Influence of dietary components on the gut microbiota of middle-aged adults: the gut-Mediterranean connection/Experiment 2

From BugSigDB


Needs review

Curated date: 2025/09/18

Curator: SheikhAlMamun

Revision editor(s): SheikhAlMamun

Subjects

Location of subjects
Canada
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
Group 0 name Corresponds to the control (unexposed) group for case-control studies
(Q1) low level of diet
Group 1 name Corresponds to the case (exposed) group for case-control studies
(Q4) High level of diet
Group 1 definition Diagnostic criteria applied to define the specific condition / phenotype represented in the case (exposed) group
Differential microbial taxa and their association with diet between Q1 vs. Q4 study groups. A Cladogram diagram showing the microbial taxa with significant differences between the study groups. Microbial classification, from the level of phylum to species, is shown from the inside to the outside.
Antibiotics exclusion Number of days without antibiotics usage (if applicable) and other antibiotics-related criteria used to exclude participants (if any)
3 months

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
MaAsLin2
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
LDA Score above Threshold for the linear discriminant analysis (LDA) score for studies using the popular LEfSe tool
3
Confounders controlled for Confounding factors that have been accounted for by stratification or model adjustment
age, Confounders controlled for: "bmi" is not in the list (abnormal glucose tolerance, acetaldehyde, acute graft vs. host disease, acute lymphoblastic leukemia, acute myeloid leukemia, adenoma, age, AIDS, alcohol consumption measurement, alcohol drinking, ...) of allowed values.bmi, sex

Alpha Diversity

Shannon Estimator of species richness and species evenness: more weight on species richness
increased

Signature 1

Needs review

Curated date: 2025/09/18

Curator: SheikhAlMamun

Revision editor(s): SheikhAlMamun

Source: Figure 3B

Description: This field would detail the nature of the signature, for example, which microbial taxa are increased, and under what conditions (e.g., higher adherence to the Mediterranean diet).

Abundance in Group 1: increased abundance in (Q4) High level of diet

NCBI Quality ControlLinks
Coprobacter
Fusobacterium
Prevotella
Turicibacter

Revision editor(s): SheikhAlMamun

Signature 2

Needs review

Curated date: 2025/09/18

Curator: SheikhAlMamun

Revision editor(s): SheikhAlMamun

Source: Figure 3B

Description: This field would detail the nature of the signature, for example, which microbial taxa are decreased and under what conditions (e.g., higher adherence to the Mediterranean diet).

Abundance in Group 1: decreased abundance in (Q4) High level of diet

NCBI Quality ControlLinks
Holdemanella
Clostrdium X1VAClostrdium X1VA
Clostridium X1VBClostridium X1VB
AnaevoraxAnaevorax
ParabacteroidsParabacteroids

Revision editor(s): SheikhAlMamun