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MetabolomicsNon-redundant cardiolipin synthase family proteins shape lipid composition and stress resilience in Bacteroides fragilis

Gut-resident bacteria must withstand membrane-disrupting stresses such as bile acids to persist in the intestinal environment. The Bacteroidota are a dominant phylum of the human gut microbiota. However, the genes responsible for synthesis of membrane lipids in this phylum remain relatively uncha...

2026-10-06 | MTBLS11891 | MetaboLights
TranscriptomicsExpression analysis of Bacteroides fragilis NCTC 9343 delta-ungD1 delta-ungD2 delta-PSH acapsular mutant
Investigation of whole genome gene expression level changes in a Bacteroides fragilis NCTC 9343 delta-ungD1 delta-ungD2 delta-PSH triple mutant, compared to the wild-type strain. The mutations engineered into this strain render it acapsular. The mutants analyzed in this study are further described...
ORGANISM(S): Bacteroides fragilis NCTC 9343 
2008-09-02 | E-GEOD-11268 | biostudies-arrayexpress
MetabolomicsEnterotoxigenic Bacteroides fragilis Exacerbates Alcoholic Liver Disease by Driving Host Metabolic Reprogramming via the Tryptophan-Kynurenine-Retinol Pathway

Background & Aims: Alcoholic liver disease (ALD) is a major public health concern. Gut dysbiosis plays a critical role in its pathogenesis, yet the specific microbial and functional shifts driving ALD progression require further elucidation. This study aims to characterize these alterations a...

2026-01-10 | MTBLS13649 | MetaboLights
MetabolomicsEnterotoxigenic Bacteroides fragilis Exacerbates Alcoholic Liver Disease by Driving Host Metabolic Reprogramming via the Tryptophan-Kynurenine-Retinol Pathway

Background & Aims: Alcoholic liver disease (ALD) is a major public health concern. Gut dysbiosis plays a critical role in its pathogenesis, yet the specific microbial and functional shifts driving ALD progression require further elucidation. This study aims to characterize these alterations a...

2026-01-10 | MTBLS13650 | MetaboLights
MetabolomicsEnterotoxigenic Bacteroides fragilis Exacerbates Alcoholic Liver Disease by Driving Host Metabolic Reprogramming via the Tryptophan-Kynurenine-Retinol Pathway

Background & Aims: Alcoholic liver disease (ALD) is a major public health concern. Gut dysbiosis plays a critical role in its pathogenesis, yet the specific microbial and functional shifts driving ALD progression require further elucidation. This study aims to characterize these alterations a...

2026-02-06 | MTBLS13858 | MetaboLights
TranscriptomicsCis-encoded sRNAs repress expression of polysaccharide utilization loci in Bacteroides fragilis 638R
The phylum Bacteroidetes is a major component of the human gut microbiota which has a broad impact on the development and physiology of its host, and a potential role in a wide range of disease syndromes1-3. The predominance of Bacteroidetes and the genus Bacteroides in the distal gut is due in larg...
ORGANISM(S): Bacteroides fragilis 638R 
2016-07-22 | E-GEOD-73107 | biostudies-arrayexpress
TranscriptomicsRole of the Bacteroides fragilis EcfO regulon during oxidative stress.
Genome expression study of Bacteroides fragilis strain 638R comparing an ecfO null mutant with an empty vector to a reo (anti-ecfO) null mutant containing the ecfO gene on a plasmid under the control of an IPTG inducible promoter. Seven chip study with 8 technical replicates (i.e. Each probe replica...
ORGANISM(S): Bacteroides fragilis 638R 
2013-02-06 | E-GEOD-39231 | biostudies-arrayexpress
TranscriptomicsExpression analysis of Bacteroides fragilis NCTC 9343 delta-ungD1 delta-ungD2
Investigation of whole genome gene expression level changes in a Bacteroides fragilis NCTC 9343 delta-ungD1 delta-ungD2 double mutant compared to the wild-type strain. Keywords: expression analysis A six chip study using total RNA recovered from three separate wild-type cultures of Bacteroides fragi...
ORGANISM(S): Bacteroides fragilis NCTC 9343 
2010-04-15 | E-GEOD-7450 | biostudies-arrayexpress
MetabolomicsEnterotoxigenic Bacteroides fragilis exacerbates alcoholic liver disease progression through kynurenine mediated AMPK signaling inhibition and retinoic acid depletion

Abstract Background & Aims: Alcoholic liver disease (ALD) pathogenesis involves gut microbiota dysbiosis, but specific pathobionts and mechanisms remain unclear. This study investigated the role of patient-derived enterotoxigenic Bacteroides fragilis (ETBF) in ALD progression and its underlyi...

2026-09-07 | MTBLS15572 | MetaboLights
MetabolomicsGut Bacteroides act in a microbial consortium to cause susceptibility to severe malaria

Malaria, caused by Plasmodium species, remains a significant cause of morbidity and mortality globally. Gut bacteria can influence the severity of malaria, but the contribution of specific bacteria to the risk of severe malaria is unknown. Here, multiomics approaches demonstrate specific...

2023-09-13 | MTBLS3449 | MetaboLights
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