Differences in the gut microbiome by physical activity and BMI among colorectal cancer patients/Experiment 2

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Reviewed Marked as Reviewed by Atrayees on 2023-6-1

Curated date: 2023/03/14

Curator: Deacme

Revision editor(s): Atrayees, Deacme, ChiomaBlessing

Subjects

Location of subjects
Germany
United States of America
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
Body mass index BMI,Quetelet's Index,Body mass index,body mass index
Group 0 name Corresponds to the control (unexposed) group for case-control studies
Normal weight patients
Group 1 name Corresponds to the case (exposed) group for case-control studies
Overweight patients
Group 1 definition Diagnostic criteria applied to define the specific condition / phenotype represented in the case (exposed) group
Patient with a BMI greater than or equal to 25 kg/m2 but not greater than 30 kg/m2.
Group 0 sample size Number of subjects in the control (unexposed) group
59
Group 1 sample size Number of subjects in the case (exposed) group
76
Antibiotics exclusion Number of days without antibiotics usage (if applicable) and other antibiotics-related criteria used to exclude participants (if any)
4 weeks

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
Wald Test
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
sex, Confounders controlled for: "study site" 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.study site, Confounders controlled for: "neoadjuvant treatment" 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.neoadjuvant treatment, Confounders controlled for: "stage at diagnosis" 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.stage at diagnosis

Alpha Diversity

Shannon Estimator of species richness and species evenness: more weight on species richness
decreased
Simpson Estimator of species richness and species evenness: more weight on species evenness
decreased
Richness Number of species
decreased

Signature 2

Reviewed Marked as Reviewed by Atrayees on 2023-6-1

Curated date: 2023/03/16

Curator: Deacme

Revision editor(s): Atrayees, Deacme, Aiyshaaaa, ChiomaBlessing

Source: Table 2

Description: Differential abundance (mean normalized counts) at genus level in overweight group VS normal weight group

Abundance in Group 1: decreased abundance in Overweight patients

NCBI Quality ControlLinks
Olsenella
unclassified Mogibacterium
Anaerococcus
Eubacterium
Clostridium
Succiniclasticum
Succinivibrio

Revision editor(s): Atrayees, Deacme, Aiyshaaaa, ChiomaBlessing