Ion channels

Recent articles

Illustration of ketamine blocking open ion channels in active NMDA receptors, quieting the cells and disrupting downstream signaling involved in depression.

Ketamine targets lateral habenula, setting off cascade of antidepressant effects

The drug’s affinity for overactive cells in the “anti-reward” region may help explain its rapid and long-lasting results.

By Olivia Gieger
4 September 2024 | 6 min read
Photograph of Theanne Griffith sitting at a table with her hands interlocked over a stack of books, with one that she has published at the very top.

Crafting tales of science with Theanne Griffith

A lifelong passion for writing helped the neuroscientist land a book deal and publish 15 chapter books for early readers, covering topics ranging from what the cerebellum does to how a cake bakes.

By Angie Voyles Askham
26 August 2024 | 8 min read
Research image of two fluorescent-stained organoids.

CRISPR gives autism-linked genes a boost, rescues functioning

A modified form of the gene-editing tool increases the expression of CHD8 and SCN2A, showing potential for autism therapies.

By Giorgia Guglielmi
23 May 2024 | 5 min read
Research image of microglia in mice.

Microglial overreaction to atypical neurons may drive autism

In mice and organoids lacking a neuronal protein, microglia prune synapses to excess.

By Holly Barker
21 March 2024 | 5 min read
Black-and-white photograph of William Catterall in a lab.

The legacy of William Catterall, ‘father of ion channels’

Catterall, who characterized the structure, function and regulation of sodium and calcium channels crucial for neuronal excitability, died last month at the age of 77.

By Calli McMurray
12 March 2024 | 7 min read
A research image of neuronal dendrites in mice.

Top autism-linked genes join forces to shape synaptic plasticity

The protein products of ANK2 and SCN2A interact to regulate dendritic excitability.

By Holly Barker
29 January 2024 | 5 min read
Figure shows cultured human kidney cells and cultured rat cortical neurons responding to light exposure.

Unconventional optogenetics technique spurs long-lasting changes in neuronal activity

Conventional optogenetic manipulations to excite or inhibit neurons stop when the light switches off. A new approach makes the changes last.

By Peter Hess
9 January 2023 | 4 min read
Laura Cancedda in Iama's lab.

Building a better drug

Iama Therapeutics is hoping a new class of molecule will prove successful against an old target in autism.

By Alla Katsnelson
6 October 2022 | 12 min read

Mini biopsies point to source of lethal seizures in model mice

Interneurons that fail to propagate electrical signals in mice that model Dravet syndrome may cause the animals, like people with the autism-linked condition, to die suddenly.

By Angie Voyles Askham
26 April 2022 | 5 min read
Micrograph showing missing sodium ion channels in cerebral cortex of mice with two mutated copies of SCN2A gene.

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

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

By Peter Hess
27 August 2021 | 4 min read

Explore more from The Transmitter

Photograph of a chickadee.

Gazing at a location from afar activates place cells in chickadees

The results help explain how the hippocampus can recall information about a place without an animal physically revisiting it.

By Marta Hill
13 June 2025 | 6 min read
An opaque cube is repeated multiple times to create the appearance of overlapping cubes.

Sounding the alarm on pseudoreplication: Q&A with Constantinos Eleftheriou and Peter Kind

Most studies of neurological disorders in mice erroneously treat multiple samples from a single animal as independent replicates, according to a new analysis. But scientists and journals can take steps to curb this practice.

By Lauren Schenkman
12 June 2025 | 6 min read
Crumpled pieces of paper form an X.

Psychedelics meta-analysis retracted after authors request ‘significant changes’

While working on a similar analysis last year, an independent researcher spotted inconsistencies in the now-retracted paper.

By Marta Hill
11 June 2025 | 2 min read