Toward defining the autoimmune microbiome for type 1 diabetes/Experiment 1

From BugSigDB


Needs review

Curated date: 2025/03/03

Curator: Aleru Divine

Revision editor(s): Aleru Divine

Subjects

Location of subjects
Finland
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
Autoimmune disease Autoimmune disease,autoimmune disease
Group 0 name Corresponds to the control (unexposed) group for case-control studies
Control 1
Group 1 name Corresponds to the case (exposed) group for case-control studies
Case 1
Group 1 definition Diagnostic criteria applied to define the specific condition / phenotype represented in the case (exposed) group
Samples from children diagnosed with autoimmunity, determined by the appearance of at least two autoantibodies at four months after birth.
Group 0 sample size Number of subjects in the control (unexposed) group
3
Group 1 sample size Number of subjects in the case (exposed) group
3

Lab analysis

Sequencing type
16S
16S variable region One or more hypervariable region(s) of the bacterial 16S gene
V3
Sequencing platform Manufacturer and experimental platform used for quantifying microbial abundance
Roche454

Statistical Analysis

Data transformation Data transformation applied to microbial abundance measurements prior to differential abundance testing (if any).
raw counts
Statistical test
Chi-Square
Significance threshold p-value or FDR threshold used for differential abundance testing (if any)
0.01
MHT correction Have statistical tests be corrected for multiple hypothesis testing (MHT)?
Yes
Matched on Factors on which subjects have been matched on in a case-control study
age, Matched on: "HLA-DQ genotype" 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.HLA-DQ genotype

Alpha Diversity

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

Signature 1

Needs review

Curated date: 2025/03/03

Curator: Aleru Divine

Revision editor(s): Aleru Divine

Source: Table 3, 4, S2, S3, S4, S5

Description: Mean percent of total reads for six taxonomic levels identified in the case and control samples.

Abundance in Group 1: increased abundance in Case 1

NCBI Quality ControlLinks
Bacillota
Pseudomonadota
Escherichia coli
Granulicatella para-adiacens
Lacticaseibacillus rhamnosus
Veillonella atypica
Bacilli
Clostridia
Gammaproteobacteria
Eubacteriales
Enterobacterales
Lactobacillales
Carnobacteriaceae
Enterobacteriaceae
Lachnospiraceae
Lactobacillaceae
Streptococcaceae
Veillonellaceae
Enterobacter
Escherichia
Granulicatella
Lactobacillus
Streptococcus
Veillonella

Revision editor(s): Aleru Divine

Signature 2

Needs review

Curated date: 2025/03/03

Curator: Aleru Divine

Revision editor(s): Aleru Divine

Source: Table 3, 4, S2, S3, S4, S5

Description: Mean percent of total reads for six taxonomic levels identified in the case and control samples.

Abundance in Group 1: decreased abundance in Case 1

NCBI Quality ControlLinks
Bacteroidota
Bacteroides caccae
Bacteroides fragilis
Bacteroides thetaiotaomicron
Clostridiaceae bacterium DJF_VR07
Parabacteroides distasonis
Parabacteroides sp. DJF_B086
Mediterraneibacter gnavus
Bacteroidia
Bacteroidales
Bacteroidaceae
Clostridiaceae
Eubacteriaceae
Porphyromonadaceae
Oscillospiraceae
Bacteroides
Clostridium
Parabacteroides

Revision editor(s): Aleru Divine