People with autism have more brain-related health problems, such as headaches and epilepsy, than typical people do.

Mutations in the autism gene NLGN3 may alter the gut nervous system of mice.

Many scientists have pointed out possible errors of analysis and interpretation in a high-profile study that suggested microbes can ease autism-like behaviors in mice.

Mice colonized with gut microbes from some autistic boys show behaviors like those of the boys.

Autistic children are more likely to have gastrointestinal problems than typical children are, but no more so than children with other brain conditions.

The largest-yet attempt to characterize the global diversity of the human microbiome — the population of microbes that live in our bodies — has found 4,930 species, 77 percent of which were previously unknown.

Consuming Lactobacillus reuteri, a gut microbe found in yogurt and breast milk, may enhance social interactions in three mouse models of autism.