Faecal Microbiota Composition Varies between Patients with Breast Cancer and Healthy Women: A Comparative Case-Control Study/Experiment 2

From BugSigDB


Needs review

Curated date: 2025/07/15

Curator: Ecsharp

Revision editor(s): Ecsharp

Subjects

Location of subjects
France
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
Breast cancer breast cancer,breast tumor,cancer of breast,malignant breast neoplasm,malignant breast tumor,malignant neoplasm of breast,malignant neoplasm of the breast,malignant tumor of breast,malignant tumor of the breast,mammary cancer,mammary neoplasm,mammary tumor,primary breast cancer,Breast cancer
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
BC patients
Group 1 definition Diagnostic criteria applied to define the specific condition / phenotype represented in the case (exposed) group
Early-stage breast cancer (BC) patients, with samples taken before any anticancer therapy was started.
Group 0 sample size Number of subjects in the control (unexposed) group
30
Group 1 sample size Number of subjects in the case (exposed) group
25
Antibiotics exclusion Number of days without antibiotics usage (if applicable) and other antibiotics-related criteria used to exclude participants (if any)
Any antibiotic usage was excluded

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

Statistical test
ANOVA
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
Confounders controlled for Confounding factors that have been accounted for by stratification or model adjustment
age

Alpha Diversity

Shannon Estimator of species richness and species evenness: more weight on species richness
decreased
Chao1 Abundance-based estimator of species richness
unchanged

Signature 1

Needs review

Curated date: 2025/07/15

Curator: Ecsharp

Revision editor(s): Ecsharp

Source: Figure 3b & 3.2.2. V3–V4 16S r RNA Gene Sequencing bullet #2

Description: Barplots of relative abundances at the phylum level for individual data from Figure 3b and text excerpt with MHT adjusted p-values from text.

Abundance in Group 1: increased abundance in BC patients

NCBI Quality ControlLinks
Bacillota

Revision editor(s): Ecsharp

Signature 2

Needs review

Curated date: 2025/07/15

Curator: Ecsharp

Revision editor(s): Ecsharp

Source: Figure 3b & 3.2.2. V3–V4 16S r RNA Gene Sequencing bullet #2

Description: Barplots of relative abundances at the phylum level for individual data from Figure 3b and text excerpt with MHT adjusted p-values from text.

Abundance in Group 1: decreased abundance in BC patients

NCBI Quality ControlLinks
Bacteroidota

Revision editor(s): Ecsharp