The role of the vaginal microbiome in distinguishing female chronic pelvic pain caused by endometriosis/adenomyosis
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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
Chao X, Liu Y, Fan Q, Shi H, Wang S, Lang J
Journal
Annals of translational medicine
Year
2021
Keywords:
16S rRNA, Chronic pelvic pain (CPP), endometriosis/adenomyosis (EM/AM), function prediction, vaginal microbiome
Background: This study aimed to investigate the specific vaginal microbiome in the differential diagnosis of endometriosis/adenomyosis (EM/AM)-associated chronic pelvic pain (CPP) from other types of CPP, and to explore the role of the vaginal microbiome in the mechanism of EM/AM-associated CPP. Methods: We recruited 37 women with EM/AM-associated CPP, 25 women with chronic pelvic pain syndrome (CPPS) without EM/AM, and 66 women without CPPS into our study. All of the participants were free from human papillomavirus (HPV) infection. Sequencing of barcoded 16S rRNA gene fragments (V4) was used to determine the vaginal microbiome composition on the Illumina HiSeq2500 System. Taxonomic and functional bioinformatics analyses were performed using t-test, linear discriminant analysis effect size (LEfSe), MetaStat, and PICRUSt algorithms. Results: At the species level, EM/AM-associated CPP was found to be associated with a predominance of Clostridium butyricum, Clostridium disporicum, Alloscardovia omnicolens, and Veillonella montpellierensis, and a concomitant paucity of Lactobacillus jensenii, Lactobacillus reuteri, and Lactobacillus iners. When the relative abundance of Clostridium disporicum was over 0.001105% and that of Lactobacillus reuteri was under 0.1911349%, the differential diagnostic sensitivity and specificity were 81.08% and 52.0%, respectively. When serum CA125 was combined, the sensitivity increased to 89.19%, but the specificity remained at 52.0%. The PICRUSt results identified 7 differentially regulated pathways within the 3 groups that may be of relevance. Conclusions: Compared to that of CPPS patients without EM/AM and women without CPPS, the vaginal microbiome of patients with EM/AM-associated CPP shows significantly higher alpha (phylogenetic) diversity, as well as higher counts of Clostridium butyricum, Clostridium disporicum, Alloscardovia omnicolens, and Veillonella montpellierensis. These differences in the vaginal microbiome may interfere with local functional pathways, which could provide a direction for innovative metabolite-specific targeted treatment. The combination of vaginal biomarkers and serum CA125 may provide an original method to differentiate EM/AM-associated CPP.
Experiment 1
Reviewed Marked as Reviewed by Atrayees on 2023-7-17
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
- Posterior fornix of vagina Pars posterior fornicis vaginae,Posterior fornix,Posterior part of fornix of vagina,Posterior fornix of vagina,posterior fornix of vagina
- Condition The experimental condition / phenotype studied according to the Experimental Factor Ontology
- Endometriosis endometriosis,Endometriosis (clinical),endometriosis (disease),Endometriosis (disorder),Endometriosis (morphologic abnormality),ENDOMETRIOSIS NEC,Endometriosis NOS,Endometriosis NOS (disorder),Endometriosis of other specified sites,Endometriosis, site unspecified,Endometriosis
- Group 0 name Corresponds to the control (unexposed) group for case-control studies
- Women without CPPS presenting for routine examinations
- Group 1 name Corresponds to the case (exposed) group for case-control studies
- Women with EM-associated CPPS
- Group 1 definition Diagnostic criteria applied to define the specific condition / phenotype represented in the case (exposed) group
- Thirty-seven women with endometriosis-associated chronic pelvic pain syndrome (CPPS) confirmed by exploratory laparoscopy or surgical pathology
- Group 0 sample size Number of subjects in the control (unexposed) group
- 66
- Group 1 sample size Number of subjects in the case (exposed) group
- 37
- Antibiotics exclusion Number of days without antibiotics usage (if applicable) and other antibiotics-related criteria used to exclude participants (if any)
- Patients were excluded if they had taken antibiotics within 14 days prior to sampling
Lab analysis
- Sequencing type
- 16S
- 16S variable region One or more hypervariable region(s) of the bacterial 16S gene
- 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).
