16S gut community of the Cameron County Hispanic Cohort

Study information

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

study design

cross-sectional observational, not case-control

Citation

PMID PubMed identifier for scientific articles.

25763184

DOI Digital object identifier for electronic documents.

10.1186/s40168-015-0072-y

URI

Authors

Ross MC, Muzny DM, McCormick JB, Gibbs RA, Fisher-Hoch SP, Petrosino JF

Journal

Microbiome

Year

2015

BACKGROUND: Obesity and type 2 diabetes (T2D) are major public health concerns worldwide, and their prevalence has only increased in recent years. Mexican Americans are disproportionately afflicted by obesity and T2D, and rates are even higher in the United States-Mexico border region. To determine the factors associated with the increased risk of T2D, obesity, and other diseases in this population, the Cameron County Hispanic Cohort was established in 2004. RESULTS: In this study, we characterized the 16S gut community of a subset of 63 subjects from this unique cohort. We found that these communities, when compared to Human Microbiome Project subjects, exhibit community shifts often observed in obese and T2D individuals in published studies. We also examined microbial network relationships between operational taxonomic units (OTUs) in the Cameron County Hispanic Cohort (CCHC) and three additional datasets. We identified a group of seven genera that form a tightly interconnected network present in all four tested datasets, dominated by butyrate producers, which are often increased in obese individuals while being depleted in T2D patients. CONCLUSIONS: Through a combination of increased disease prevalence and relatively high gut microbial homogeneity in the subset of CCHC members we examined, we believe that the CCHC may represent an ideal community to dissect mechanisms underlying the role of the gut microbiome in human health and disease. The lack of CCHC subject gut community segregation based on all tested metadata suggests that the community structure we observe in the CCHC likely occurs early in life, and endures. This persistent 'disease'-related gut microbial community in CCHC subjects may enhance existing genetic or lifestyle predispositions to the prevalent diseases of the CCHC, leading to increased attack rates of obesity, T2D, non-alcoholic fatty liver disease, and others.

Experiment 1

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

Curated date: 2021/01/10

Curator: WikiWorks

Revision editor(s): WikiWorks, Victoria

Subjects

Location of subjects: United States-Mexico Border

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: Obesity Adiposis,Adiposity,Obese,Obese (finding),obesity,Obesity (disorder),Obesity [Ambiguous],obesity disease,obesity disorder,Obesity NOS,Obesity, unspecified,Overweight and obesity,Obesity

Group 0 name Corresponds to the control (unexposed) group for case-control studies: Human Microbiome Project samples

Group 1 name Corresponds to the case (exposed) group for case-control studies: Cameron County Hispanic Cohort samples

Group 0 sample size Number of subjects in the control (unexposed) group: 213

Group 1 sample size Number of subjects in the case (exposed) group: 63

Lab analysis

Sequencing type: 16S

16S variable region One or more hypervariable region(s) of the bacterial 16S gene: V1-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): 0.02

MHT correction Have statistical tests be corrected for multiple hypothesis testing (MHT)?: Yes

Signature 1

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

Curated date: 2021/01/10

Curator: Marianthi Thomatos

Revision editor(s): WikiWorks

Source: Table 1

Description: Relative abundance comparision between Cameron County Hispanic Cohort (CCHC) and Human microbiome project (HMP) subject stool samples

Abundance in Group 1: increased abundance in Cameron County Hispanic Cohort samples

NCBI	Quality Control	Links
Bacillota
Actinomycetota
Lachnospiraceae
Veillonellaceae
Coriobacteriaceae
Oscillospiraceae
Prevotellaceae
Prevotella
Collinsella
Roseburia
Streptococcus
Dialister

Revision editor(s): WikiWorks

Signature 2

Edit History Delete

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

Curated date: 2021/01/10

Curator: Marianthi Thomatos

Revision editor(s): WikiWorks

Source: Table 1

Description: Relative abundance comparision between Cameron County Hispanic Cohort (CCHC) and Human microbiome project (HMP) subject stool samples

Abundance in Group 1: decreased abundance in Cameron County Hispanic Cohort samples

NCBI	Quality Control	Links
Bacteroidota
Bacteroidaceae
Rikenellaceae
Bacteroides
Parabacteroides
Alistipes

Revision editor(s): WikiWorks