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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Reviewed Marked as Reviewed by Folakunmi on 2024-1-23
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


Reviewed Marked as Reviewed by Folakunmi on 2024-1-23

Curated date: 2021/01/10

Curator: WikiWorks

Revision editor(s): WikiWorks, Atrayees

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
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,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,Schizophrenia
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

Reviewed Marked as Reviewed by Folakunmi on 2024-1-23

Curated date: 2021/01/10

Curator: Fatima Zohra

Revision editor(s): WikiWorks, Atrayees, Folakunmi

Source: Figure 2A

Description: Characterization of fecal microbiota to to distinguish toxigenic types by lineear discriminant anlysis method

Abundance in Group 1: increased abundance in acute schizphrenia

NCBI Quality ControlLinks
Acetanaerobacterium
Actinomyces
Actinomycetaceae
Actinomycetales
Anaerotruncus
Bilophila
Deltaproteobacteria
Desulfovibrionaceae
Desulfovibrionales
Flavonifractor
Intestinibacter
Ruminiclostridium
Turicibacter
uncultured Oscillospiraceae bacterium

Revision editor(s): WikiWorks, Atrayees, Folakunmi

Signature 2

Reviewed Marked as Reviewed by Folakunmi on 2024-1-23

Curated date: 2021/01/10

Curator: Fatima Zohra

Revision editor(s): WikiWorks, Folakunmi

Source: Figure 2A

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 ControlLinks
Catenisphaera
Eisenbergiella
Intestinimonas
uncultured Oscillospiraceae bacterium

Revision editor(s): WikiWorks, Folakunmi

Experiment 2


Reviewed Marked as Reviewed by Folakunmi on 2024-1-23

Curated date: 2021/01/10

Curator: WikiWorks

Revision editor(s): WikiWorks, Atrayees

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

Reviewed Marked as Reviewed by Folakunmi on 2024-1-23

Curated date: 2021/01/10

Curator: Fatima Zohra

Revision editor(s): WikiWorks, Folakunmi, Welile

Source: Figure 2B

Description: Characterization of fecal microbiota to distinguish toxigenic types by linear discriminant analysis method

Abundance in Group 1: increased abundance in scizophrenia during remission

NCBI Quality ControlLinks
Actinomyces
Anaerofustis
Anaerotruncus
Atopobium
Bilophila
Candidatus Epulonipiscium
Christensenellaceae
Clostridium
Comamonas
Flavonifractor
Holdemania
Intestinibacter
Lactonifactor
Parabacteroides
Prevotella
Solobacterium
Turicibacter
uncultured Oscillospiraceae bacterium

Revision editor(s): WikiWorks, Folakunmi, Welile

Signature 2

Reviewed Marked as Reviewed by Folakunmi on 2024-1-23

Curated date: 2021/01/10

Curator: WikiWorks

Revision editor(s): WikiWorks, Folakunmi

Source: Figure 2B

Description: Characterization of fecal microbiota to distinguish toxigenic types by lineear discriminant analysis method

Abundance in Group 1: decreased abundance in scizophrenia during remission

NCBI Quality ControlLinks
Butyricicoccus
Catenisphaera
Eisenbergiella
Intestinimonas
Paraprevotella
Thomasclavelia

Revision editor(s): WikiWorks, Folakunmi

Experiment 3


Reviewed Marked as Reviewed by Folakunmi on 2024-1-23

Curated date: 2021/01/10

Curator: WikiWorks

Revision editor(s): WikiWorks, Atrayees

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

Reviewed Marked as Reviewed by Folakunmi on 2024-1-23

Curated date: 2021/01/10

Curator: Fatima Zohra

Revision editor(s): WikiWorks, Folakunmi, MyleeeA

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 ControlLinks
Clostridiaceae
unclassified Peptostreptococcaceae
Clostridium

Revision editor(s): WikiWorks, Folakunmi, MyleeeA