Female protective effect

Recent articles

Research image highlighting different brain regions.

X marks the spot in search for autism variants

Genetic variants on the X chromosome, including those in the gene DDX53, contribute to autism’s gender imbalance, two new studies suggest.

By Holly Barker
16 January 2025 | 6 min read
Illustration of children looking at a gigantic set of building blocks, some of which display genetic sequences on their surfaces.

Autism is more heritable in boys than in girls

If boys have greater inherited liability for autism, the female protective effect may not fully explain the sex difference in prevalence.

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
Composite research image of organoids at several stages of development.

Genetic background sways effects of autism-linked mutation

Experiments offer clues to why certain mutations are associated with autism in some people and not others.

By Charles Q. Choi
18 May 2023 | 4 min read
Illustration of an X chromosome against a black background.

X-chromosome variants help explain autism’s sex bias

The rare variants are also linked to ADHD and Tourette syndrome, two other conditions that disproportionately affect boys and men.

By Charles Q. Choi
24 October 2022 | 4 min read

Explore more from The Transmitter

Research image of developing axons in the fly brain.

How developing neurons simplify their search for a synaptic mate

Streamlining the problem from 3D to 1D eases the expedition—a strategy the study investigators deployed to rewire an olfactory circuit in flies.

By Calli McMurray
6 June 2025 | 6 min read
Distorted floppy discs.

NIH autism database announcement raises concerns among researchers

The U.S. National Institutes of Health announced a plan to pour $50 million into data science projects intended to investigate the condition’s causes, but the initiative’s short timeline and other atypicalities have prompted questions.

By Angie Voyles Askham
5 June 2025 | 5 min read
Image of alpha-synuclein filaments in the brain.

Large study links autism to Parkinson’s disease

Autistic adults appear to be prone to an early-onset form of Parkinson’s, according to a long-term study that tracked 2.2 million people in Sweden.

By Charles Q. Choi
5 June 2025 | 4 min read