A remote Colombian town is home to the world’s largest cluster of people with fragile X syndrome. Scientists are learning from them — and trying to help.
Genetic variants across the genome contribute to about 8 percent of the risk for certain developmental conditions — much more than previously thought.
Over the past year, HNRNPU, a gene well known for its link to epilepsy, has emerged as a new autism candidate.
Children born to women who had diabetes or high blood pressure while pregnant may be at an increased risk of autism.
About 10 percent of people with a large mutation in chromosome 22 have autism, attention deficit hyperactivity disorder or intellectual disability.
Autism and intelligence share genetic variants, researchers grow Neanderthal mini-brains and see overlap with autism, and maternal diabetes is an autism risk factor.
Harmful mutations in a gene called NAA15 may lead to autism, intellectual disability and delayed speech and motor function.
Mutations in certain genes contribute specifically to autism, and others only to developmental delay.