Frontiers in Neuroscience
Amino acid profiles and clinical phenotypes in young children with autism spectrum disorder
Introduction In 394 children with autism spectrum disorder (ASD), we investigated the association between plasma amino acid (AA) concentrations and clinical phenotypes. Methods Multivariable logistic regression models were used to evaluate the associations between 22 AAs and clinical features, reporting odds ratios. Results The median age at diagnosis was 3.5 years (interquartile range: 2.8–4.6 years) for boys and 3.1 years (interquartile range: 2.3–3.8 years) for girls; 81.5% of the participants were boys. A 25-un …