The gut microbiota-SCFA-inflammation axis in patients with AECOPD
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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.
Authors
Zhu H, Wu C, Wu H, Liu J, Ye W, Zhao T, Li Z
Journal
PloS one
Year
2025
OBJECTIVES: The aim of the study was to explore the alteration of microbiota and SCFA in gut and inflammation in acute exacerbation chronic obstructive pulmonary disease (AECOPD) patients, and to test the hypothesis that a disorder of gut microbiota will lead to the alteration of SCFA, which will aggravate inflammation in AECOPD patients. METHODS AND RESULTS: 24 patients with AECOPD and 18 healthy volunteers were included in the study. Gut microbiota were analyzed by 16S rDNA and serum was used to detect levels of inflammatory factors by ELISA. Fatty acid concentrations were determined in lumen via gas chromatography-mass spectrometry. The richness and diversity of gut microbiota were decreased in AECOPD patients. β-diversity analysis revealed differences between AECOPD patients and healthy controls. p_Bacteroidetes, g_Paraprevotella, g_Ruminococcus2, g_Parasutterella, o_Rhodospirillales, and g_Romboutsia in the healthy controls and p_Firmicutes, o_Actinomycetales, f_Actinomycetadeae, g_Actinomyces, g_Mogibacterium, f_Veillonellaceae, f_Enterococcaceae, and g_Enterococcus in AECOPD patients were the most abundant microbiota. SCFA levels were decreased in patients with AECOPD. In addition, the results demonstrated that except for a reduction in IL-6, there was no change in inflammatory markers in AECOPD patients. CONCLUSION: In AECOPD patients, the gut microbiota-SCFA-inflammation axis is augmented, with decreased diversity and abundance of gut microbiota, leading to a reduction in SCFA and an imbalance of inflammation.
Experiment 1
Reviewed Marked as Reviewed by Svetlana up on 2025-3-27
Subjects
- Location of subjects
- China
- 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
- Chronic obstructive pulmonary disease Airflow Obstruction, Chronic,Airflow Obstructions, Chronic,CAFL - Chronic airflow limitation,CAL - Chronic airflow limitation,CAO - Chronic airflow obstruction,Chronic airflow limitation,Chronic Airflow Obstruction,Chronic Airflow Obstructions,Chronic airway disease,Chronic airway obstruction,chronic airway obstruction, NEC in ICD9CM_2006,chronic airway obstruction, not elsewhere classified,Chronic irreversible airway obstruction,CHRONIC OBSTRUCTIVE AIRWAY DIS,chronic obstructive airway disease,Chronic Obstructive Airways Disease,chronic obstructive airways disease,chronic obstructive airways disease NOS,chronic obstructive airways disease NOS (disorder),CHRONIC OBSTRUCTIVE LUNG DIS,Chronic Obstructive Lung Disease,chronic obstructive lung disease,chronic obstructive lung disease (disorder),chronic obstructive lung disease [Ambiguous],Chronic obstructive lung disease, NEC,Chronic obstructive lung disease, NOS,CHRONIC OBSTRUCTIVE PULM DIS,chronic obstructive pulmonary disease,Chronic Obstructive Pulmonary Disease (COPD),chronic obstructive pulmonary disease (COPD),chronic obstructive pulmonary disease and allied conditions,Chronic obstructive pulmonary disease finding,Chronic obstructive pulmonary disease finding (finding),Chronic obstructive pulmonary disease NOS,CHRONIC OBSTRUCTIVE PULMONARY DISEASE, (COPD),chronic obstructive pulmonary disease, (COPD),COAD,COAD - Chronic obstructive airways disease,COLD,cold,COLD (chronic obstructive lung disease),cold (chronic obstructive lung disease),COLD - Chronic obstructive lung disease,COPD,COPD - Chronic obstructive pulmonary disease,COPD NOS,COPD, CHRONIC OBSTRUCTIVE PULMONARY DISEASE,COPD, chronic obstructive pulmonary disease,DISEASE (COPD), CHRONIC OBSTRUCTIVE,disease (COPD), chronic obstructive,Dops,obstructive lung disease, chronic,OBSTRUCTIVE PULMONARY DISEASE (COPD), CHRONIC,obstructive pulmonary disease (COPD), chronic,PULM DIS CHRONIC OBSTRUCTIVE,PULMONARY DISEASE (COPD), CHRONIC OBSTRUCTIVE,pulmonary disease (COPD), chronic obstructive,Pulmonary Disease, Chronic Obstructive,Chronic obstructive pulmonary disease
- Group 0 name Corresponds to the control (unexposed) group for case-control studies
- Healthy Control Group (HC)
- Group 1 name Corresponds to the case (exposed) group for case-control studies
- AECOPD Group (Acute Exacerbation of Chronic Obstructive Pulmonary Disease)
- Group 1 definition Diagnostic criteria applied to define the specific condition / phenotype represented in the case (exposed) group
- Patients diagnosed with Acute Exacerbation of Chronic Obstructive Pulmonary Disease (AECOPD). It is a sudden worsening of COPD symptoms, including increased breathlessness, cough, mucus production, and inflammation.
