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Updated: Jun 22, 2025

Microbiota Analysis Using Two-step PCR and Next-generation 16S rRNA Gene Sequencing
Published on: October 15, 2019
Perturbations in gut microbiota composition in schizophrenia.
YiMeng Wang1, SiGuo Bi2, XiaoLong Li2
1School of Public Health, Inner Mongolia Medical University, Hohhot, Inner Mongolia, China.
Gut microbes may play a role in schizophrenia. This study found higher levels of certain gut bacteria (Clostridium, Megasphaera) in schizophrenia patients, suggesting a link between gut microbiota and the disorder.
Area of Science:
- Microbiology
- Neuroscience
- Psychiatry
Background:
- Schizophrenia is a complex psychiatric disorder with an unclear cause.
- The gut-brain axis highlights the connection between gut microbes and the central nervous system.
- Research into the gut microbiota's role in schizophrenia is needed.
Purpose of the Study:
- To investigate the relationship between gut microbial composition and function in patients with schizophrenia.
- To compare the gut microbiota of individuals with schizophrenia to that of healthy controls.
Main Methods:
- 16S rRNA gene sequencing and whole-genome shotgun metagenomic sequencing were performed.
- Microbial diversity, composition, and function were analyzed in 29 schizophrenia patients and 30 healthy controls.
- Statistical analyses were used to identify differences between the groups.
Main Results:
- Patients with schizophrenia exhibited higher abundances of Clostridium and Megasphaera compared to controls.
- Functional analysis indicated associations between sphingolipid, phosphonates and phosphinates, and glutamine metabolism with schizophrenia.
- Significant differences in gut microbial profiles were observed between schizophrenia patients and healthy individuals.
Conclusions:
- The gut microbiota composition and function are altered in patients with schizophrenia.
- Specific bacterial taxa and metabolic pathways in the gut may be implicated in the pathophysiology of schizophrenia.
- These findings offer insights into potential gut microbiota-targeted interventions for schizophrenia.
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Schizophrenia

