Genes

A new analysis challenges the idea that mutations in the sperm of older fathers lead to higher rates of autism among their children.

Problems with protein-filled parcels called exosomes may contribute to Rett syndrome, a condition related to autism.

The loss of 21 genes on chromosome 3 may substantially raise the risk of autism.

A drug that treats tumors and epilepsy in people with tuberous sclerosis complex does not boost their intelligence or ease autism traits.

Mutations in an autism gene called ANK2 may alter brain wiring by causing the growth of excess neuronal connections.

A new technique enables scientists to isolate, and chart gene expression in, tens of thousands of cells at once.

Children with autism who carry mutations in the chromosomal region 16p11.2 or the gene CHD8 — two of the leading risk factors for autism — show distinct patterns of chemical tags on their DNA.

A novel approach to microscopy reveals the sequences and spatial arrangement of DNA within cells.