Correlation between body mass index and gut concentrations of Lactobacillus reuteri, Bifidobacterium animalis, Methanobrevibacter smithii and Escherichia coli
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Study information
-
Quality control
- Retracted paper
- Contamination issues suspected
- Batch effect issues suspected
- Uncontrolled confounding suspected
- Results are suspect (various reasons)
- Tags applied
study design
Citation
PMID PubMed identifier for scientific articles.
DOI Digital object identifier for electronic documents.
URI
Authors
Million M, Angelakis E, Maraninchi M, Henry M, Giorgi R, Valero R, Vialettes B, Raoult D
Journal
International journal of obesity (2005)
Year
2013
BACKGROUND: Genus and species level analysis is the best way to characterize alterations in the human gut microbiota that are associated with obesity, because the clustering of obese and lean microbiotas increases with the taxonomic depth of the analysis. Bifidobacterium genus members have been associated with a lean status, whereas different Lactobacillus species are associated both with a lean and an obese status. OBJECTIVES AND METHODS: We analyzed the fecal concentrations of Bacteroidetes, Firmicutes, Methanobrevibacter smithii, the genus Lactobacillus, five other Lactobacillus species previously linked with lean or obese populations, Escherichia coli and Bifidobacterium animalis in 263 individuals, including 134 obese, 38 overweight, 76 lean and 15 anorexic subjects to test for the correlation between bacterial concentration and body mass index (BMI). Of these subjects, 137 were used in our previous study. FINDINGS: Firmicutes were found in >98.5%, Bacteroidetes in 67%, M. smithii in 64%, E. coli in 51%, Lactobacillus species between 17 and 25% and B. animalis in 11% of individuals. The fecal concentration of Lactobacillus reuteri was positively correlated with BMI (coefficient=0.85; 95% confidence interval (CI) 0.12-0.58; P=0.02) in agreement with what was reported for Lactobacillus sakei. As reported, B. animalis (coefficient=-0.84; 95% CI -1.61 to -0.07; P=0.03) and M. smithii (coefficient=-0.43, 95% CI -0.90 to 0.05; P=0.08) were negatively associated with the BMI. Unexpectedly, E. coli was found here for the first time to negatively correlate with the BMI (coefficient=-1.05; 95% CI -1.60 to -0.50; P<0.001). CONCLUSION: Our findings confirm the specificity of the obese microbiota and emphasize the correlation between the concentration of certain Lactobacillus species and obesity.
Experiment 1
Reviewed Marked as Reviewed by Claregrieve1 on 2022/09/1
Subjects
- Location of subjects
- France
- 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
- anorexic, lean, and overweight subjects
- Group 1 name Corresponds to the case (exposed) group for case-control studies
- obese subjects
- Group 1 definition Diagnostic criteria applied to define the specific condition / phenotype represented in the case (exposed) group
- patients who were obese by BMI (BMI>30 kg m−2)
- Group 0 sample size Number of subjects in the control (unexposed) group
- 128
- Group 1 sample size Number of subjects in the case (exposed) group
- 134
- Antibiotics exclusion Number of days without antibiotics usage (if applicable) and other antibiotics-related criteria used to exclude participants (if any)
- 6 months
Lab analysis
- Sequencing type
- WMS
- 16S variable region One or more hypervariable region(s) of the bacterial 16S gene
- Not specified
- Sequencing platform Manufacturer and experimental platform used for quantifying microbial abundance
- RT-qPCR
Statistical Analysis
- Statistical test
- Chi-Square
- 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
Signature 1
Reviewed Marked as Reviewed by Claregrieve1 on 2022/09/1
Curated date: 2021/01/10
Curator: Mst Afroza Parvin
Revision editor(s): Claregrieve1, WikiWorks, Folakunmi
Source: Supplementary Table 1
Description: Differential microbial abundance between the obese group and all the other groups
Abundance in Group 1: decreased abundance in obese subjects
| NCBI | Quality Control | Links |
|---|---|---|
| Bacteroidota |
Revision editor(s): Claregrieve1, WikiWorks, Folakunmi
Experiment 2
Reviewed Marked as Reviewed by Claregrieve1 on 2022/09/1
Differences from previous experiment shown
Subjects
- Group 0 name Corresponds to the control (unexposed) group for case-control studies
- lean and anorexic subjects
- Group 1 name Corresponds to the case (exposed) group for case-control studies
- obese and overweight subjects
- Group 1 definition Diagnostic criteria applied to define the specific condition / phenotype represented in the case (exposed) group
- patients who were overweight or obese by BMI
- Group 0 sample size Number of subjects in the control (unexposed) group
- 91
- Group 1 sample size Number of subjects in the case (exposed) group
- 171
Lab analysis
Statistical Analysis
Signature 1
Reviewed Marked as Reviewed by Claregrieve1 on 2022/09/1
Curated date: 2021/01/10
Curator: Mst Afroza Parvin
Revision editor(s): Claregrieve1, WikiWorks, Folakunmi
Source: Supplementary Table 1
