Cervical microbiome is altered in cervical intraepithelial neoplasia after loop electrosurgical excision procedure in china
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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
Zhang H, Lu J, Lu Y, Cai Q, Liu H, Xu C
Journal
Scientific reports
Year
2018
Although human papillomavirus (HPV) infection is a major cause leading to the development of cervical intraepithelial neoplasia (CIN), the relationship between genital microbiome and HPV persistence/clearance is not well established. Loop electrosurgical excision procedure (LEEP) is one of standard treatments of CIN 2/3 globally, yet little is known about how the LEEP influence genital microbiota. We conducted a prospective study of 26 patients with CIN2/3 who underwent analysis of cervical microbiome before and after 3 months of LEEP treatment. Cervical swabs were collected, and microbiomes were analyzed by 16S ribosomal RNA gene sequencing. A decrease of cervical microbial diversity was observed after 3 months of LEEP treatment. Notably, a significant shift from community type of a Prevotella-containing and lack of a consistent dominant species to lactobacillus iners dominated microbiome correlated with LEEP. Particularly, Leptotrichia and clostridium were further decreased after LEEP treatment (P = 0.049 and P = 0.002, respectively). Our results suggest that the cervical microbiome is altered after LEEP treatment in patients with CIN2/3. Further studies with larger sample sizes are needed to validate these findings.
Experiment 1
Reviewed Marked as Reviewed by Fatima Zohra on 2021/02/09
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
- Uterine cervix Canalis cervicis uteri,Caudal segment of uterus,Cervical canal,Cervical canal of uterus,Cervix,Cervix of uterus,Cervix uteri,Neck of uterus,Uterine cervix
- Condition The experimental condition / phenotype studied according to the Experimental Factor Ontology
- cervical glandular intraepithelial neoplasia cervical glandular intraepithelial neoplasia
- Group 0 name Corresponds to the control (unexposed) group for case-control studies
- after loop electrosurgical excision procedure
- Group 1 name Corresponds to the case (exposed) group for case-control studies
- before
- Group 1 definition Diagnostic criteria applied to define the specific condition / phenotype represented in the case (exposed) group
- Cervical intraepithelial neoplasia 2/3 patients who underwent Loop electrosurgical excision procedure(LEEP)
- Group 0 sample size Number of subjects in the control (unexposed) group
- 26
- Group 1 sample size Number of subjects in the case (exposed) group
- 26
- 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
- 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
- LEfSe
- 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
- 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
- unchanged
- Inverse Simpson Modification of Simpsons index D as 1/D to obtain high values in datasets of high diversity and vice versa
- unchanged
- Richness Number of species
- increased
Signature 1
Reviewed Marked as Reviewed by Fatima Zohra on 2021/02/09
Source: Figure 4
Description: Histogram of the LDA scores was used to features differentially abundant between LEEP and no LEEP state.
Abundance in Group 1: increased abundance in before
Signature 2
Reviewed Marked as Reviewed by Fatima Zohra on 2021/02/09
Source: Figure 4
Description: Histogram of the LDA scores was used to features differentially abundant between LEEP and no LEEP state.
Abundance in Group 1: decreased abundance in before
NCBI | Quality Control | Links |
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Staphylococcus | ||
Moraxellaceae | ||
Erysipelotrichales | ||
Erysipelotrichia | ||
Erysipelotrichaceae | ||
Ralstonia | ||
Coriobacteriales | ||
Coriobacteriaceae | ||
Bacillota | ||
Bacilli |
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