Laboratory Medicine ›› 2021, Vol. 36 ›› Issue (2): 153-161.DOI: 10.3969/j.issn.1673-8640.2021.02.007

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Analysis on changes of gut microbiota in children with autism spectrum disorder based on high-throughput sequencing

ZENG Peipei1, ZENG Ting1, DENG Liangqiong1, GUO Hao2, FENG Yushan1, HUANG Liping1, LI Honghui1()   

  1. 1. Liuzhou Maternal and Child Health Care Hospital,Liuzhou 545001,Guangxi,China
    2. Beijing QuantiHealth Technology Co. Ltd.,Beijing 100070,China
  • Received:2020-05-21 Online:2021-02-28 Published:2021-02-28
  • Contact: LI Honghui,E-mail:lzfyebzx@126.com.

Abstract:

Objective To investigate the changes of gut microbiota in children with autism spectrum disorders(ASD). Methods A total of 35 children with ASD were enrolled into ASD group,and 35 healthy children were assigned to healthy control group. Genomic DNA was extracted from fecal samples,and Illumina sequencing platform was used for sequencing analysis to determine the characteristics of gut microbiota. Results There was difference in gut microbiota between ASD and healthy control groups. At the phylum level,there was no significant difference in the relative abundance of the Firmicutes,Bacteroidetes,Proteobacteria or ActinobacteriaP>0.05). There was a significant difference in the structure of Candidatus Saccharibacteria between the 2 groups(P=0.01),but the relative abundance in the structure of gut microbiota was very low. At the genus level,there were significant differences in the relative abundance of Subdoligranulum,Holdemania,Candidatus Saccharibacteria noname,Prevotella,Burkholderiales noname,Gordonibacter,Alistipes,Solobacterium,Parasutterella,Anaerotruncus,Aggregatibacter,Comamonas,Gemella and Granulicatella between the 2 groups(P<0.05). Further analysis of gut microbiota showed that the relative abundance of Alistipes onderdonkii,Alistipes putredinis,Bacteroides finegoldii,Alistipes shahii,Streptococcus vestibularis,Holdemania filiformis,Bacteroides massiliensis,Burkholderiales bacterium-1-1-47,Megamonas funiformis,Parabacteroides merdae,Ruminococcus flavefaciens,Lachnospiraceae bacterium_3_1_57FAA_CT1 and Parasutterella excrementihominis in ASD group were higher than those in healthy control group,but the relative abundance of Granulicatella adiacens,Fusobacterium mortiferum,Solobacterium moorei,Eubacterium rectale,Candidate division_TM7_single_cell_isolate_TM7c and Gemella morbillorum in the ASD froup were lower than those in the healthy control group(P<0.05). Conclusion Intestinal microecological disorders exist in ASD children,but ASD children do not have a specific intestinal microbial composition.

Key words: Gut microbiota, High-throughput sequencing, Autism spectrum disorder

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