Gut Microbiota Differs in Composition and Functionality Between Children With Type 1 Diabetes and MODY2 and Healthy Control Subjects: A Case-Control Study/Experiment 2

Reviewed Marked as Reviewed by Shaimaa Elsafoury on 2021/02/09

Curated date: 2021/01/10

Curator: WikiWorks

Revision editor(s): WikiWorks, Atrayees, ChiomaBlessing

Subjects

Location of subjects: Spain

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: Type I diabetes mellitus Autoimmune Diabete,Autoimmune Diabetes,Brittle Diabetes Mellitus,Diabete, Autoimmune,diabetes mellitis type 1,diabetes mellitis type I,DIABETES MELLITUS TYPE 01,Diabetes mellitus type 1,Diabetes mellitus type 1 (disorder),Diabetes mellitus type I,Diabetes mellitus type I [insulin dependent type] [IDDM] [juvenile type], not stated as uncontrolled, with unspecified complication,Diabetes mellitus type I [insulin dependent type] [IDDM] [juvenile type], uncontrolled, with unspecified complication,Diabetes Mellitus, Brittle,Diabetes Mellitus, Insulin Dependent,Diabetes Mellitus, Insulin-Dependent,Diabetes Mellitus, Juvenile Onset,Diabetes Mellitus, Juvenile-Onset,Diabetes Mellitus, Ketosis Prone,Diabetes Mellitus, Ketosis-Prone,Diabetes Mellitus, Sudden Onset,Diabetes Mellitus, Sudden-Onset,Diabetes Mellitus, Type 1,Diabetes Mellitus, Type I,Diabetes, Autoimmune,DMI UNSPF NT ST UNCNTRLD,DMI UNSPF UNCNTRLD,IDDM,IDDM - Insulin-dependent diabetes mellitus,immune mediated diabetes,Insulin Dependent Diabetes,insulin dependent diabetes,Insulin dependent diabetes mellitus,insulin dependent diabetes mellitus,Insulin-Dependent Diabetes Mellitus,insulin-dependent diabetes mellitus,Juvenile Diabetes,juvenile diabetes,Juvenile onset diabetes mellitus,Juvenile-Onset Diabetes Mellitus,Ketosis-Prone Diabetes Mellitus,Mellitus, Sudden-Onset Diabetes,Sudden-Onset Diabetes Mellitus,Type 1 Diabetes,type 1 diabetes,Type 1 Diabetes Mellitus,type 1 diabetes mellitus,Type I Diabetes,type I diabetes,type I diabetes mellitus,Type I diabetes mellitus

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: Type I Diabetics and maturity-onset diabetes of the young 2 (MODY2)

Group 1 definition Diagnostic criteria applied to define the specific condition / phenotype represented in the case (exposed) group: type 1 diabetes was diagnosed according to the criteria of the American Diabetes Association and the positivity of at least two persistent, confirmed anti-islet autoantibodies (anti-insulin autoantibodies, GAD autoantibodies, or tyrosine phosphatase autoantibodies). MODY2 children were diagnosed by suggestive clinical history, negative anti-islet autoantibodies, and positive genetic testing. Healthy control subjects were children with negative anti-islet autoantibodies,

Group 0 sample size Number of subjects in the control (unexposed) group: 13

Group 1 sample size Number of subjects in the case (exposed) group: 30

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: V2-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).: relative abundances

Statistical test: Mann-Whitney (Wilcoxon)

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

Matched on Factors on which subjects have been matched on in a case-control study: age, body mass index, breastfeeding duration, delivery procedure, race, sex