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Updated: Mar 15, 2026
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Microbiota Analysis Using Two-step PCR and Next-generation 16S rRNA Gene Sequencing
Published on: October 15, 2019
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Alzheimer's disease and gut microbiota
1Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences, Beijing, 100101, China.
Science China. Life Sciences
|August 28, 2016
Summary
Alzheimer's disease (AD) risk may originate in the gut due to gut microbiota imbalances. Modulating gut microbes through diet or probiotics could offer new AD treatments.
Area of Science:
- Neuroscience
- Microbiology
- Gastroenterology
Background:
- Alzheimer's disease (AD) is a leading cause of cognitive impairment.
- The gut microbiota influences brain function and behavior through the microbiota-gut-brain axis.
- Alterations in gut microbiota composition are linked to AD pathogenesis.
Purpose of the Study:
- To explore the relationship between gut microbiota and Alzheimer's disease.
- To investigate how gut microbiota disturbances impact cognitive function and AD risk.
- To evaluate the potential of gut microbiota modulation as an AD therapeutic strategy.
Main Methods:
- Studies involving germ-free animals, antibiotic treatments, probiotic interventions, and dietary changes.
- Analysis of gut permeability, blood-brain barrier integrity, and neurochemical changes.
- Examination of the role of gut microbial metabolites and pathogenic infections.
Main Results:
- Gut microbiota alterations affect host cognitive behavior and AD risk.
- Increased intestinal and blood-brain barrier permeability, driven by microbiota dysbiosis, correlates with neurodegeneration.
- Gut microbial metabolites and infections can influence AD incidence.
Conclusions:
- Alzheimer's disease may have its origins in the gut.
- Gut microbiota imbalance is closely associated with AD development.
- Personalized diet and beneficial microbiota interventions show promise for AD treatment.
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