Changes in metabolism and microbiota after 24-week risperidone treatment in drug naïve, normal weight patients with first episode schizophrenia

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Reviewed Marked as Reviewed by Atrayees on 2023-6-27
Citation
PMID PubMed identifier for scientific articles.
DOI Digital object identifier for electronic documents.
URI
Authors
Yuan X, Zhang P, Wang Y, Liu Y, Li X, Kumar BU, Hei G, Lv L, Huang XF, Fan X, Song X
Journal
Schizophrenia research
Year
2018
Keywords:
Metabolism, Microbiota, Schizophrenia
OBJECTIVE: This study was to examine the alterations in metabolic parameters, anti-oxidant superoxide dismutase (SOD), inflammatory marker high-sensitivity C-reactive protein (hs-CRP) and microbiota after 24-week risperidone treatment in drug naïve, normal weight, first episode schizophrenia patients; the study further examined the relationship between metabolic changes and changes in microbiota. METHODS: Forty-one patients completed the 24-week study and 41 controls were enrolled in this study. Metabolic parameters, SOD, hs-CRP and the copy numbers of 5 fecal bacteria were measured at baseline (both groups) and at different time points (patients only). RESULTS: Patients had significantly lower numbers of fecal Bifidobacterium spp., Escherichia coli, Lactobacillus spp. compared with healthy controls (HC) (ps < 0.001); in contrast, the numbers of fecal Clostridium coccoides group were significantly higher in the patient group compared with HC (p < 0.001). After 24-week risperidone treatment, there were significant increases in body weight, BMI, fasting blood-glucose, triglycerides, LDL, hs-CRP, SOD and HOMA-IR (p < 0.001), significant increases in the numbers of fecal Bifidobacterium spp. and E. coli (ps < 0.001), and significant decreases in the numbers of fecal Clostridium coccoides group and Lactobacillus spp. (ps < 0.001). Hierarchical multiple linear regression analysis shows that after controlling for potential confounding variables, only the changes in fecal Bifidobacterium spp., among 4 types of fecal bacteria, entered into the model and significantly correlated with the changes in weight (unstandardized coefficient B = 4.413, R2 change = 0.167, p = 0.009) and BMI (B = 1.639, R2 change = 0.172, p = 0.008) after 24-week treatment. CONCLUSION: Drug naïve, first episode schizophrenia patients show abnormalities in microbiota composition. Risperidone treatment causes significant changes in certain fecal bacteria, which are likely associated with antipsychotic medication induced metabolic changes.

Experiment 1


Reviewed Marked as Reviewed by Atrayees on 2023-6-27

Curated date: 2021/01/10

Curator: WikiWorks

Revision editor(s): WikiWorks, Rimsha, Claregrieve1, Atrayees, Victoria

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
schizophrenia
Group 1 definition Diagnostic criteria applied to define the specific condition / phenotype represented in the case (exposed) group
Drug-naive first-episode schizophrenia patients
Group 0 sample size Number of subjects in the control (unexposed) group
41
Group 1 sample size Number of subjects in the case (exposed) group
41
Antibiotics exclusion Number of days without antibiotics usage (if applicable) and other antibiotics-related criteria used to exclude participants (if any)
1 month

Lab analysis

Sequencing type
16S
16S variable region One or more hypervariable region(s) of the bacterial 16S gene
Not specified
Sequencing platform Manufacturer and experimental platform used for quantifying microbial abundance
RT-qPCR

Statistical Analysis

Data transformation Data transformation applied to microbial abundance measurements prior to differential abundance testing (if any).
raw counts
Statistical test
T-Test
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
Confounders controlled for Confounding factors that have been accounted for by stratification or model adjustment
age, sex, smoking status


Signature 1

Reviewed Marked as Reviewed by Atrayees on 2023-6-27

Curated date: 2021/01/10

Curator: Fatima Zohra

Revision editor(s): WikiWorks

Source: table 2

Description: comparison of fecal bacteria between schizophrenic patients and controls

Abundance in Group 1: decreased abundance in schizophrenia

NCBI Quality ControlLinks
Bifidobacterium
Escherichia coli
Lactobacillus

Revision editor(s): WikiWorks

Signature 2

Reviewed Marked as Reviewed by Atrayees on 2023-6-27

Curated date: 2023/06/27

Curator: Atrayees

Revision editor(s): Atrayees

Source: table 2

Description: comparison of fecal bacteria between schizophrenic patients and controls

Abundance in Group 1: decreased abundance in schizophrenia

NCBI Quality ControlLinks
Blautia coccoides

Revision editor(s): Atrayees