism gene SYNGAP1 may have trouble processing sights and sounds.

Comments
lab mice

Mice with autism-related mutations show brain signaling imbalance

by  /  4 January 2021

Mutations in POGZ, a gene strongly linked to autism, lead to a signaling imbalance in multiple brain regions in mice, according to two new studies.

Comments
November 2020
SYNGAP1 protein between neurons.

Reactions from the 2020 SYNGAP1 Scientific Conference

by  /  25 November 2020

Spectrum is covering the 2020 International SYNGAP1 Scientific Conference, which took place virtually because of the coronavirus pandemic. Here we’re highlighting researchers’ reactions to noteworthy presentations.

Comments
October 2020
neurons in green.

Brain organoids reveal neuronal flaws in syndrome tied to autism

by  /  12 October 2020

Neurons derived from people with 22q11.2 deletion syndrome show deficits in calcium signaling and electrical activity, pointing to possible therapeutic targets.

Comments
September 2020
Brain images showing differences in signaling in autistic and normal brains.

Brain signal imbalance tracks with sex and with camouflaging autism traits

by  /  17 September 2020

Autistic men show a greater imbalance between excitatory and inhibitory signaling in the brain than autistic women do, which could explain sex differences in ‘camouflaging.’

Comments
Neurons in a macaque cortex express parvalbumin in red.

Virus-based method manipulates inhibitory neurons in brains

by  /  9 September 2020

A new viral tool can selectively control different types of neurons that dampen brain activity in rodents, monkeys and people.

Comments