Alterations in composition and diversity of the intestinal microbiota in patients with diarrhea-predominant irritable bowel syndrome
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Quality control
- Retracted paper
- Contamination issues suspected
- Batch effect issues suspected
- Uncontrolled confounding suspected
- Results are suspect (various reasons)
- Tags applied
Experiment 1
Curated date: 2021/01/10
Curator: WikiWorks
Revision editor(s): LGeistlinger, Rimsha, WikiWorks, Victoria
Subjects
- Location of subjects
- United States of America
- Host species Species from which microbiome was sampled. Contact us to have more species added.
- Homo sapiens
- Body site Anatomical site where microbial samples were extracted from according to the Uber Anatomy Ontology
- Feces Cow dung,Cow pat,Droppings,Dung,Excrement,Excreta,Faeces,Fecal material,Fecal matter,Fewmet,Frass,Guano,Matières fécales@fr,Merde@fr,Ordure,Partie de la merde@fr,Piece of shit,Porción de mierda@es,Portion of dung,Portion of excrement,Portion of faeces,Portion of fecal material,Portion of fecal matter,Portion of feces,Portion of guano,Portion of scat,Portionem cacas,Scat,Spoor,Spraint,Stool,Teil der fäkalien@de,Feces,feces
- Condition The experimental condition / phenotype studied according to the Experimental Factor Ontology
- Irritable bowel syndrome [X]Psychogenic IBS,Adaptive colitis,Colitides, Mucous,Colitis, Mucous,Colon spasm,Colon, Irritable,Functional bowel disease,IBD,IBS,IBS - Irritable bowel syndrome,IC - Irritable colon,Irritable bowel,Irritable bowel - IBS,irritable bowel syndrome,Irritable Bowel Syndromes,Irritable Colon,irritable colon,Irritable colon (disorder),Irritable colon - Irritable bowel syndrome,Irritable colon syndrome,Membranous colitis,Mucous Colitides,Mucous colitis,mucus colitis,Nervous colitis,Psychogenic IBS,psychogenic IBS,Spastic colitis,Spastic colon,spastic colon,Syndrome, Irritable Bowel,Syndromes, Irritable Bowel,Irritable bowel syndrome
- Group 0 name Corresponds to the control (unexposed) group for case-control studies
- healthy controls
- Group 1 name Corresponds to the case (exposed) group for case-control studies
- diarrhea-predominant irritable bowel syndrome
- Group 1 definition Diagnostic criteria applied to define the specific condition / phenotype represented in the case (exposed) group
- Diarrhea-Predominant irritable bowel syndrome
- Group 0 sample size Number of subjects in the control (unexposed) group
- 23
- Group 1 sample size Number of subjects in the case (exposed) group
- 23
- Antibiotics exclusion Number of days without antibiotics usage (if applicable) and other antibiotics-related criteria used to exclude participants (if any)
- 2 months
Lab analysis
- Sequencing type
- 16S
- 16S variable region One or more hypervariable region(s) of the bacterial 16S gene
- V1-V3
- Sequencing platform Manufacturer and experimental platform used for quantifying microbial abundance
- Roche454
Statistical Analysis
- Data transformation Data transformation applied to microbial abundance measurements prior to differential abundance testing (if any).
- raw counts
- Statistical test
- T-Test
- Significance threshold p-value or FDR threshold used for differential abundance testing (if any)
- 0.05
- MHT correction Have statistical tests be corrected for multiple hypothesis testing (MHT)?
- No
Alpha Diversity
- Richness Number of species
- decreased
Signature 1
Source: Table 2
Description: Bacterial taxa that differ between D-IBS patients and healthy controls
Abundance in Group 1: increased abundance in diarrhea-predominant irritable bowel syndrome
NCBI | Quality Control | Links |
---|---|---|
Enterobacterales | ||
Enterobacteriaceae |
Revision editor(s): WikiWorks
Signature 2
Source: Table 2
Description: Bacterial taxa that differ between D-IBS patients and healthy controls
Abundance in Group 1: decreased abundance in diarrhea-predominant irritable bowel syndrome
NCBI | Quality Control | Links |
---|---|---|
Faecalibacterium |
Revision editor(s): WikiWorks
Experiment 2
Subjects
Lab analysis
- 16S variable region One or more hypervariable region(s) of the bacterial 16S gene
- V6
Statistical Analysis
- Data transformation Data transformation applied to microbial abundance measurements prior to differential abundance testing (if any).
- Not specified
Alpha Diversity
- Richness Number of species
- unchanged
Signature 1
Source: Table 2
Description: Bacterial taxa that differ between D-IBS patients and healthy controls
Abundance in Group 1: increased abundance in diarrhea-predominant irritable bowel syndrome
NCBI | Quality Control | Links |
---|---|---|
Pseudomonadota | ||
Gammaproteobacteria | ||
Enterobacteriaceae | ||
Ethanoligenens |
Revision editor(s): WikiWorks