Patients infected with Mycobacterium africanum versus Mycobacterium tuberculosis possess distinct intestinal microbiota/Experiment 3

From BugSigDB


Needs review

Curated date: 2025/08/02

Curator: Nuerteye

Revision editor(s): Nuerteye

Subjects

Location of subjects
Mali
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
Sputum , Feces Expectoration,Sputum,sputum,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
Pulmonary tuberculosis lung TB,lung tuberculosis,pulmonary TB,pulmonary tuberculosis,Tuberculosis, Pulmonary,Pulmonary tuberculosis
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
Mycobacterium africanum (MAF)
Group 1 definition Diagnostic criteria applied to define the specific condition / phenotype represented in the case (exposed) group
consist of active pulmonary tuberculosis patients defined by positive sputum culture who received anti tuberculosis treatment (ATT) two months after.
Group 0 sample size Number of subjects in the control (unexposed) group
10
Group 1 sample size Number of subjects in the case (exposed) group
20

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

Statistical test
LEfSe
Significance threshold p-value or FDR threshold used for differential abundance testing (if any)
0.05
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

Signature 1

Needs review

Curated date: 2025/08/02

Curator: Nuerteye

Revision editor(s): Nuerteye

Source: Figure 2A-C

Description: Alterations in the composition of the intestinal microbiome of MAF- and MTB-infected patients at the time of diagnosis. a. Relative abundances of the five most prominent phyla are compared between the three groups. b-c. LEfSe analyses were performed to identify differentially abundant families in the two infection groups, MAF and MTB, compared to the healthy participants (b) and between the two infection groups (c). Taxa are filtered for p < 0.05 and linear discriminant analysis (LDA) score > 2.

Abundance in Group 1: increased abundance in Mycobacterium africanum (MAF)

NCBI Quality ControlLinks
Enterobacteriaceae

Revision editor(s): Nuerteye