Article Publish Status: FREE
Abstract Title:

Altered Gut Microbiota in Chinese Children With Autism Spectrum Disorders.

Abstract Source:

Front Cell Infect Microbiol. 2019 ;9:40. Epub 2019 Mar 6. PMID: 30895172

Abstract Author(s):

Bingjie Ma, Jingjing Liang, Meixia Dai, Jue Wang, Jingyin Luo, Zheqing Zhang, Jin Jing

Article Affiliation:

Bingjie Ma


The link between gut microbes and autism spectrum disorders (ASD) has been already observed in some studies, but some bacterial families/species were found to be inconsistently up or down regulated. This issue has been rarely explored in the Chinese population. In this study, we assessed whether or not gut microbiota dysbiosis was associated with children with ASD in China. We enrolled 45 children with ASD (6-9 years of age; 39 boys and 6 girls) and 45 sex- and age-matched neurotypical children. Dietary and other socio-demographic information was obtained via questionnaires. We characterized the composition of the fecal microbiota using bacterial 16S ribosomal RNA (16S rRNA) gene sequencing. The ASD group showed less diversity and richness of gut microbiota than the neurotypical group, as estimated by the abundance-based coverage estimator index and the phylogenetic diversity index. The analysis of beta diversity showed an altered microbial community structure in the ASD group. After adjustment for confounders and multiple testing corrections, no significant group difference was found in the relative abundance of microbiota on the level of the phylum. At the family level, children with ASD had a lower relative abundance ofthan the healthy controls. Moreover, a decrease in the relative abundance of genera, andwas observed in ASD group. This study provides further evidence of intestinal microbial dysbiosis in ASD and sheds light on the characteristics of the gut microbiome of autistic children in China.

Study Type : Human Study

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