In Reply Carbillon et al suggested that antiphospholipid antibodies (aPLs) in the mother and/or child might confound our findings from the CHARGE (Childhood Autism Risks from Genetics and Environment) case-control study published in JAMA Pediatrics that preeclampsia, particularly severe disease with placental insufficiency, was associated with autism spectrum disorder and developmental delay.1 We hypothesized a role for suboptimal placentation to explain our findings. Poor placentation resulting from defective endovascular decidual trophoblastic invasion is a central mechanism in mothers with antiphospholipid syndrome (APS).
Walker CK, Ashwood P, Hertz-Picciotto I. Preeclampsia, Placental Insufficiency, Autism, and Antiphospholipid Antibodies—Reply. JAMA Pediatr. 2015;169(6):606-607. doi:10.1001/jamapediatrics.2015.0345