Microbiota composition and distribution along the female reproductive tract of women with endometriosis
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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
Wei W, Zhang X, Tang H, Zeng L, Wu R
Journal
Annals of clinical microbiology and antimicrobials
Year
2020
Keywords:
16S rRNA gene amplicon sequencing, Endometriosis, Microbial community composition, Microbial distribution
Endometriosis (EMS) is a multifactorial disease that affects 10%-15% women of reproductive age and is associated with chronic pelvic pain and infertility. The pathogenesis of EMS has not been consistently explained until now. In this study, we involved 36 endometriosis patients and 14 control subjects who performed laparoscopic surgery due to gynecological benign tumor. The samples from lower third of vagina (CL), posterior vaginal fornix (CU), cervical mucus (CV), endometrium (ET) and peritoneal fluid (PF), were collected and sequenced by 16S rRNA amplicon. The continuous change of the microbiota distribution was identified along the reproductive tract. The flora in lower reproductive tract (CL, CU) were dominated by Lactobacillus. Significant difference of the community diversity began showing in the CV of EMS patients and gradually increased upward the reproductive tract. It indicates the microbiota in cervical samples is expected to be an indicator for the risk of EMS. This study also highlights the decreasing of Lactobacillus in vaginal flora and the increasing of signature Operational Taxonomic Units (OTUs) in transaction zone (CV) and upper reproductive tract (ET, PF) of EMS patients, which reflect the alteration of microbial community associated with EMS, participation of specific colonized bacteria in the EMS pathogenesis and relationship between microbiota and development of disease.
Experiment 1
Reviewed Marked as Reviewed by Peace Sandy on 2024-2-8
Curated date: 2021/08/09
Curator: Samara.Khan
Revision editor(s): Samara.Khan, WikiWorks, Peace Sandy
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
- Lower part of vagina , Upper part of vagina , Cervical mucus Caudal vagina,Lower third of vagina,Lower vagina,Perineal part of vagina,Sinus vagina,Vagina lower part,Vaginal bulb,Lower part of vagina,lower part of vagina,Cranial vagina,Pelvic part of vagina,Upper third of vagina,Upper vagina,Vagina upper part,Upper part of vagina,upper part of vagina,Cervix mucus,Cervical mucus,cervical mucus
- 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
- Controls Subject undergoing laparoscopic surgery for benign tumors
- Group 1 name Corresponds to the case (exposed) group for case-control studies
- Endometriosis patients
- Group 1 definition Diagnostic criteria applied to define the specific condition / phenotype represented in the case (exposed) group
- Women with endometriosis
- Group 0 sample size Number of subjects in the control (unexposed) group
- 14
- Group 1 sample size Number of subjects in the case (exposed) group
- 36
- 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
- 16S
- 16S variable region One or more hypervariable region(s) of the bacterial 16S gene
- V4-V5
- Sequencing platform Manufacturer and experimental platform used for quantifying microbial abundance
- Ion Torrent
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)?
- No
Signature 1
Reviewed Marked as Reviewed by Peace Sandy on 2024-2-8
Source: Fig. 2
Description: The signature OTUs identified in the different sites of female reproductive tract were shown, including a vagina (CL), b posterior vaginal fornix (CU), c cervical mucus (CV), d endometrium (ET) and e peritoneal fluid (PF). Blue bar and purple bar note higher abundancy were occurred in EMS patients and healthy women, representatively. The signature OTUs were defined by Wilcoxon-rank sum test with p value < 0.05
Abundance in Group 1: increased abundance in Endometriosis patients
Revision editor(s): Peace Sandy
Signature 2
Reviewed Marked as Reviewed by Peace Sandy on 2024-2-8
Source: Fig. 2
Description: The signature OTUs identified in the different sites of female reproductive tract were shown, including a vagina (CL), b posterior vaginal fornix (CU), c cervical mucus (CV), d endometrium (ET) and e peritoneal fluid (PF). Blue bar and purple bar note higher abundancy were occurred in EMS patients and healthy women, representatively. The signature OTUs were defined by Wilcoxon-rank sum test with p value < 0.05
Abundance in Group 1: increased abundance in Endometriosis patients
Revision editor(s): Peace Sandy
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