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Investigating the Association Between Gut Bacteria and Childhood Neuropsychiatric Disorders

Background: The etiology of autism spectrum disorder (ASD) remains unclear. However, it’s believed to be a multifactorial condition. Several studies suggest the involvement of gut and oral microbiome in the predisposition of ASD symptoms. Understanding the pathophysiology could aid in developing bet...

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Main Author: Abdo, Maha
Format: Thesis
Published: AUC Knowledge Fountain 2024
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access_status_str Open Access
author Abdo, Maha
author_browse Abdo, Maha
author_facet Abdo, Maha
author_sort Abdo, Maha
collection Thesis
description Background: The etiology of autism spectrum disorder (ASD) remains unclear. However, it’s believed to be a multifactorial condition. Several studies suggest the involvement of gut and oral microbiome in the predisposition of ASD symptoms. Understanding the pathophysiology could aid in developing better treatment strategies that improve the quality of life of ASD individuals and their caregivers. Aim: The current study aims at characterizing the gut and oral microbiome composition of ASD children compared to their healthy siblings and mothers as control groups. Methods: Stool and saliva samples were collected from fourteen families at Ain Shams University Hospital, Outpatient Clinic. The 16S rRNA V3-V4 hypervariable regions of the bacterial DNA extracted from the samples were sequenced and then analyzed using QIIME2 and R studio. Results: Several bacterial taxa belonging to phylum Actinobacteriota were differentially abundant in the study groups’ saliva and stool samples. Additionally, a reduction in butyrate-producing bacteria was seen in ASD stool samples. Conclusion: The current study provides evidence of altered microbiota composition in ASD children. However, future large-scale studies would give a better picture of the observed dysbiosis and possible ways to correct it.
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institution American University in Cairo (Egypt)
last_indexed 2026-06-10T12:35:54.296Z
license_str Not specified — see source repository
provenance_str_mv Harvested via OAI-PMH from AUC Knowledge Fountain — bepress
publishDate 2024
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spelling oai:fount.aucegypt.edu:etds-3228 Investigating the Association Between Gut Bacteria and Childhood Neuropsychiatric Disorders Abdo, Maha Background: The etiology of autism spectrum disorder (ASD) remains unclear. However, it’s believed to be a multifactorial condition. Several studies suggest the involvement of gut and oral microbiome in the predisposition of ASD symptoms. Understanding the pathophysiology could aid in developing better treatment strategies that improve the quality of life of ASD individuals and their caregivers. Aim: The current study aims at characterizing the gut and oral microbiome composition of ASD children compared to their healthy siblings and mothers as control groups. Methods: Stool and saliva samples were collected from fourteen families at Ain Shams University Hospital, Outpatient Clinic. The 16S rRNA V3-V4 hypervariable regions of the bacterial DNA extracted from the samples were sequenced and then analyzed using QIIME2 and R studio. Results: Several bacterial taxa belonging to phylum Actinobacteriota were differentially abundant in the study groups’ saliva and stool samples. Additionally, a reduction in butyrate-producing bacteria was seen in ASD stool samples. Conclusion: The current study provides evidence of altered microbiota composition in ASD children. However, future large-scale studies would give a better picture of the observed dysbiosis and possible ways to correct it. 2024-01-31T08:00:00Z thesis application/pdf https://fount.aucegypt.edu/etds/2189 https://fount.aucegypt.edu/context/etds/article/3228/viewcontent/Maha_El_Saeed_Abdo_Thesis.pdf Theses and Dissertations AUC Knowledge Fountain Autism Spectrum Disorder oral microbiome gut microbiome dysbiosis Development Studies Neurosciences Psychiatric and Mental Health
spellingShingle Autism Spectrum Disorder
oral microbiome
gut microbiome
dysbiosis
Development Studies
Neurosciences
Psychiatric and Mental Health
Abdo, Maha
Investigating the Association Between Gut Bacteria and Childhood Neuropsychiatric Disorders
title Investigating the Association Between Gut Bacteria and Childhood Neuropsychiatric Disorders
title_full Investigating the Association Between Gut Bacteria and Childhood Neuropsychiatric Disorders
title_fullStr Investigating the Association Between Gut Bacteria and Childhood Neuropsychiatric Disorders
title_full_unstemmed Investigating the Association Between Gut Bacteria and Childhood Neuropsychiatric Disorders
title_short Investigating the Association Between Gut Bacteria and Childhood Neuropsychiatric Disorders
title_sort investigating the association between gut bacteria and childhood neuropsychiatric disorders
topic Autism Spectrum Disorder
oral microbiome
gut microbiome
dysbiosis
Development Studies
Neurosciences
Psychiatric and Mental Health
url https://fount.aucegypt.edu/etds/2189
https://fount.aucegypt.edu/context/etds/article/3228/viewcontent/Maha_El_Saeed_Abdo_Thesis.pdf
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