The main outcomes and measures of the study were absolute risk (cumulative incidence) and the hazard ratio (HR) of autism spectrum disorder and childhood autism in children after exposure to valproate in pregnancy. The conclusion was that maternal use of valproate during pregnancy was associated with a significantly increased risk of autism spectrum disorder and childhood autism in the offspring, even after adjusting for maternal epilepsy.(1) For women of childbearing potential who use antiepileptic medications, these findings must be balanced against the treatment benefits for women who require valproate for epilepsy control.Higher Blood Levels of Omega-3s Linked to Lower Mortality Risk High plasma levels of long-chain omega-3 fatty acids are associated with reduced mortality, especially cardiovascular mortality.(6) A total of 2,700 older U.S. adults without heart disease underwent serum measurements of omega-3 fatty acids and then were followed for about 15 years. During that time, there were 1,625 deaths. In adjusted analyses, participants with the highest baseline levels of omega-3s had a 27% reduction in total mortality risk, relative to those with the lowest levels. A decrease in cardiovascular mortality, particularly arrhythmic cardiac mortality, was responsible for most of the risk reduction.
Use of Anti-Epileptic Drug during Pregnancy Associated with Increased Risk of Autism Maternal use of valproate, a drug used for the treatment of epilepsy and other neuropsychological disorders, during pregnancy was associated with a significantly increased risk of autism in offspring, according to a study in the April 24 issue of JAMA.(1,2) Antiepileptic drug exposure during pregnancy has been associated with an increased risk for congenital malformations and delayed cognitive development in the offspring, but not much is known about the risk of other serious neuropsychiatric disorders.(3) Genes play a significant role in the risk of autism, and disease-related genes may be identified in up to 25% of children with autism.(4) However, a variety of environmental factors may increase the risk of autism, and prenatal valproate exposure would be a modifiable environmental exposure.(5)