Description: Differential microbial abundance between the obese and overweight group and the lean and anorexic group
Abundance in Group 1: decreased abundance in obese and overweight subjects
| NCBI | Quality Control | Links |
|---|---|---|
| Methanobrevibacter smithii |
Revision editor(s): Claregrieve1, WikiWorks, Folakunmi
Experiment 3
Reviewed Marked as Reviewed by Claregrieve1 on 2022/09/1
Differences from previous experiment shown
Subjects
- Group 0 name Corresponds to the control (unexposed) group for case-control studies
- lean subjects
- Group 1 name Corresponds to the case (exposed) group for case-control studies
- obese subjects
- Group 1 definition Diagnostic criteria applied to define the specific condition / phenotype represented in the case (exposed) group
- obese patients defined by BMI (BMI>30 kg m−2)
- Group 0 sample size Number of subjects in the control (unexposed) group
- 64
- Group 1 sample size Number of subjects in the case (exposed) group
- 108
Lab analysis
Statistical Analysis
Signature 1
Reviewed Marked as Reviewed by Claregrieve1 on 2022/09/1
Curated date: 2021/01/10
Curator: Mst Afroza Parvin
Revision editor(s): Claregrieve1, WikiWorks, Folakunmi
Source: Supplementary Table 1
Description: Differential microbial abundance between obese and lean subjects (species level)
Abundance in Group 1: decreased abundance in obese subjects
| NCBI | Quality Control | Links |
|---|---|---|
| Bifidobacterium animalis |
Revision editor(s): Claregrieve1, WikiWorks, Folakunmi
Signature 2
Reviewed Marked as Reviewed by Folakunmi on 2024-1-29
Source: Supplementary Table 1
Description: Differential microbial abundance between obese and lean subjects
Abundance in Group 1: increased abundance in obese subjects
| NCBI | Quality Control | Links |
|---|---|---|
| Limosilactobacillus reuteri |
Revision editor(s): Claregrieve1
Experiment 4
Reviewed Marked as Reviewed by Folakunmi on 2024-1-29
Differences from previous experiment shown
Subjects
- Group 1 name Corresponds to the case (exposed) group for case-control studies
- overweight subjects
- Group 1 definition Diagnostic criteria applied to define the specific condition / phenotype represented in the case (exposed) group
- patients who were overweight by BMI (BMI>25 and <30 kg m−2)
- Group 1 sample size Number of subjects in the case (exposed) group
- 32
Lab analysis
Statistical Analysis
Signature 1
Reviewed Marked as Reviewed by Folakunmi on 2024-1-29
Source: Supplementary Table 1
Description: Differential microbial abundance between overweight and lean subjects
Abundance in Group 1: increased abundance in overweight subjects
| NCBI | Quality Control | Links |
|---|---|---|
| Limosilactobacillus reuteri |
Revision editor(s): Claregrieve1, WikiWorks
Experiment 5
Reviewed Marked as Reviewed by Folakunmi on 2024-1-29
Curated date: 2022/08/09
Curator: Claregrieve1
Revision editor(s): Claregrieve1, WikiWorks, Folakunmi
Differences from previous experiment shown
Subjects
- Group 0 name Corresponds to the control (unexposed) group for case-control studies
- anorexic, lean, and overweight subjects (species level)
- Group 1 name Corresponds to the case (exposed) group for case-control studies
- obese subjects (species level)
- Group 1 definition Diagnostic criteria applied to define the specific condition / phenotype represented in the case (exposed) group
- patients who were obese by BMI (BMI>30 kg m−2)
- Group 0 sample size Number of subjects in the control (unexposed) group
- 111
- Group 1 sample size Number of subjects in the case (exposed) group
- 108
Lab analysis
Statistical Analysis
Signature 1
Reviewed Marked as Reviewed by Folakunmi on 2024-1-29
Source: Supplementary Table 1
Description: Differential microbial abundance between the obese group and all the other groups at the species level
Abundance in Group 1: decreased abundance in obese subjects (species level)
| NCBI | Quality Control | Links |
|---|---|---|
| Bifidobacterium animalis |
Revision editor(s): Claregrieve1, Folakunmi
Experiment 6
Reviewed Marked as Reviewed by Folakunmi on 2024-1-29
Differences from previous experiment shown
Subjects
- Group 0 name Corresponds to the control (unexposed) group for case-control studies
- lean and anorexic subjects
- Group 1 name Corresponds to the case (exposed) group for case-control studies
- obese and overweight subjects
- Group 1 definition Diagnostic criteria applied to define the specific condition / phenotype represented in the case (exposed) group
- patients who were overweight or obese by BMI
- Group 0 sample size Number of subjects in the control (unexposed) group
- 79
- Group 1 sample size Number of subjects in the case (exposed) group
- 140
Lab analysis
Statistical Analysis
Signature 1
Reviewed Marked as Reviewed by Folakunmi on 2024-1-29
Source: Supplementary Table 1
Description: Differential microbial abundance between the obese and overweight group and the lean and anorexic group at species level
Abundance in Group 1: increased abundance in obese and overweight subjects
| NCBI | Quality Control | Links |
|---|---|---|
| Limosilactobacillus reuteri |
Revision editor(s): Folakunmi
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