Microglia

Research image of a chimeroid.

Brain ‘chimeroids’ reveal person-to-person differences rooted in genetics

These fusions created from multiple donors’ organoids may help scale up comparative brain research.

By Charles Q. Choi
5 July 2024 | 4 min read
Research illustration groups genes by their effects on brain cell types.

Giant analysis reveals how autism-linked genes affect brain cell types

Genes that predispose people to autism account for a large portion of the neuronal and glial cell changes seen in those with the condition.

By Charles Q. Choi
20 June 2024 | 5 min read
Illustration of neurons against a blue background.

Where do cell states end and cell types begin?

High-throughput transcriptomics offers powerful new methods for defining different types of brain cells. But we need to think more explicitly about how we use these data to distinguish a cell’s permanent identity from its transient states.

By Anne E. West
22 April 2024 | 6 min read
Red pencil leans on a stack of white paper

Alzheimer’s scientist to correct two papers because of data inconsistencies

Anonymous commenters raised concerns about the statistical methods that Soyon Hong and her colleagues used in their work.

By Gina Jiménez
8 March 2024 | 4 min read
Research image of microglia in rats.

Temperament is innate but hackable, animal studies suggest

Emotional reactivity and vulnerability to stress are largely inherited in rodents — but can be modified in early life by targeting inflammation-related cells or even just adjusting an animal’s environment.

By Holly Barker
23 January 2024 | 8 min read
A research image of a mouse brain

Immune-activation model mice escape infantile amnesia, retain early memories

Male pups born to mothers treated with immune-stimulating molecules show autism-like behaviors and, unlike wildtype animals, do not lose memories formed during early life.

By Giorgia Guglielmi
11 January 2024 | 5 min read
Research image of various types of cells.
Cell types Microphone

Vast diversity of human brain cell types revealed in trove of new datasets

The collection offers a glimpse into differences in cell composition — across people and brain regions — that may shape neural function.

By Angie Voyles Askham
12 October 2023 | 6 min listen
Research image comparing microglia with serotonin receptors to those without.
Circuits Microphone

Serotonin powers pruning of developing brain circuits in mice

Mice with microglia missing receptors for the neurotransmitter serotonin since birth have too many synapses and show social difficulties in adulthood.

By Katie Moisse
28 June 2023 | 5 min listen
Research image of zebrafish forebrains.

Autism-related genes converge on microglia and dopamine in zebrafish

The findings add to the growing evidence that genes with disparate functions can play similar roles in brain development.

By Peter Hess
12 May 2023 | 4 min read
Methods Microphone

Grafted organoids reveal how microglia adapt to shifting brain environments

The chimeric mouse model could provide a more realistic way to study microglia’s roles in brain conditions such as autism.

By Angie Voyles Askham
11 May 2023 | 5 min listen

Explore more from The Transmitter

Research image of neurons in the fly’s ventral nerve cord.

New connectomes fly beyond the brain

Researchers are mapping the neurons in Drosophila’s ventral nerve cord, where the central nervous system meets the rest of the body.

By Laura Dattaro
26 July 2024 | 7 min read
Illustration of researchers talking to laypeople amidst strands of DNA.

Building an autism research registry: Q&A with Tony Charman

A purpose-built database of participants who have shared genomic and behavioral data could give clinical trials a boost, Charman says.

By Cathleen O’Grady
25 July 2024 | 8 min read

Cerebellar circuit may convert expected pain relief into real thing

The newly identified circuit taps into the brain’s opioid system to provide a top-down form of pain relief.

By Angie Voyles Askham
24 July 2024 | 6 min read