People with autism who have rare, damaging mutations tend to have low scores on intelligence tests.
Rare or common, inherited or spontaneous, mutations form the core of autism risk.
People with attention deficit hyperactivity disorder may carry certain rare, harmful mutations in many of the same genes as people with autism.
A reanalysis of data from more than 2 million children in Sweden suggests inherited genetic factors account for 83 percent of autism risk.
People who have a mutation linked to autism plus a second genetic glitch tend to have more severe symptoms than those with the mutation alone.
Mutations in the gene PTEN that are tied to autism may be less harmful than those linked to a syndrome characterized by benign tumors.
A new database details the genetic mutations associated with Phelan-McDermid syndrome, along with the behavioral outcomes of people with those mutations.
Delivering a fragment of the Rett syndrome gene MECP2 into neurons eases features of the syndrome in a mouse model.
Drugs that block certain brain enzymes could help treat two conditions associated with autism.
Hurricane Maria pummeled Cayo Santiago, home to more than 1,500 rhesus macaques, including some used for autism research.
Children with autism may have an excess of spontaneous mutations in DNA that controls the expression of autism genes.
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