Alterations of gastric mucosal microbiota across different stomach microhabitats in a cohort of 276 patients with gastric cancer
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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
- Stomach Anterior intestine,Gaster,Mesenteron,Stomach chamber,Ventriculus,Stomach,stomach
- Condition The experimental condition / phenotype studied according to the Experimental Factor Ontology
- Gastric cancer Ca body - stomach,ca greater curvature of stomach,Ca lesser curvature - stomach,cancer of stomach,gastric cancer,gastric cancer, intestinal,gastric neoplasm,malignant gastric neoplasm,malignant gastric tumor,malignant neoplasm of body of stomach,malignant neoplasm of lesser curve of stomach,malignant neoplasm of stomach,malignant neoplasm of the stomach,malignant stomach neoplasm,malignant tumor of body of stomach,malignant tumor of greater curve of stomach,malignant tumor of lesser curve of stomach,malignant tumor of stomach,malignant tumor of the stomach,stomach cancer,Gastric cancer
- Group 0 name Corresponds to the control (unexposed) group for case-control studies
- normal tissues
- Group 1 name Corresponds to the case (exposed) group for case-control studies
- peritumoral tissues
- Group 1 definition Diagnostic criteria applied to define the specific condition / phenotype represented in the case (exposed) group
- gastric cancer
- Group 0 sample size Number of subjects in the control (unexposed) group
- 230
- Group 1 sample size Number of subjects in the case (exposed) group
- 247
- Antibiotics exclusion Number of days without antibiotics usage (if applicable) and other antibiotics-related criteria used to exclude participants (if any)
- 1 month
Lab analysis
- Sequencing type
- 16S
- 16S variable region One or more hypervariable region(s) of the bacterial 16S gene
- V3-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)?
- Yes
- Confounders controlled for Confounding factors that have been accounted for by stratification or model adjustment
- age, sex
Alpha Diversity
- Shannon Estimator of species richness and species evenness: more weight on species richness
- decreased
- 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 2a, 2c, 2f
Description: Differentially abundant taxa between peritumoral tissues and normal tissues
Abundance in Group 1: increased abundance in peritumoral tissues
Revision editor(s): WikiWorks, ChiomaBlessing
Signature 2
Source: Figure 2a, 2c, 2f
Description: Differentially abundant taxa between peritumoral tissues and normal tissues
Abundance in Group 1: decreased abundance in peritumoral tissues
Revision editor(s): WikiWorks, ChiomaBlessing
Experiment 2
Subjects
- Group 0 name Corresponds to the control (unexposed) group for case-control studies
- peritumoral tissues
- Group 1 name Corresponds to the case (exposed) group for case-control studies
- tumoral tissues
- Group 0 sample size Number of subjects in the control (unexposed) group
- 247
- Group 1 sample size Number of subjects in the case (exposed) group
- 229
Lab analysis
Statistical Analysis
Alpha Diversity
- Shannon Estimator of species richness and species evenness: more weight on species richness
- increased
- Chao1 Abundance-based estimator of species richness
- decreased
- Simpson Estimator of species richness and species evenness: more weight on species evenness
- increased
- Richness Number of species
- unchanged
Signature 1
Source: Figure 2a, 2c, 2f
Description: Differentially abundant taxa between tumoral tissues and peritumoral tissues
Abundance in Group 1: increased abundance in tumoral tissues
Revision editor(s): WikiWorks, ChiomaBlessing
Signature 2
Source: Figure 2a, 2c, 2f
Description: Differentially abundant taxa between tumoral tissues and peritumoral tissues
Abundance in Group 1: decreased abundance in tumoral tissues
Revision editor(s): WikiWorks, ChiomaBlessing
Experiment 3
Subjects
- Group 0 name Corresponds to the control (unexposed) group for case-control studies
- normal tissues
- Group 0 sample size Number of subjects in the control (unexposed) group
- 230
Lab analysis
Statistical Analysis
Alpha Diversity
- Shannon Estimator of species richness and species evenness: more weight on species richness
- decreased
- 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 2a, 2c, 2f
Description: Differentially abundant taxa between tumoral tissues and normal tissues
Abundance in Group 1: increased abundance in tumoral tissues
Revision editor(s): WikiWorks, ChiomaBlessing
Signature 2
Source: Figure 2a, 2c, 2f
