Maternal Dyslipidemia, Plasma Branched-Chain Amino Acids, and the Risk of Child Autism Spectrum Disorder: Evidence of Sex Difference

J Autism Dev Disord. 2020 Feb;50(2):540-550. doi: 10.1007/s10803-019-04264-x.

Abstract

In contrast to the well-observed associations between obesity, diabetes, and autism spectrum disorder (ASD), the roles of maternal dyslipidemia and sex disparity in ASD have not been well-studied. We examined the joint associations of maternal plasma cholesterols, branched-chain amino acids (BCAAs) and child sex on child ASD risk. We analyzed data from 756 mother-infant pairs (86 ASD) from the Boston Birth Cohort. Maternal plasma cholesterols and BCAAs were measured in samples collected 24-72 h postpartum. We found that in this urban, low-income prospective birth cohort, low maternal high-density lipoprotein cholesterol (HDL-C), above-median maternal plasma BCAA concentrations, and male sex additively or synergistically increased risk of ASD. Additional studies are necessary to confirm our findings.

Keywords: Autism spectrum disorder; Branched-chain amino acids; Maternal cholesterols; Metabolomics; Pre- and perinatal risk factors; Sex differences.

MeSH terms

  • Amino Acids, Branched-Chain / blood*
  • Autism Spectrum Disorder / blood*
  • Autism Spectrum Disorder / epidemiology
  • Child
  • Cholesterol, HDL / blood
  • Cohort Studies
  • Dyslipidemias / blood*
  • Dyslipidemias / epidemiology
  • Female
  • Follow-Up Studies
  • Humans
  • Infant, Newborn
  • Longitudinal Studies
  • Male
  • Maternal Health / trends*
  • Obesity / blood
  • Obesity / epidemiology
  • Prospective Studies
  • Risk Factors
  • Sex Characteristics*

Substances

  • Amino Acids, Branched-Chain
  • Cholesterol, HDL