- raw counts
- Statistical test
- T-Test
- 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
- Matched on Factors on which subjects have been matched on in a case-control study
- age
Alpha Diversity
- Richness Number of species
- increased
Signature 1
Reviewed Marked as Reviewed by Atrayees on 2023-7-17
Source: Table 2
Description: The following taxa were found to be decreased in women with endometriosis associated CPPS.
Abundance in Group 1: decreased abundance in Women with EM-associated CPPS
| NCBI | Quality Control | Links |
|---|---|---|
| Lactobacillus |
Revision editor(s): Samara.Khan, Atrayees
Experiment 2
Reviewed Marked as Reviewed by Atrayees on 2023-7-17
Differences from previous experiment shown
Subjects
Lab analysis
Statistical Analysis
- Data transformation Data transformation applied to microbial abundance measurements prior to differential abundance testing (if any).
- relative abundances
- Statistical test
- LEfSe
- LDA Score above Threshold for the linear discriminant analysis (LDA) score for studies using the popular LEfSe tool
- 4
Alpha Diversity
- Richness Number of species
- increased
Signature 1
Reviewed Marked as Reviewed by Atrayees on 2023-7-17
Source: Table 2
Description: The following taxa were increased in women with endometriosis associated CPPS pain
Abundance in Group 1: increased abundance in Women with EM-associated CPPS
| NCBI | Quality Control | Links |
|---|---|---|
| Alloscardovia | ||
| Stenotrophomonas | ||
| Veillonella |
Revision editor(s): Samara.Khan, Atrayees
Signature 2
Reviewed Marked as Reviewed by Atrayees on 2023-7-17
Source: Table 2
Description: The following taxa were decreased in women with endometriosis associated CPPS pain
Abundance in Group 1: decreased abundance in Women with EM-associated CPPS
| NCBI | Quality Control | Links |
|---|---|---|
| Megasphaera | ||
| Shuttleworthella | ||
| Sneathia |
Revision editor(s): Samara.Khan, Atrayees
Experiment 3
Reviewed Marked as Reviewed by Atrayees on 2023-7-17
Differences from previous experiment shown
Subjects
- Condition The experimental condition / phenotype studied according to the Experimental Factor Ontology
- Endometriosis endometriosis,Endometriosis (clinical),endometriosis (disease),Endometriosis (disorder),Endometriosis (morphologic abnormality),ENDOMETRIOSIS NEC,Endometriosis NOS,Endometriosis NOS (disorder),Endometriosis of other specified sites,Endometriosis, site unspecified,Endometriosis
- Group 1 definition Diagnostic criteria applied to define the specific condition / phenotype represented in the case (exposed) group
- Thirty-seven women with endometriosis-associated chronic pelvic pain syndrome (CPPS) confirmed by exploratory laparoscopy or surgical pathology
Lab analysis
Statistical Analysis
- Statistical test
- Metastats
- Significance threshold p-value or FDR threshold used for differential abundance testing (if any)
- Not specified
- MHT correction Have statistical tests be corrected for multiple hypothesis testing (MHT)?
- Yes
- LDA Score above Threshold for the linear discriminant analysis (LDA) score for studies using the popular LEfSe tool
- Not specified
Alpha Diversity
- Richness Number of species
- increased
Signature 1
Reviewed Marked as Reviewed by Atrayees on 2023-7-17
Source: Table 2
Description: The following taxa were increased in women with endometriosis associated CPPS pain
Abundance in Group 1: increased abundance in Women with EM-associated CPPS
| NCBI | Quality Control | Links |
|---|---|---|
| Alloscardovia |
Revision editor(s): Atrayees
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