Structural and functional profiles of the gut microbial community in polycystic ovary syndrome with insulin resistance (IR-PCOS): a pilot study
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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
Zeng B, Lai Z, Sun L, Zhang Z, Yang J, Li Z, Lin J, Zhang Z
Journal
Research in microbiology
Year
2019
Keywords:
Gut microbial community, Insulin resistance, Polycystic ovary syndrome
Polycystic ovary syndrome (PCOS) is a complex endocrine and metabolic disorder that affects 9-21% of reproductive-aged women. Affected women frequently display obesity, insulin resistance, and inflammation. Altered gut microbial community has been reported in PCOS and obese PCOS patients. However, the profile of the gut microbial community in insulin resistant PCOS (IR-PCOS) patients still remains unknown. In this study, next-generation sequencing based on the 16S rRNA gene was used to compare the gut microbial composition of women with IR-PCOS (n = 9, PCOS with insulin resistance), NIR-PCOS (n = 8, PCOS alone) and healthy controls (n = 8, HC). We assessed that the composition of the gut microbial communities in NIR-PCOS and IR-PCOS patients were significantly altered. The family Bacteroidaceae was prolific in the NIR-PCOS group and reached its highest level in the IR-PCOS group, while the Prevotellaceae dramatically decreased in PCOS patients, especially in the IR-PCOS group. Subsequent correlation analysis revealed that the increased clinical parameter levels, including insulin resistance, sex-hormones and inflammation, were positively associated with the abundance of Bacteroidaceae, but negatively associated with that of Prevotellaceae. In addition, IR-PCOS patients also displayed a significant difference in their amounts of Ruminococcaceae and Lachnospiraceae when compared to the NIR-PCOS group. Moreover, the functional prediction from PICRUSt revealed that 73 pathways are significantly changed in the gut microbial communities of PCOS patients. Specifically, 21 metabolism-associated pathways, including the steroid hormone biosynthesis and lipopolysaccharide biosynthesis pathways, are obviously changed in IR-PCOS when compared to NIR-PCOS and HC groups. Taking this into consideration, our present study suggests that the dysbiosis of gut microbial communities occurred most notably in IR-PCOS patients, and the difference in gut dysbiosis profile between the IR-PCOS and NIR-PCOS should be considered in clinical treatment for PCOS patients and future drugs development.
Experiment 1
Subjects
- Location of subjects
- China
- Host species Species from which microbiome was sampled (if applicable)
- 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
- Condition The experimental condition / phenotype studied according to the Experimental Factor Ontology
- polycystic ovary syndrome Cystic disease of ovaries,hyperandrogenemia,Multicystic ovaries,multicystic ovaries,Ovarian Degeneration, Sclerocystic,Ovarian Syndrome, Polycystic,Ovarian Syndromes, Polycystic,Ovaries, Sclerocystic,Ovary Syndrome, Polycystic,Ovary, Sclerocystic,PCO - Polycystic ovaries,Pco1,PCOD - Polycystic ovarian disease,PCOS,Pcos,PCOS - Polycystic ovarian syndrome,PCOS1,Polycystic ovarian disease,polycystic ovarian disease,Polycystic ovarian syndrome,Polycystic ovaries,polycystic ovaries,Polycystic ovaries (disorder),polycystic ovary,polycystic ovary syndrome,polycystic ovary syndrome 1,Sclerocystic Ovarian Degeneration,Sclerocystic Ovaries,Sclerocystic Ovary,Sclerocystic Ovary Syndrome,Stein Leventhal Syndrome,Stein-Leventhal synd.,Stein-Leventhal Syndrome,Stein-Leventhal syndrome,Syndrome, Polycystic Ovary,Syndrome, Stein-Leventhal
- Group 0 name Corresponds to the control (unexposed) group for case-control studies
- HC
- Group 1 name Corresponds to the case (exposed) group for case-control studies
- NIR-PCOS
- Group 1 definition Diagnostic criteria applied to define the specific condition / phenotype represented in the case (exposed) group
- diagnosed if two of the following were present: olig-/amenorrhea, clinical and/or biochemical hyperandrogenish, or polycystic ovaries
- Group 0 sample size Number of subjects in the control (unexposed) group
- 8
- Group 1 sample size Number of subjects in the case (exposed) group
- 8
- Antibiotics exclusion Number of days without antibiotics usage (if applicable) and other antibiotics-related criteria used to exclude participants (if any)
- administration of antibiotics
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
- 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)?