Description: Differentially abundant taxa between tumoral tissues and normal tissues
Abundance in Group 1: decreased abundance in tumoral tissues
NCBI | Quality Control | Links |
---|---|---|
Azotobacter group | ||
Bacteroidaceae | ||
Bacteroides | ||
Bacteroides uniformis | ||
Helicobacter | ||
Helicobacter pylori | ||
Helicobacteraceae | ||
Pseudomonadota | ||
Pseudomonas | ||
Segatella copri | ||
Sphingomonas |
Revision editor(s): WikiWorks, ChiomaBlessing
Experiment 4
Subjects
- Group 0 name Corresponds to the control (unexposed) group for case-control studies
- early stage normal
- Group 1 name Corresponds to the case (exposed) group for case-control studies
- early stage tumor
- Group 0 sample size Number of subjects in the control (unexposed) group
- 112
- Group 1 sample size Number of subjects in the case (exposed) group
- 116
Lab analysis
Statistical Analysis
Alpha Diversity
- Shannon Estimator of species richness and species evenness: more weight on species richness
- unchanged
- Chao1 Abundance-based estimator of species richness
- decreased
- Simpson Estimator of species richness and species evenness: more weight on species evenness
- unchanged
Signature 1
Source: Figure 4k, 4l, 4m, 4n
Description: Early-stage gastric microbiota between normal and tumor samples
Abundance in Group 1: increased abundance in early stage tumor
NCBI | Quality Control | Links |
---|---|---|
Cutibacterium acnes | ||
Streptococcus anginosus |
Revision editor(s): Claregrieve1, WikiWorks
Signature 2
Source: Figure 4k, 4l, 4m, 4n
Description: Early-stage gastric microbiota between normal and tumor samples
Abundance in Group 1: decreased abundance in early stage tumor
NCBI | Quality Control | Links |
---|---|---|
Segatella copri | ||
Sphingomonas yabuuchiae |
Revision editor(s): Claregrieve1, WikiWorks
Experiment 5
Subjects
- Group 1 name Corresponds to the case (exposed) group for case-control studies
- early stage peritumor
- Group 1 sample size Number of subjects in the case (exposed) group
- 118
Lab analysis
Statistical Analysis
Alpha Diversity
- Shannon Estimator of species richness and species evenness: more weight on species richness
- decreased
- Chao1 Abundance-based estimator of species richness
- decreased
- Simpson Estimator of species richness and species evenness: more weight on species evenness
- unchanged
Signature 1
Source: Figure 4k, 4l, 4m, 4n
Description: Early-stage gastric microbiota in normal and peritumor samples
Abundance in Group 1: decreased abundance in early stage peritumor
NCBI | Quality Control | Links |
---|---|---|
Sphingomonas yabuuchiae |
Revision editor(s): Claregrieve1, WikiWorks
Experiment 6
Subjects
- Group 0 name Corresponds to the control (unexposed) group for case-control studies
- late stage normal
- Group 1 name Corresponds to the case (exposed) group for case-control studies
- late stage tumor
- Group 0 sample size Number of subjects in the control (unexposed) group
- 118
- Group 1 sample size Number of subjects in the case (exposed) group
- 113
Lab analysis
Statistical Analysis
Alpha Diversity
- Shannon Estimator of species richness and species evenness: more weight on species richness
- decreased
- Chao1 Abundance-based estimator of species richness
- decreased
- Simpson Estimator of species richness and species evenness: more weight on species evenness
- unchanged
Signature 1
Source: Figure 4k, 4l, 4m, 4n
Description: Late-stage gastric microbiota in normal and tumor samples
Abundance in Group 1: increased abundance in late stage tumor
NCBI | Quality Control | Links |
---|---|---|
Cutibacterium acnes | ||
Streptococcus anginosus |
Revision editor(s): Claregrieve1, WikiWorks
Experiment 8
Subjects
- Group 1 name Corresponds to the case (exposed) group for case-control studies
- late stage peritumor
- Group 1 sample size Number of subjects in the case (exposed) group
- 129
Lab analysis
Statistical Analysis
Alpha Diversity
- Shannon Estimator of species richness and species evenness: more weight on species richness
- decreased
- Chao1 Abundance-based estimator of species richness
- decreased
- Simpson Estimator of species richness and species evenness: more weight on species evenness
- decreased
Signature 1
Source: Figure 4k, 4l, 4m, 4n
Description: late-stage gastric microbiota in normal vs peritumor samples
Abundance in Group 1: decreased abundance in late stage peritumor
NCBI | Quality Control | Links |
---|---|---|
Segatella copri |
Revision editor(s): Claregrieve1, WikiWorks
Experiment 9
Curated date: 2021/01/10
Curator: WikiWorks
Revision editor(s): Claregrieve1, WikiWorks, ChiomaBlessing
