Consuming artificial sweeteners may alter the structure and function of duodenal microbial communities

Summary: Studies using stool samples suggest that non-sugar sweetener (NSS) consumption affects gut microbiome composition. However, stool does not represent the entire gut. We analyzed the duodenal luminal microbiome in subjects consuming non-aspartame non-sugar sweeteners (NANS, N = 35), aspartame...

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Main Authors: Ava Hosseini, Gillian M. Barlow, Gabriela Leite, Mohamad Rashid, Gonzalo Parodi, Jiajing Wang, Walter Morales, Stacy Weitsman, Ali Rezaie, Mark Pimentel, Ruchi Mathur
Format: Article
Language:English
Published: Elsevier 2023-12-01
Series:iScience
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Online Access:http://www.sciencedirect.com/science/article/pii/S258900422302607X
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author Ava Hosseini
Gillian M. Barlow
Gabriela Leite
Mohamad Rashid
Gonzalo Parodi
Jiajing Wang
Walter Morales
Stacy Weitsman
Ali Rezaie
Mark Pimentel
Ruchi Mathur
author_facet Ava Hosseini
Gillian M. Barlow
Gabriela Leite
Mohamad Rashid
Gonzalo Parodi
Jiajing Wang
Walter Morales
Stacy Weitsman
Ali Rezaie
Mark Pimentel
Ruchi Mathur
author_sort Ava Hosseini
collection DOAJ
description Summary: Studies using stool samples suggest that non-sugar sweetener (NSS) consumption affects gut microbiome composition. However, stool does not represent the entire gut. We analyzed the duodenal luminal microbiome in subjects consuming non-aspartame non-sugar sweeteners (NANS, N = 35), aspartame only (ASP, N = 9), and controls (CON, N = 55) and the stool microbiome in a subset (N = 40). Duodenal alpha diversity was decreased in NANS vs. CON. Duodenal relative abundance (RA) of Escherichia, Klebsiella, and Salmonella (all phylum Proteobacteria) was lower in both NANS and ASP vs. CON, whereas stool RA of Escherichia, Klebsiella, and Salmonella was increased in both NANS and ASP vs. CON. Predicted duodenal microbial metabolic pathways altered in NANS vs. CON included polysaccharides biosynthesis and D-galactose degradation, whereas cylindrospermopsin biosynthesis was significantly enriched in ASP vs. CON. These findings suggest that consuming non-sugar sweeteners may significantly alter microbiome composition and function in the metabolically active small bowel, with different alterations seen in stool.
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spelling doaj.art-ddb6401b4b9e4111b4cfc59b337c86c62023-12-17T06:41:06ZengElsevieriScience2589-00422023-12-012612108530Consuming artificial sweeteners may alter the structure and function of duodenal microbial communitiesAva Hosseini0Gillian M. Barlow1Gabriela Leite2Mohamad Rashid3Gonzalo Parodi4Jiajing Wang5Walter Morales6Stacy Weitsman7Ali Rezaie8Mark Pimentel9Ruchi Mathur10Medically Associated Science and Technology (MAST) Program, Cedars-Sinai, Los Angeles, CA, USAMedically Associated Science and Technology (MAST) Program, Cedars-Sinai, Los Angeles, CA, USAMedically Associated Science and Technology (MAST) Program, Cedars-Sinai, Los Angeles, CA, USAMedically Associated Science and Technology (MAST) Program, Cedars-Sinai, Los Angeles, CA, USAMedically Associated Science and Technology (MAST) Program, Cedars-Sinai, Los Angeles, CA, USAMedically Associated Science and Technology (MAST) Program, Cedars-Sinai, Los Angeles, CA, USAMedically Associated Science and Technology (MAST) Program, Cedars-Sinai, Los Angeles, CA, USAMedically Associated Science and Technology (MAST) Program, Cedars-Sinai, Los Angeles, CA, USAMedically Associated Science and Technology (MAST) Program, Cedars-Sinai, Los Angeles, CA, USA; Karsh Division of Gastroenterology and Hepatology, Department of Medicine, Cedars-Sinai, Los Angeles, CA, USAMedically Associated Science and Technology (MAST) Program, Cedars-Sinai, Los Angeles, CA, USA; Karsh Division of Gastroenterology and Hepatology, Department of Medicine, Cedars-Sinai, Los Angeles, CA, USAMedically Associated Science and Technology (MAST) Program, Cedars-Sinai, Los Angeles, CA, USA; Division of Endocrinology, Diabetes, and Metabolism, Department of Medicine, Cedars-Sinai, Los Angeles, CA, USA; Corresponding authorSummary: Studies using stool samples suggest that non-sugar sweetener (NSS) consumption affects gut microbiome composition. However, stool does not represent the entire gut. We analyzed the duodenal luminal microbiome in subjects consuming non-aspartame non-sugar sweeteners (NANS, N = 35), aspartame only (ASP, N = 9), and controls (CON, N = 55) and the stool microbiome in a subset (N = 40). Duodenal alpha diversity was decreased in NANS vs. CON. Duodenal relative abundance (RA) of Escherichia, Klebsiella, and Salmonella (all phylum Proteobacteria) was lower in both NANS and ASP vs. CON, whereas stool RA of Escherichia, Klebsiella, and Salmonella was increased in both NANS and ASP vs. CON. Predicted duodenal microbial metabolic pathways altered in NANS vs. CON included polysaccharides biosynthesis and D-galactose degradation, whereas cylindrospermopsin biosynthesis was significantly enriched in ASP vs. CON. These findings suggest that consuming non-sugar sweeteners may significantly alter microbiome composition and function in the metabolically active small bowel, with different alterations seen in stool.http://www.sciencedirect.com/science/article/pii/S258900422302607XHealth sciencesMicrobiome
spellingShingle Ava Hosseini
Gillian M. Barlow
Gabriela Leite
Mohamad Rashid
Gonzalo Parodi
Jiajing Wang
Walter Morales
Stacy Weitsman
Ali Rezaie
Mark Pimentel
Ruchi Mathur
Consuming artificial sweeteners may alter the structure and function of duodenal microbial communities
iScience
Health sciences
Microbiome
title Consuming artificial sweeteners may alter the structure and function of duodenal microbial communities
title_full Consuming artificial sweeteners may alter the structure and function of duodenal microbial communities
title_fullStr Consuming artificial sweeteners may alter the structure and function of duodenal microbial communities
title_full_unstemmed Consuming artificial sweeteners may alter the structure and function of duodenal microbial communities
title_short Consuming artificial sweeteners may alter the structure and function of duodenal microbial communities
title_sort consuming artificial sweeteners may alter the structure and function of duodenal microbial communities
topic Health sciences
Microbiome
url http://www.sciencedirect.com/science/article/pii/S258900422302607X
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