Alteration of the gut microbiota associated with childhood obesity by 16S rRNA gene sequencing
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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
Subjects
- Location of subjects
- China
- 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
- Obesity Adiposis,Adiposity,Obese,Obese (finding),obesity,Obesity (disorder),Obesity [Ambiguous],obesity disease,obesity disorder,Obesity NOS,Obesity, unspecified,Overweight and obesity,Obesity
- Group 0 name Corresponds to the control (unexposed) group for case-control studies
- normal weight children
- Group 1 name Corresponds to the case (exposed) group for case-control studies
- obese children
- Group 1 definition Diagnostic criteria applied to define the specific condition / phenotype represented in the case (exposed) group
- volunteers between the ages of 6-11 years old who were determined to be obese by BMI
- 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
- 28
- Antibiotics exclusion Number of days without antibiotics usage (if applicable) and other antibiotics-related criteria used to exclude participants (if any)
- 4 weeks
Lab analysis
- Sequencing type
- 16S
- 16S variable region One or more hypervariable region(s) of the bacterial 16S gene
- V4
- Sequencing platform Manufacturer and experimental platform used for quantifying microbial abundance
- Illumina
Statistical Analysis
- Data transformation Data transformation applied to microbial abundance measurements prior to differential abundance testing (if any).
- relative abundances
- Statistical test
- Mann-Whitney (Wilcoxon)
- 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
- Chao1 Abundance-based estimator of species richness
- decreased
- Simpson Estimator of species richness and species evenness: more weight on species evenness
- decreased
- Richness Number of species
- decreased
Signature 1
Source: Figure 2, Text
Description: Relative abundance of microbial taxa in normal weight group vs obese group
Abundance in Group 1: increased abundance in obese children
NCBI | Quality Control | Links |
---|---|---|
Faecalibacterium | ||
Haemophilus | ||
Lachnospira | ||
Megamonas | ||
Phascolarctobacterium |
Revision editor(s): Claregrieve1, WikiWorks
Signature 2
Source: Figure 2, Text
Description: Relative abundance of microbial taxa in normal weight group vs obese group
Abundance in Group 1: decreased abundance in obese children
NCBI | Quality Control | Links |
---|---|---|
Dialister | ||
Oscillospira |
Revision editor(s): Claregrieve1, WikiWorks
Experiment 2
Subjects
Lab analysis
Statistical Analysis
- Statistical test
- LEfSe
- LDA Score above Threshold for the linear discriminant analysis (LDA) score for studies using the popular LEfSe tool
- 2
Alpha Diversity
- Chao1 Abundance-based estimator of species richness
- decreased
- Simpson Estimator of species richness and species evenness: more weight on species evenness
- decreased
- Richness Number of species
- decreased
Signature 1
Curated date: 2021/01/10
Curator: Mst Afroza Parvin
Revision editor(s): Lwaldron, Claregrieve1, WikiWorks
Source: Figure 5
Description: Relative abundance of microbial taxa in normal weight group vs obese group
Abundance in Group 1: increased abundance in obese children
Revision editor(s): Lwaldron, Claregrieve1, WikiWorks
Signature 2
Curated date: 2021/01/10
Curator: Mst Afroza Parvin
Revision editor(s): Lwaldron, Claregrieve1, WikiWorks, Merit
Source: Figure 5
Description: Relative abundance of microbial taxa in normal weight group vs obese group
Abundance in Group 1: decreased abundance in obese children
Revision editor(s): Lwaldron, Claregrieve1, WikiWorks, Merit