- Group 0 sample size Number of subjects in the control (unexposed) group
- 18
- Group 1 sample size Number of subjects in the case (exposed) group
- 24
- Antibiotics exclusion Number of days without antibiotics usage (if applicable) and other antibiotics-related criteria used to exclude participants (if any)
- 2weeks
Lab analysis
- Sequencing type
- 16S
- 16S variable region One or more hypervariable region(s) of the bacterial 16S gene
- V3-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
- Metastats
- 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)?
- No
Alpha Diversity
- Shannon Estimator of species richness and species evenness: more weight on species richness
- decreased
- Chao1 Abundance-based estimator of species richness
- decreased
- Simpson Estimator of species richness and species evenness: more weight on species evenness
- increased
- Richness Number of species
- decreased
Signature 1
Reviewed Marked as Reviewed by Svetlana up on 2025-3-27
Source: Fig S2-S7
Description: The metastat analysis of taxa was demonstrated between two groups in Phylum,Class,Order,Family,Genus and Species level
Abundance in Group 1: increased abundance in AECOPD Group (Acute Exacerbation of Chronic Obstructive Pulmonary Disease)
| NCBI | Quality Control | Links |
|---|---|---|
| Actinomyces | ||
| Actinomycetaceae | ||
| Actinomycetales | ||
| Bacilli | ||
| Bacillota | ||
| Cetobacterium | ||
| Enterococcaceae | ||
| Enterococcus | ||
| Lactobacillales | ||
| Micrococcaceae | ||
| Negativicutes | ||
| Rothia |
Revision editor(s): Aiyshaaaa
Signature 2
Reviewed Marked as Reviewed by Svetlana up on 2025-3-27
Source: Fig S2-S7
Description: The metastat analysis of taxa was demonstrated between two groups in Phylum,Class,Order,Family,Genus and Species level
Abundance in Group 1: decreased abundance in AECOPD Group (Acute Exacerbation of Chronic Obstructive Pulmonary Disease)
Revision editor(s): Aiyshaaaa
Experiment 2
Reviewed Marked as Reviewed by Svetlana up on 2025-3-27
Differences from previous experiment shown
Subjects
Lab analysis
Statistical Analysis
- Statistical test
- LEfSe
- LDA Score above Threshold for the linear discriminant analysis (LDA) score for studies using the popular LEfSe tool
- 2
Alpha Diversity
- Shannon Estimator of species richness and species evenness: more weight on species richness
- decreased
- Chao1 Abundance-based estimator of species richness
- decreased
- Simpson Estimator of species richness and species evenness: more weight on species evenness
- increased
- Richness Number of species
- decreased
Signature 1
Reviewed Marked as Reviewed by Svetlana up on 2025-3-27
Source: Fig 5
Description: LEfSe was used to analyze the differential bacterial abundance between two groups in Phylum,Class,Order,Family and Genus level
Abundance in Group 1: increased abundance in AECOPD Group (Acute Exacerbation of Chronic Obstructive Pulmonary Disease)
| NCBI | Quality Control | Links |
|---|---|---|
| Actinomyces | ||
| Actinomycetaceae | ||
| Actinomycetales | ||
| Bacillota | ||
| Enterococcaceae | ||
| Enterococcus | ||
| Mogibacterium | ||
| Veillonellaceae |
Revision editor(s): Aiyshaaaa
Signature 2
Reviewed Marked as Reviewed by Svetlana up on 2025-3-27
Source: Fig 5
Description: LEfSe was used to analyze the differential bacterial abundance between two groups in Phylum,Class,Order,Family and Genus level
Abundance in Group 1: decreased abundance in AECOPD Group (Acute Exacerbation of Chronic Obstructive Pulmonary Disease)
Revision editor(s): Aiyshaaaa
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