Analysis of the diversity of intestinal microbiome and its potential value as a biomarker in patients with schizophrenia: A cohort 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
Pan R, Zhang X, Gao J, Yi W, Wei Q, Su H
Journal
Psychiatry research
Year
2020
Keywords:
16S function prediction, 16S rRNA sequencing, Gut microbiome, Random forest, Schizophrenia
Exploring the gut microbiota characteristics of patients with acute and remission schizophrenia (SCZ) and evaluating the potential of the gut microbiome as a non-invasive biomarker for SCZ. A total of 87 fecal samples were collected, including a total of 58 samples from 29 SCZ patients over two different periods (remission and onset period) and 29 samples from the control group for 16S rRNA Miseq.The changes of intestinal microbiota in SCZ patients from remission to onset were analyzed, and a random forest model was constructed to recognize biomarkers. The optimal three genus-level diagnosis biomarkers were identified through an AUC validation on a random forest model, furthermore, an AUC of 0.76 (95% CI (0.63, 0.89)) was achieved between 29 aSCZ and 29 HCs. Compared with the control group, the first 11 OUT-level' biomarkers were identified in rSCZ group. As a status marker of the disease, the AUC of 0.7 (95% CI (0.56, 0.84)) was achieved between 29 rSCZ and 29 HCs. There were differences between SCZ patients and HCs, acute and remission patients as well, suggesting that the potential of the gut microbiota as a non-invasive diagnostic tool. Moreover, the features of the gut microbiome of SCZ provide clues for disease prognosis assessment and targeted intervention.
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
- schizophrenia [X]Schizophrenia, unspecified,[X]Schizophrenia, unspecified (disorder),Dementia Praecox,Disorder, Schizophrenic,Disorders, Schizophrenic,Other specified types of schizophrenia,Other specified types of schizophrenia, chronic state,Other specified types of schizophrenia, chronic state with acute exacerbation,Other specified types of schizophrenia, in remission,Other specified types of schizophrenia, subchronic state,Other specified types of schizophrenia, subchronic state with acute exacerbation,Other specified types of schizophrenia, unspecified state,SCHIZO NEC-CHR/EXACERB,SCHIZO NEC-SUBCHR/EXACER,SCHIZO NOS-CHR/EXACERB,SCHIZO NOS-SUBCHR/EXACER,schizoaffective disorder,schizophrenia,schizophrenia (disease),Schizophrenia (disorder),SCHIZOPHRENIA NEC-CHR,SCHIZOPHRENIA NEC-REMISS,SCHIZOPHRENIA NEC-SUBCHR,SCHIZOPHRENIA NEC-UNSPEC,Schizophrenia NOS,Schizophrenia NOS (disorder),SCHIZOPHRENIA NOS-UNSPEC,schizophrenia with or without an affective disorder,Schizophrenia, NOS,schizophrenia-1,Schizophrenias,SCHIZOPHRENIC DIS,Schizophrenic Disorder,Schizophrenic Disorders,Schizophrenic disorders (disorder),SCZD,Unspecified schizophrenia,Unspecified schizophrenia (disorder),Unspecified schizophrenia, chronic state with acute exacerbation,Unspecified schizophrenia, subchronic state with acute exacerbation,Unspecified schizophrenia, unspecified state
- Group 0 name Corresponds to the control (unexposed) group for case-control studies
- healthy controls
- Group 1 name Corresponds to the case (exposed) group for case-control studies
- acute schizphrenia
- Group 1 definition Diagnostic criteria applied to define the specific condition / phenotype represented in the case (exposed) group
- patients who complied with diagnostic criteria for SCZ in the Diagnostic and Statistical Manual of Mental DIsorders Fourth Edition, Positive and negative syndrome scale, PANSS<60; No change in antipsychotic regimen (within two weeks)
- Group 0 sample size Number of subjects in the control (unexposed) group
- 29
- Group 1 sample size Number of subjects in the case (exposed) group
- 29
- Antibiotics exclusion Number of days without antibiotics usage (if applicable) and other antibiotics-related criteria used to exclude participants (if any)
- 2 weeks
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
- 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
- Matched on Factors on which subjects have been matched on in a case-control study
- age, sex, body mass index
Alpha Diversity
- Shannon Estimator of species richness and species evenness: more weight on species richness
- unchanged
- Chao1 Abundance-based estimator of species richness
- unchanged
- Simpson Estimator of species richness and species evenness: more weight on species evenness
- unchanged
Signature 1
Needs review
Source: Figure 2
Description: Characterization of fecal microbiota to to distinguish toxigenic types by lineear discriminant anlysis method
Abundance in Group 1: increased abundance in acute schizphrenia
Signature 2
Needs review
Source: Figure 2
Description: Characterization of fecal microbiota to to distinguish toxigenic types by lineear discriminant anlysis method
Abundance in Group 1: decreased abundance in acute schizphrenia
| NCBI | Quality Control | Links |
|---|---|---|
| Eisenbergiella | ||
| Intestinimonas | ||
| Catenisphaera |
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
- scizophrenia during remission
Lab analysis
Statistical Analysis
Alpha Diversity
- Shannon Estimator of species richness and species evenness: more weight on species richness
- unchanged
- Chao1 Abundance-based estimator of species richness
- unchanged
- Simpson Estimator of species richness and species evenness: more weight on species evenness
- unchanged
Signature 1
Needs review
Source: Figure 2
Description: Characterization of fecal microbiota to to distinguish toxigenic types by lineear discriminant anlysis method
Abundance in Group 1: increased abundance in scizophrenia during remission
| NCBI | Quality Control | Links |
|---|---|---|
| Clostridium | ||
| Intestinibacter | ||
| Parabacteroides | ||
| Turicibacter |
Revision editor(s): WikiWorks
Signature 2
Needs review
Source: Figure 2
Description: Characterization of fecal microbiota to to distinguish toxigenic types by lineear discriminant anlysis method
Abundance in Group 1: decreased abundance in scizophrenia during remission
| NCBI | Quality Control | Links |
|---|---|---|
| Butyricicoccus | ||
| Paraprevotella | ||
| Eisenbergiella |
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
- symptomatic remission
- Group 1 name Corresponds to the case (exposed) group for case-control studies
- acute schizphrenia
- Antibiotics exclusion Number of days without antibiotics usage (if applicable) and other antibiotics-related criteria used to exclude participants (if any)
- 4 weeks
Lab analysis
Statistical Analysis
Alpha Diversity
- Shannon Estimator of species richness and species evenness: more weight on species richness
- unchanged
- Chao1 Abundance-based estimator of species richness
- unchanged
- Simpson Estimator of species richness and species evenness: more weight on species evenness
- unchanged
Signature 1
Needs review
Source: Figure 3
Description: Characterization of fecal microbiota to to distinguish toxigenic types by lineear discriminant anlysis method
Abundance in Group 1: decreased abundance in acute schizphrenia
| NCBI | Quality Control | Links |
|---|---|---|
| Clostridium | ||
| Peptostreptococcaceae |
Revision editor(s): WikiWorks
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