Site-Specific Gut Microbial Signatures in Non-Celiac Gluten Sensitivity

Gut microbiota in non-celiac gluten sensitivity (NCGS) has been poorly studied for its involvement in the disorder and site specificity. We investigated small intestinal, large intestinal and stool microbiota profiles in patients with NCGS and highly overlapping disorder irritable bowel syndrome (IB...

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Main Authors: Kunal Dixit, Anam Ahmed, Alka Singh, Mitali Inamdar, Sonal Chavan, Rahul Bodkhe, Wajiha Mehtab, Ashish Chauhan, Sunil D. Saroj, Vineet Ahuja, Yogesh Shouche, Dhiraj Dhotre, Govind Makharia
Format: Article
Language:English
Published: Taylor & Francis Group 2024-12-01
Series:Gut Microbes Reports
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Online Access:https://www.tandfonline.com/doi/10.1080/29933935.2024.2438621
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author Kunal Dixit
Anam Ahmed
Alka Singh
Mitali Inamdar
Sonal Chavan
Rahul Bodkhe
Wajiha Mehtab
Ashish Chauhan
Sunil D. Saroj
Vineet Ahuja
Yogesh Shouche
Dhiraj Dhotre
Govind Makharia
author_facet Kunal Dixit
Anam Ahmed
Alka Singh
Mitali Inamdar
Sonal Chavan
Rahul Bodkhe
Wajiha Mehtab
Ashish Chauhan
Sunil D. Saroj
Vineet Ahuja
Yogesh Shouche
Dhiraj Dhotre
Govind Makharia
author_sort Kunal Dixit
collection DOAJ
description Gut microbiota in non-celiac gluten sensitivity (NCGS) has been poorly studied for its involvement in the disorder and site specificity. We investigated small intestinal, large intestinal and stool microbiota profiles in patients with NCGS and highly overlapping disorder irritable bowel syndrome (IBS) as well as effect of gluten-free diet (GFD) on microbiota in patients with NCGS. True NCGS patients were recruited based on serological response for anti-gliadin antibodies, 6-week gluten free diet (GFD) and symptom recurrence with gluten-rechallenge. Analyses using 16S rRNA gene amplicon and shotgun sequencing revealed community differences in core microbiome and diversity measures across sample types indicating dysbiosis mainly in mucosa-associated small intestinal microbiome of NCGS patients. Genera Elusimicrobiaum, Succinivibrio, Bacillus and Alcaligenes appeared as signatures in small intestine and stool in NCGS patients. Presence of differential taxa co-occurring at sampling sites, enabled recognition of site-specific microbial signatures. GFD led to a shift in mucosa-associated small intestinal core microbiome. Metagenome analysis revealed subtle differences in pathways for amino acid biosynthesis including L-ornithine. Mucosa-associated small intestine microbial structure was quite distinct in patients with NCGS in comparison to that with IBS.
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spelling doaj-art-fbf7f90c184b4c8ea2af20956482ec7f2025-08-20T02:26:41ZengTaylor & Francis GroupGut Microbes Reports2993-39352024-12-011110.1080/29933935.2024.2438621Site-Specific Gut Microbial Signatures in Non-Celiac Gluten SensitivityKunal Dixit0Anam Ahmed1Alka Singh2Mitali Inamdar3Sonal Chavan4Rahul Bodkhe5Wajiha Mehtab6Ashish Chauhan7Sunil D. Saroj8Vineet Ahuja9Yogesh Shouche10Dhiraj Dhotre11Govind Makharia12Symbiosis School of Biological Sciences, Symbiosis International (Deemed University), Pune, IndiaDepartment of Gastroenterology and Human Nutrition, All India Institute of Medical Sciences, New Delhi, IndiaDepartment of Gastroenterology and Human Nutrition, All India Institute of Medical Sciences, New Delhi, IndiaNational Centre for Cell Science, Pune, IndiaNational Centre for Cell Science, Pune, IndiaDepartment of Integrative Biology, University of California, Berkeley, USADepartment of Home Science, University of Delhi, New Delhi, IndiaDepartment of Gastroenterology and Human Nutrition, All India Institute of Medical Sciences, New Delhi, IndiaSymbiosis School of Biological Sciences, Symbiosis International (Deemed University), Pune, IndiaDepartment of Gastroenterology and Human Nutrition, All India Institute of Medical Sciences, New Delhi, IndiaNational Centre for Cell Science, Pune, IndiaNational Centre for Cell Science, Pune, IndiaDepartment of Gastroenterology and Human Nutrition, All India Institute of Medical Sciences, New Delhi, IndiaGut microbiota in non-celiac gluten sensitivity (NCGS) has been poorly studied for its involvement in the disorder and site specificity. We investigated small intestinal, large intestinal and stool microbiota profiles in patients with NCGS and highly overlapping disorder irritable bowel syndrome (IBS) as well as effect of gluten-free diet (GFD) on microbiota in patients with NCGS. True NCGS patients were recruited based on serological response for anti-gliadin antibodies, 6-week gluten free diet (GFD) and symptom recurrence with gluten-rechallenge. Analyses using 16S rRNA gene amplicon and shotgun sequencing revealed community differences in core microbiome and diversity measures across sample types indicating dysbiosis mainly in mucosa-associated small intestinal microbiome of NCGS patients. Genera Elusimicrobiaum, Succinivibrio, Bacillus and Alcaligenes appeared as signatures in small intestine and stool in NCGS patients. Presence of differential taxa co-occurring at sampling sites, enabled recognition of site-specific microbial signatures. GFD led to a shift in mucosa-associated small intestinal core microbiome. Metagenome analysis revealed subtle differences in pathways for amino acid biosynthesis including L-ornithine. Mucosa-associated small intestine microbial structure was quite distinct in patients with NCGS in comparison to that with IBS.https://www.tandfonline.com/doi/10.1080/29933935.2024.2438621Gluten-free dietirritable bowel syndrome16S rRNA amplicon libraryshotgun metagenomesmall intestinehuman microbiome
spellingShingle Kunal Dixit
Anam Ahmed
Alka Singh
Mitali Inamdar
Sonal Chavan
Rahul Bodkhe
Wajiha Mehtab
Ashish Chauhan
Sunil D. Saroj
Vineet Ahuja
Yogesh Shouche
Dhiraj Dhotre
Govind Makharia
Site-Specific Gut Microbial Signatures in Non-Celiac Gluten Sensitivity
Gut Microbes Reports
Gluten-free diet
irritable bowel syndrome
16S rRNA amplicon library
shotgun metagenome
small intestine
human microbiome
title Site-Specific Gut Microbial Signatures in Non-Celiac Gluten Sensitivity
title_full Site-Specific Gut Microbial Signatures in Non-Celiac Gluten Sensitivity
title_fullStr Site-Specific Gut Microbial Signatures in Non-Celiac Gluten Sensitivity
title_full_unstemmed Site-Specific Gut Microbial Signatures in Non-Celiac Gluten Sensitivity
title_short Site-Specific Gut Microbial Signatures in Non-Celiac Gluten Sensitivity
title_sort site specific gut microbial signatures in non celiac gluten sensitivity
topic Gluten-free diet
irritable bowel syndrome
16S rRNA amplicon library
shotgun metagenome
small intestine
human microbiome
url https://www.tandfonline.com/doi/10.1080/29933935.2024.2438621
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