APOB and autism: Herein we measured blood levels of 7DHC, lathosterol, desmosterol, sitosterol, cholesterol, HDL, ApoA1, and ApoB in individuals with ASD who participated in the Autism Genetic Resource Exchange (AGRE) and assigned age- and sex-specific centiles generated from the population-survey National Health and Nutrition Examination Survey III (NHANES-III) [66] to their cholesterol, HDL, ApoA1, and ApoB levels.