- Yes
Alpha Diversity
- Shannon Estimator of species richness and species evenness: more weight on species richness
- unchanged
Signature 1
Needs review
Source: Figure 2, Figure 3
Description: Composition of gut microbial community among IR-PCOS and NIR-PCOS patients and healthy controls
Abundance in Group 1: increased abundance in NIR-PCOS
| NCBI | Quality Control | Links |
|---|---|---|
| Bacteroidaceae | ||
| Lachnospiraceae | ||
| Bacteroides | ||
| Lachnospira |
Revision editor(s): WikiWorks
Signature 2
Needs review
Source: Figure 2, Figure 3
Description: Composition of gut microbial community among IR-PCOS and NIR-PCOS patients and healthy controls
Abundance in Group 1: decreased abundance in NIR-PCOS
| NCBI | Quality Control | Links |
|---|---|---|
| Prevotellaceae | ||
| Prevotella |
Revision editor(s): WikiWorks
Experiment 2
Differences from previous experiment shown
Subjects
- Group 1 name Corresponds to the case (exposed) group for case-control studies
- IR-PCOS
- Group 1 sample size Number of subjects in the case (exposed) group
- 9
Lab analysis
Statistical Analysis
Alpha Diversity
- Shannon Estimator of species richness and species evenness: more weight on species richness
- unchanged
Signature 1
Needs review
Source: Figure 2, Figure 3
Description: Composition of gut microbial community among IR-PCOS and NIR-PCOS patients and healthy controls
Abundance in Group 1: increased abundance in IR-PCOS
| NCBI | Quality Control | Links |
|---|---|---|
| Alcaligenaceae | ||
| Lachnospira | ||
| Bacteroides | ||
| Bacteroidaceae |
Revision editor(s): WikiWorks
Signature 2
Needs review
Source: Figure 2, Figure 3
Description: Composition of gut microbial community among IR-PCOS and NIR-PCOS patients and healthy controls
Abundance in Group 1: decreased abundance in IR-PCOS
| NCBI | Quality Control | Links |
|---|---|---|
| Prevotellaceae | ||
| Prevotella |
Revision editor(s): WikiWorks
Experiment 3
Differences from previous experiment shown
Subjects
- Group 0 name Corresponds to the control (unexposed) group for case-control studies
- IR-PCOS
- Group 1 name Corresponds to the case (exposed) group for case-control studies
- NIR-PCOS
Lab analysis
Statistical Analysis
Alpha Diversity
- Shannon Estimator of species richness and species evenness: more weight on species richness
- unchanged
Signature 1
Needs review
Source: Figure 2, Figure 3
Description: Composition of gut microbial community among IR-PCOS and NIR-PCOS patients and healthy controls
Abundance in Group 1: increased abundance in NIR-PCOS
| NCBI | Quality Control | Links |
|---|---|---|
| Bacillota | ||
| Oscillospiraceae | ||
| Lachnospiraceae | ||
| Bacteroidia | ||
| Bacteroidales | ||
| Bacteroides |
Revision editor(s): WikiWorks
Signature 2
Needs review
Source: Figure 2, Figure 3
Description: Composition of gut microbial community among IR-PCOS and NIR-PCOS patients and healthy controls
Abundance in Group 1: decreased abundance in NIR-PCOS
| NCBI | Quality Control | Links |
|---|---|---|
| Bacteroidota | ||
| Bacteroidaceae | ||
| Faecalibacterium | ||
| Eubacteriales | ||
| Clostridia |
Revision editor(s): WikiWorks
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