Mothers' sleep apnea may increase risk of autism-like changes in their male offspring. Sleep apnea in pregnancy may increase the risk for brain and behavioral changes associated with autism, especially in males, according to a study in rats. Source 6e.
Placenta may hold clues for early autism diagnosis and intervention. Researchers have identified a gene linked to fetal brain development and autism. Their work shows that the gene is influenced by the mother's early prenatal vitamins use and placental oxygen levels. Source 8b.