Subjects
- Group 0 name Corresponds to the control (unexposed) group for case-control studies
- normal HP-
- Group 1 name Corresponds to the case (exposed) group for case-control studies
- normal HP+
- Group 1 definition Diagnostic criteria applied to define the specific condition / phenotype represented in the case (exposed) group
- normal samples that are H. Pylori positive
- Group 0 sample size Number of subjects in the control (unexposed) group
- 64
- Group 1 sample size Number of subjects in the case (exposed) group
- 166
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
- Shannon Estimator of species richness and species evenness: more weight on species richness
- decreased
- Chao1 Abundance-based estimator of species richness
- decreased
- Simpson Estimator of species richness and species evenness: more weight on species evenness
- decreased
Signature 1
Source: Figure 5l, Supp FigS9
Description: Taxonomic difference of gastric mucosal microbiota between histopathological H. pylori (HP+ and HP-) groups of gastric cancer in normal microhabitat
Abundance in Group 1: increased abundance in normal HP+
Revision editor(s): WikiWorks
Signature 2
Source: Figure 5, Supp FigS9
Description: Taxonomic difference of gastric mucosal microbiota between histopathological H. pylori (HP+ and HP-) groups of gastric cancer in normal microhabitat
Abundance in Group 1: decreased abundance in normal HP+
Revision editor(s): Claregrieve1, WikiWorks
Experiment 10
Curated date: 2021/01/10
Curator: WikiWorks
Revision editor(s): Claregrieve1, WikiWorks, ChiomaBlessing
Subjects
- Group 0 name Corresponds to the control (unexposed) group for case-control studies
- peritumor HP-
- Group 1 name Corresponds to the case (exposed) group for case-control studies
- peritumor HP+
- Group 1 definition Diagnostic criteria applied to define the specific condition / phenotype represented in the case (exposed) group
- peritumor samples that are H. Pylori positive
- Group 0 sample size Number of subjects in the control (unexposed) group
- 65
- Group 1 sample size Number of subjects in the case (exposed) group
- 182
Lab analysis
Statistical Analysis
Alpha Diversity
- Shannon Estimator of species richness and species evenness: more weight on species richness
- decreased
- Chao1 Abundance-based estimator of species richness
- unchanged
- Simpson Estimator of species richness and species evenness: more weight on species evenness
- decreased
Signature 1
Source: Figure S10
Description: Taxonomic difference of gastric mucosal microbiota between histopathological H. pylori (HP+ and HP-) groups of gastric cancer in peritumor microhabitat
Abundance in Group 1: increased abundance in peritumor HP+
Revision editor(s): Claregrieve1, WikiWorks
Signature 2
Source: Figure S10
Description: Taxonomic difference of gastric mucosal microbiota between histopathological H. pylori (HP+ and HP-) groups of gastric cancer in peritumor microhabitat
Abundance in Group 1: decreased abundance in peritumor HP+
Revision editor(s): WikiWorks
Experiment 11
Curated date: 2021/01/10
Curator: WikiWorks
Revision editor(s): Claregrieve1, WikiWorks, ChiomaBlessing
Subjects
- Group 0 name Corresponds to the control (unexposed) group for case-control studies
- tumor HP-
- Group 1 name Corresponds to the case (exposed) group for case-control studies
- tumor HP+
- Group 1 definition Diagnostic criteria applied to define the specific condition / phenotype represented in the case (exposed) group
- tumor samples that are H. Pylori positive
- Group 0 sample size Number of subjects in the control (unexposed) group
- 77
- Group 1 sample size Number of subjects in the case (exposed) group
- 152
Lab analysis
Statistical Analysis
Alpha Diversity
- Shannon Estimator of species richness and species evenness: more weight on species richness
- unchanged
- Chao1 Abundance-based estimator of species richness
- unchanged
- Simpson Estimator of species richness and species evenness: more weight on species evenness
- unchanged
Signature 1
Source: Figure S11
Description: Taxonomic difference of gastric mucosal microbiota between histopathological H. pylori (HP+ and HP-) groups of gastric cancer in tumor microhabitat
Abundance in Group 1: increased abundance in tumor HP+
Revision editor(s): WikiWorks
Signature 2
Source: Figure S11
Description: Taxonomic difference of gastric mucosal microbiota between histopathological H. pylori (HP+ and HP-) groups of gastric cancer in tumor microhabitat
Abundance in Group 1: decreased abundance in tumor HP+
Revision editor(s): WikiWorks