Genetic variants that affect mitochondria, the organelles that power cells, may increase the risk of autism.

Some variants in mitochondrial DNA are more common than others in autism, cognitive therapy reduces anxiety for people on the spectrum, and maternal fever in the third trimester is tied to autism risk.

Children with autism are genetically more similar to one another than to a group of unaffected siblings.

A Tampa clinic goes rogue with fecal transplants, autism’s genetic ancestry traces to our deep past, and the U.S. Supreme Court revives the travel ban.

Many children with autism have gastrointestinal problems, seizures and sleep disorders. A new study suggests that these seemingly disparate conditions are interconnected and may lead to the children’s behavioral issues.

Children whose older sisters are on the spectrum are at higher risk for autism than are those with affected older brothers, a new study suggests. Younger brothers of children with autism are at greater risk than younger sisters.

Researchers have established a set of commercially available cell lines that can help gauge the quality of tests for Rett syndrome, they reported in the March issue of the Journal of Molecular Diagnostics.

An artificial-intelligence algorithm designed to analyze behavior has learned to recognize six genetic disorders associated with autism, according to a report published 11 February in Molecular Autism. The algorithm could be used to hone the search for autism’s genetic underpinnings.

In families with a history of autism, the affected children are seven times more likely to also have epilepsy than their unaffected siblings, according to a study published 1 December in Molecular Autism. The results suggest that epilepsy and autism share some risk factors.

About one in ten women who have a child with autism have immune molecules in their bloodstream that react with proteins in the brain, according to a study published 20 August in Molecular Psychiatry.