Imbalance in the Gut Microbiota of Children With Autism Spectrum Disorders

BackgroundAutism spectrum disorder (ASD) are complex behavioral changes manifesting early in childhood, which impacts how an individual perceives and socializes with others. The study aims to assess the disparities in gut microbiota (GM) amongst healthy controls and children with ASD.MethodsThe stud...

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Main Authors: Hongfang Ding, Xinhao Yi, Xiaohua Zhang, Hui Wang, Hui Liu, Wei-Wei Mou
Format: Article
Language:English
Published: Frontiers Media S.A. 2021-11-01
Series:Frontiers in Cellular and Infection Microbiology
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fcimb.2021.572752/full
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author Hongfang Ding
Xinhao Yi
Xiaohua Zhang
Hui Wang
Hui Liu
Wei-Wei Mou
author_facet Hongfang Ding
Xinhao Yi
Xiaohua Zhang
Hui Wang
Hui Liu
Wei-Wei Mou
author_sort Hongfang Ding
collection DOAJ
description BackgroundAutism spectrum disorder (ASD) are complex behavioral changes manifesting early in childhood, which impacts how an individual perceives and socializes with others. The study aims to assess the disparities in gut microbiota (GM) amongst healthy controls and children with ASD.MethodsThe study was performed on 25 children with ASD and 20 healthy children. Autistic symptoms were diagnosed and assessed with the Diagnostic and Statistical Manual for Mental Disorders and the Autism Treatment Evaluation Checklist (ATEC). Gastrointestinal (GI) symptoms were assessed with a GI Severity Index (GSI) questionnaire. The fecal bacteria composition was investigated by the high−throughput sequencing of the V3–V4 region of the 16S rRNA gene. The alpha diversity was estimated using the Shannon, Chao, and ACE indexes. The unweighted UniFrac analysis and the PCA plots were used to represent the beta diversity. LDA and LEfSe were used to assess the effect sizes of each abundant differential taxon.ResultsChildren with high GSI scores had much higher ATEC Total scores than those with lower GSI-scores. GI symptoms were strongly associated with symptoms of ASD. There was no difference in Chao, ACE, and Shannon indexes between ASD patients and healthy controls. Both groups showed a significant microbiota structure clustering in the plotted PCAs and significant differences in its composition at the family, order, genus, and phyla levels. There were also noteworthy overall relative differences in Actinobacteria and Firmicutes between both groups.ConclusionsThis study shows the relationship between the clinical manifestations of Autistic symptoms and GI symptoms. ASD patients have dysbiosis of gut microbiota, which may be related to the onset of ASD. These findings may be beneficial for developing ASD symptoms by changing gut microbiota.
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spelling doaj.art-8f5b5a2a428443938c6e83ebd9bbf9362022-12-21T19:11:50ZengFrontiers Media S.A.Frontiers in Cellular and Infection Microbiology2235-29882021-11-011110.3389/fcimb.2021.572752572752Imbalance in the Gut Microbiota of Children With Autism Spectrum DisordersHongfang Ding0Xinhao Yi1Xiaohua Zhang2Hui Wang3Hui Liu4Wei-Wei Mou5Department of Pediatrics, Shengli Oil Field Central Hospital, Dongying, ChinaDepartment of Central Laboratory, Shengli Oil Field Central Hospital, Dongying, ChinaDepartment of Pediatrics, Shengli Oil Field Central Hospital, Dongying, ChinaDepartment of Pediatrics, Shengli Oil Field Central Hospital, Dongying, ChinaDepartment of Pediatrics, Shengli Oil Field Central Hospital, Dongying, ChinaDepartment of Pediatrics, Shengli Oil Field Central Hospital, Dongying, ChinaBackgroundAutism spectrum disorder (ASD) are complex behavioral changes manifesting early in childhood, which impacts how an individual perceives and socializes with others. The study aims to assess the disparities in gut microbiota (GM) amongst healthy controls and children with ASD.MethodsThe study was performed on 25 children with ASD and 20 healthy children. Autistic symptoms were diagnosed and assessed with the Diagnostic and Statistical Manual for Mental Disorders and the Autism Treatment Evaluation Checklist (ATEC). Gastrointestinal (GI) symptoms were assessed with a GI Severity Index (GSI) questionnaire. The fecal bacteria composition was investigated by the high−throughput sequencing of the V3–V4 region of the 16S rRNA gene. The alpha diversity was estimated using the Shannon, Chao, and ACE indexes. The unweighted UniFrac analysis and the PCA plots were used to represent the beta diversity. LDA and LEfSe were used to assess the effect sizes of each abundant differential taxon.ResultsChildren with high GSI scores had much higher ATEC Total scores than those with lower GSI-scores. GI symptoms were strongly associated with symptoms of ASD. There was no difference in Chao, ACE, and Shannon indexes between ASD patients and healthy controls. Both groups showed a significant microbiota structure clustering in the plotted PCAs and significant differences in its composition at the family, order, genus, and phyla levels. There were also noteworthy overall relative differences in Actinobacteria and Firmicutes between both groups.ConclusionsThis study shows the relationship between the clinical manifestations of Autistic symptoms and GI symptoms. ASD patients have dysbiosis of gut microbiota, which may be related to the onset of ASD. These findings may be beneficial for developing ASD symptoms by changing gut microbiota.https://www.frontiersin.org/articles/10.3389/fcimb.2021.572752/fullgut microbiotaautism spectrum disorderschildrenhigh−throughput sequencingFirmicutes and Actinobacteria
spellingShingle Hongfang Ding
Xinhao Yi
Xiaohua Zhang
Hui Wang
Hui Liu
Wei-Wei Mou
Imbalance in the Gut Microbiota of Children With Autism Spectrum Disorders
Frontiers in Cellular and Infection Microbiology
gut microbiota
autism spectrum disorders
children
high−throughput sequencing
Firmicutes and Actinobacteria
title Imbalance in the Gut Microbiota of Children With Autism Spectrum Disorders
title_full Imbalance in the Gut Microbiota of Children With Autism Spectrum Disorders
title_fullStr Imbalance in the Gut Microbiota of Children With Autism Spectrum Disorders
title_full_unstemmed Imbalance in the Gut Microbiota of Children With Autism Spectrum Disorders
title_short Imbalance in the Gut Microbiota of Children With Autism Spectrum Disorders
title_sort imbalance in the gut microbiota of children with autism spectrum disorders
topic gut microbiota
autism spectrum disorders
children
high−throughput sequencing
Firmicutes and Actinobacteria
url https://www.frontiersin.org/articles/10.3389/fcimb.2021.572752/full
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