Exploring the relationship between the gut microbiome and mental health outcomes in a posttraumatic stress disorder cohort relative to trauma-exposed controls/Experiment 3

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Reviewed Marked as Reviewed by ChiomaBlessing on 2024-3-25

Curated date: 2024/03/07

Curator: Keamy

Revision editor(s): Keamy, ChiomaBlessing

Subjects

Location of subjects
South Africa
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
Major depressive disorder major depression,major depressive disorder,recurrent major depression,single major depressive episode,unipolar depression,Major depressive disorder
Group 0 name Corresponds to the control (unexposed) group for case-control studies
Individuals without MDD diagnoses
Group 1 name Corresponds to the case (exposed) group for case-control studies
Individuals with MDD diagnoses
Group 1 definition Diagnostic criteria applied to define the specific condition / phenotype represented in the case (exposed) group
Individuals diagnosed with Major Depressive Disorder (MDD). The MINI was used to diagnose MDD.
Group 0 sample size Number of subjects in the control (unexposed) group
2
Group 1 sample size Number of subjects in the case (exposed) group
20
Antibiotics exclusion Number of days without antibiotics usage (if applicable) and other antibiotics-related criteria used to exclude participants (if any)
Antibiotic use within 4 weeks before stool sampling.

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

Data transformation Data transformation applied to microbial abundance measurements prior to differential abundance testing (if any).
relative abundances
Statistical test
Linear Regression
Significance threshold p-value or FDR threshold used for differential abundance testing (if any)
0.1
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, body mass index, sex, Confounders controlled for: "gastrointestinal diseases" 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.gastrointestinal diseases, Confounders controlled for: "unidentified bowel diseases" 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.unidentified bowel diseases


Signature 1

Reviewed Marked as Reviewed by ChiomaBlessing on 2024-3-25

Curated date: 2024/03/07

Curator: Keamy

Revision editor(s): Keamy, ChiomaBlessing

Source: Figure 2

Description: GLM box plot showing relative abundance levels (clr-transformed and filtered) of the phylum Bacteroidetes in individuals who have MDD compared to those who did not have MDD

Abundance in Group 1: increased abundance in Individuals with MDD diagnoses

NCBI Quality ControlLinks
Bacteroidota

Revision editor(s): Keamy, ChiomaBlessing