Abstract Objective To investigate the composition of gut microbiota and its correlation with the severity of behavior symptoms in children with autism spectrum disorder (ASD). Methods A total of 30 children with ASD were enrolled as the ASD group, and 20 healthy children matched for age and sex were enrolled as the healthy control group. Related clinical data were analyzed. The V3-V4 hypervariable regions of the bacterial 16S rRNA gene in fecal samples were sequenced. The severity of behavior symptoms in children with ASD was assessed using the autism behavior checklist. The Spearman's correlation analysis was used to investigate the correlation between gut microbiota and the severity of behavior symptoms in children with ASD. Results There was a significant difference in the composition of gut microbiota between the two groups. Compared with the healthy control group, the ASD group had significant reductions in Shannon index and Shannoneven index (P < 0.05), as well as a significant reduction in the percentage of Firmicutes and a significant increase in the percentage of Acidobacteria in feces (P < 0.05). In the ASD group, the dominant bacteria were Megamonas, Megasphaera, and Barnesiella, while in the healthy control group, the dominant bacteria were Eubacterium_rectale_group, Ezakiella, and Streptococcus. In the children with ASD, the abundance of Megamonas was positively correlated with the scores of health/physical/behavior and language communication (P < 0.05). Conclusions The development of ASD and the severity of behavior symptoms are closely associated with the composition of gut microbiota.
HAO Rui-Hao,ZHENG Peng-Yuan,LIU Si-Meng et al. Correlation between gut microbiota and behavior symptoms in children with autism spectrum disorder[J]. CJCP, 2019, 21(7): 663-669.
HAO Rui-Hao,ZHENG Peng-Yuan,LIU Si-Meng et al. Correlation between gut microbiota and behavior symptoms in children with autism spectrum disorder[J]. CJCP, 2019, 21(7): 663-669.
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