Alterations of gastric mucosal microbiota across different stomach microhabitats in a cohort of 276 patients with gastric cancer/Experiment 3
From BugSigDB
Reviewed Marked as Reviewed by Claregrieve1 on 2022/09/27
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
- tumoral 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
- 229
- 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
Reviewed Marked as Reviewed by Claregrieve1 on 2022/09/27
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
Reviewed Marked as Reviewed by Claregrieve1 on 2022/09/27
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
